Papers

@article{gonzalez-sanchez_signatures_2026,

title = {Signatures of Edge States in Antiferromagnetic Van der Waals Josephson Junctions},

author = {Celia González-Sánchez and Ignacio Sardinero and Jorge Cuadra and Alfredo Spuri and José A. Moreno and Hermann Suderow and Elke Scheer and Pablo Burset and Angelo Di Bernardo and Rubén Seoane Souto and Eduardo J. H. Lee},

url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/adma.202521250},

doi = {10.1002/adma.202521250},

issn = {1521-4095},

year  = {2026},

date = {2026-01-01},

urldate = {2026-03-31},

journal = {Advanced Materials},

volume = {n/a},

number = {n/a},

pages = {e21250},

abstract = {The combination of superconductivity and magnetic textures leads to unconventional superconducting phenomena, including new correlated and topological phases. Van der Waals (vdW) materials emerge as a versatile platform for exploring the interplay between these two competing orders. Here, we report on individual vphantomtextbackslashrm NbSe_2textbackslash/vphantomtextbackslashrm NiPS_3textbackslash/vphantomtextbackslashrm NbSe_2textbackslash Josephson junctions behaving as superconducting quantum interference devices (SQUIDs), which we attribute to the interplay between the superconductivity of vphantomtextbackslashrm NbSe_2textbackslash and the spin texture of the vdW antiferromagnetic insulator vphantomtextbackslashrm NiPS_3textbackslash. This behavior persists for in-plane magnetic fields of at least 6 T and is the result of interference between separated transport channels. Microscopic modeling of the antiferromagnet insulator/superconductor (AFI/S) interface reveals the formation of localized states at the edges of the junction that can lead to channels that dominate transport. Our findings highlight AFI/S heterostructures as a platform for engineering novel superconducting phenomena and establish a new route for lithography-free SQUIDs that operate in high magnetic fields.},

note = {_eprint: https://advanced.onlinelibrary.wiley.com/doi/pdf/10.1002/adma.202521250},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{mendez-gonzalez_evolution_2026,

title = {Evolution of the structural and optical properties of La doped silver niobate-based thin films},

author = {Yanela Mendéz-González and José D. S. Guerra and Fernando Agulló-Rueda and Ovidio Peña-Rodríguez and A. Fernández García and Miguel Manso Silván},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105012926172&doi=10.1016%2Fj.mseb.2025.118667&partnerID=40&md5=0a68710e01f598b621caee93d376b386},

doi = {10.1016/j.mseb.2025.118667},

issn = {09215107},

year  = {2026},

date = {2026-01-01},

journal = {Materials Science and Engineering: B},

volume = {323},

publisher = {Elsevier Ltd},

abstract = {A detailed investigation on the structural and optical properties was conducted in lanthanum-substituted Ag(Nb<inf>0.80</inf>Ta<inf>0.20</inf>)O<inf>3</inf> (ALNTx) thin films with La$^textrm3+$ concentrations of x = 0, 0.01, 0.02, and 0.03, prepared via chemical solution deposition process. X-ray diffraction confirmed the formation of a polycrystalline perovskite phase (orthorhombic, Pb2<inf>1</inf>m) in all compositions, alongside minor Ag and Ag<inf>2</inf>O secondary-phases at low La levels. Raman spectroscopy revealed a progressive increase in the active vibrational modes with La doping, reaching up to 19 modes for the compositions with x = 0.02 and 0.03. In particular, the M<inf>1</inf> band (at 108–110 cm$^textrm−1$) emerges only at these higher dopant levels, along with the progressive appearance of additional modes in the 550–950 cm$^textrm−1$ region (identified as M<inf>13</inf>–M<inf>19</inf>) as the La-content increases, indicating enhanced local structural distortion and NbO<inf>6</inf> octahedral tilting. RBS analysis confirmed homogeneous stoichiometry and film thicknesses ranging from 4.4 × 10$^textrm17$ to 7.0 × 10$^textrm17$ atoms/cm$^textrm2$. Optical measurements revealed an indirect bandgap narrowing from 3.50 eV (undoped) to 2.81 eV (x = 0.02), driven by lattice distortion, local bonding changes and reduced Ag/La–O hybridization. The findings demonstrate that the La doping is an effective strategy for tuning the structural and optical properties of Ag(Nb,Ta)O<inf>3</inf> thin films, making them attractive for integration into specialized optoelectronic applications, such as functional layers in tandem or multilayer energy devices. © 2025 The Author(s)},

note = {Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{lopez-mendez_tri-modal_2026,

title = {Tri-Modal Anticancer Strategies with Doxorubicin-Loaded Iron Oxide Nanoparticles Integrating Chemo and Magneto-Photothermal Therapeutic Effects},

author = {Rosalía López-Méndez and Nuria Lafuente-Gómez and Eva Céspedes and Mónica Dhanjani and Marina París-Ogáyar and Francisco José Terán and A. Serrano and Julio J. Camarero and Gorka Salas and Claire Wilhelm and Álvaro Somoza and Ana Espinosa},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105016484634&doi=10.1002%2Fanbr.202500098&partnerID=40&md5=1883e10fd4ff91867a1189f1f1b3835c},

doi = {10.1002/anbr.202500098},

year  = {2026},

date = {2026-01-01},

journal = {Advanced NanoBiomed Research},

volume = {6},

number = {1},

publisher = {John Wiley and Sons Inc},

abstract = {In this study, the potential of maghemite (γ-Fe<inf>2</inf>O<inf>3</inf>) nanoparticles (MNPs) functionalized with doxorubicin (DOX) is explored for chemo-magneto-photothermal therapy in cancer treatment. MNPs are functionalized through electrostatic interactions or disulfide bonds, achieving high drug-loading efficiencies. The trimodal approach combines magnetic hyperthermia (MHT), photothermal therapy (PTT) and local chemotherapy, utilizing low and clinically relevant doses. Thermal treatments induced controlled temperature increases, triggering pH-sensitive DOX release in the acidic environments typical of tumors. Efficient uptake of DOX-loaded MNPs is observed, and their structural integrity is confirmed using advanced synchrotron spectroscopic techniques. Cytotoxicity assays show that MHT and PTT together enhanced therapeutic efficacy compared to free DOX, while minimizing toxicity to healthy cells. This study demonstrates that combining thermal therapies with controlled drug release provides a promising strategy for improving cancer treatment outcomes. The findings highlight the potential clinical application of multifunctional nanoparticle systems for targeted, low-toxicity cancer therapies, advancing the path toward more effective and accessible treatments. © 2025 The Author(s). Advanced NanoBiomed Research published by Wiley-VCH GmbH.},

note = {Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{galindo_lithiation_2026,

title = {Lithiation Analysis of Metal Components for Li-Ion Battery Using Ion Beams},

author = {A. Galindo and Neubi Francisco Xavier and Noelia Maldonado and Jesús Díaz-Sánchez and C. Morant and Gastón García and Celia Polop and Qiong Cai and Enrique Vasco},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105026277172&doi=10.1002%2Fbte2.70076&partnerID=40&md5=22e5008be8a0c6f6b6716ef018f9f4fc},

doi = {10.1002/bte2.70076},

year  = {2026},

date = {2026-01-01},

journal = {Battery Energy},

volume = {5},

number = {1},

publisher = {John Wiley and Sons Inc},

abstract = {Metal components are extensively used as current collectors, anodes, and interlayers in lithium-ion batteries. Integrating these functions into one component enhances the cell's energy density and simplifies its design. However, this multifunctional component must meet stringent requirements, including high and reversible Li storage capacity, rapid lithiation/delithiation kinetics, mechanical stability, and safety. Six single-atom metals (Mg, Zn, Al, Ag, Sn, and Cu) are screened for lithiation behavior through their interaction with ion beams in electrochemically tested samples subjected to both weak and strong lithiation regimes. These different lithiation regimes allowed us to differentiate between the thermodynamics and kinetic aspects of the lithiation process. Three types of ions are used to determine Li depth profile: H$^textrm+$ for nuclear reaction analysis (NRA), He$^textrm+$ for Rutherford backscattering (RBS), and Ga$^textrm+$ for focused ion beam milling. The study reveals three lithiation behaviors: (i) Zn, Al, Sn form pure alloys with Li; (ii) Mg, Ag create intercalation solid solutions; (iii) Cu acts as a lithiation barrier. NRA and RBS offer direct and quantitative data, providing a more comprehensive understanding of the lithiation process in LIB components. These findings fit well with our ab initio simulation results, establishing a direct correlation between electrochemical features and fundamental thermodynamic parameters. © 2025 The Author(s). Battery Energy published by Xijing University and John Wiley & Sons Australia, Ltd.},

note = {Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{sardinero_odd-frequency_2026,

title = {Odd-Frequency Pairing in Josephson Junctions Coupled by Magnetic Textures},

author = {Ignacio Sardinero and Jorge Cayao and Rubén Seoane Souto and Pablo Burset},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105028908334&doi=10.1002%2Fpssr.202500413&partnerID=40&md5=2e44c10868c6b7a9c296435810d85fc8},

doi = {10.1002/pssr.202500413},

issn = {18626254},

year  = {2026},

date = {2026-01-01},

journal = {Physica Status Solidi - Rapid Research Letters},

volume = {20},

number = {1},

publisher = {John Wiley and Sons Inc},

abstract = {Josephson junctions (JJs) coupled through magnetic textures provide a controllable platform for odd-frequency superconductivity and Majorana physics. Within a tight-binding Green function framework, induced pair correlations and spectral properties are analyzed under various magnetic and geometric conditions. When the junction is in the topologically trivial regime, even-frequency singlet pairing is dominant, whereas the topological phase is characterized by the coexistence of Majorana bound states and robust odd-frequency equal-spin triplet pairing at the interface edges. The odd-frequency polarized triplets reveal a divergent (Formula presented.) behavior when the Majorana states are decoupled, which is intrinsically connected to their self-conjugation property. The zero-frequency divergence evolves into shifted resonances and linear low-frequency behavior once hybridization occurs. A nonmagnetic interruption in the texture separates the topological superconductor into two topological segments and generates additional inner Majorana modes. When the nonmagnetic barrier is comparable to the inner Majorana states localization length, they hybridize and modify their associated odd-frequency triplet pairing, while the outer edge modes preserve their self-conjugated nature. Tuning the superconducting phase difference further controls the onset of the topological regime and the stability of localized Majorana states. The results highlight the central role of odd-frequency triplet correlations as a probe of topological superconductivity in magnetically engineered JJs. © 2026 The Author(s). physica status solidi (RRL) Rapid Research Letters published by Wiley-VCH GmbH.},

note = {Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{wu_conductance_2026,

title = {Conductance of atomic size contacts of Ag and Au at high magnetic fields},

author = {Beilun Wu and Andrés Martínez and Paula Obladen and Marta Fernández-Lomana and Edwin Herrera-Vasco and Carlos Sabater and J. J. Palacios and I. Guillamón and Hermann J. Suderow},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105028911873&doi=10.1103%2Fcmh2-frmf&partnerID=40&md5=6c87d94b25e24d6201a149c36a288f64},

doi = {10.1103/cmh2-frmf},

issn = {26431564},

year  = {2026},

date = {2026-01-01},

journal = {Physical Review Research},

volume = {8},

number = {1},

publisher = {American Physical Society},

abstract = {Electronic conduction at the atomic scale can be described by Landauer’s formalism. In single-atom point contacts of noble metals like Au and Ag, there is just one channel open between both electrodes and the conductance is very close to the quantum of conductance G≈G<inf>0</inf>=2e$^textrm2$/h, with the factor of two coming from spin degeneracy. The magnetoconductivity of atomic size contacts has been studied for numerous systems, unveiling local Kondo screening, magnetic order, and spin-polarized currents. However, these have been mostly performed in elements with multiple open conduction channels where G differs from G0. The realization of a magnetically active conductor with a single-open channel remains difficult to achieve. Here, we present measurements of the electronic conductance of single-channel Au and Ag atomic size contacts in magnetic fields up to 20 T. We observe a decrease in G which goes up to about 15% in many Au contacts at 20 T. We perform calculations and find that pure Ag and Au do not present a strong field dependence of G, in agreement with previous results at smaller magnetic fields. We also find, however, that residual O<inf>2</inf> molecules attached close to the contact produce an induced spin-polarized current, which leads to a decrease in G. We discuss the role of the magnetic response of the electrodes in the jump-to-contact. Our results suggest that single channel atomic size conductors with a sizable response to a magnetic field can be built by combining noble metals and magnetically active molecular systems. © 2026 authors. Published by the American Physical Society.},

note = {Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{richard_excitonic_2026,

title = {Excitonic oscillator-strength saturation dominates polariton-polariton interactions},

author = {Maxime Richard and Irénée Frérot and Sylvain Ravets and Jacqueline I. Bloch and Carlos Antón-Solanas and Ferdinand Claude and Yueguang Zhou and Martina Morassi and Aristide Lemaître and Iacopo Carusotto and Anna Minguzzi},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105030580274&doi=10.1103%2Fr8m8-hckx&partnerID=40&md5=7f16c28015be4ab6e31a5167c1139e6f},

doi = {10.1103/r8m8-hckx},

issn = {26431564},

year  = {2026},

date = {2026-01-01},

journal = {Physical Review Research},

volume = {8},

number = {1},

publisher = {American Physical Society},

abstract = {Exciton-polaritons in semiconductor microcavities exhibit large two-body interactions that, thanks to ever-refined nanotechnology techniques, are getting closer and closer to the quantum regime where single-photon nonlinearities start being relevant. To foster additional progress in this direction, in this work we experimentally investigate the microscopic mechanism driving polariton-polariton interactions. We measure the dispersion relation of the collective excitations that are thermally generated on top of a coherent fluid of interacting lower polaritons. By comparing the measurements with the Bogoliubov theory over both the lower- and upper-polariton branches simultaneously, we find that polariton-polariton interactions stem dominantly from a mechanism of saturation of the exciton oscillator strength. © 2026 authors. Published by the American Physical Society.},

note = {Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{martinez-pons_temporal_2026,

title = {Temporal Coherence of Single Photons Emitted by Hexagonal Boron Nitride Defects at Room Temperature},

author = {Juan Vidal Martínez-Pons and Sang-kyu Kim and Max Behrens and Alejandro Izquierdo-Molina and Adolfo Menendez Rua and Serkan Paçal and Serkan Ateş and Luis Viña and Carlos Antón-Solanas},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105026662437&doi=10.1021%2Facsphotonics.5c02227&partnerID=40&md5=26aa2f7d587ff60cb9a3b6b0f5ddf686},

doi = {10.1021/acsphotonics.5c02227},

year  = {2026},

date = {2026-01-01},

journal = {ACS Photonics},

volume = {13},

number = {1},

pages = {282 – 289},

publisher = {American Chemical Society},

abstract = {Color centers in hexagonal boron nitride (hBN) emerge as promising quantum light sources at room temperature, with potential applications in quantum communications, among others. The temporal coherence of emitted photons (i.e., their capacity to interfere and distribute photonic entanglement) is essential for many of these applications. Hence, it is crucial to study and determine the temporal coherence of this emission under different experimental conditions. In this work, we report the coherence time of the single photons emitted by an hBN defect in a nanocrystal at room temperature, measured via Michelson interferometry. The visibility of this interference vanishes when the temporal delay between the interferometer arms is a few hundred femtoseconds, highlighting that the phonon dephasing processes are 4 orders of magnitude faster than the spontaneous decay time of the emitter. We also analyze the single photon characteristics of the emission via correlation measurements, defect blinking dynamics, and its Debye–Waller factor. Our room temperature results highlight the presence of a strong electron–phonon coupling, suggesting the need to work at cryogenic temperatures to enable quantum photonic applications based on photon interference. © 2025 The Authors. Published by American Chemical Society},

note = {Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{zunzunegui-bru_hydrophilicity_2026,

title = {Hydrophilicity and topology interplay determines positioning of guest molecules in lipid cubic phases},

author = {Eva Zunzunegui-Bru and Salvatore Assenza and Raffaele Mezzenga},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105014346331&doi=10.1016%2Fj.jcis.2025.138802&partnerID=40&md5=ae836d5379a2bded4a7ec9121b78989f},

doi = {10.1016/j.jcis.2025.138802},

issn = {00219797},

year  = {2026},

date = {2026-01-01},

journal = {Journal of Colloid and Interface Science},

volume = {702},

publisher = {Academic Press Inc.},

abstract = {Lipid nanostructures with inverse bicontinuous cubic symmetries are of paramount importance as delivery structures of active compounds in the pharmaceutical, cosmetic and food science fields. By atomistic molecular dynamics, here we study the internalization of three molecules of varying hydrophilicity, fructose, caffeine and vitamin D, within a cubic phase with primitive symmetry, allowing us to assess how the incorporation of the guest molecule is affected by the interplay between its hydrophilicity and the topology of the host membrane. For lipophilic molecules our results reveal the details of molecular localization and orientation, which allow estimating the bending modulus of the membrane by means of a phenomenological model based on the physics of liquid crystals. For more hydrophilic molecules, we show that the unique topological and geometrical features of bicontinuous cubic phases (BCPs) lead to non-trivial effects on the lipid-water interface, primarily controlled by their curvature, resulting in an enthalpically driven distancing of the guest molecule from the interface. In particular, we detect a preference of hydrophilic molecules to migrate towards the flat points of the lipid-water interface, from which we may infer a preferred onset of nucleation in phase separation processes, such as in membrane-protein crystallization. © 2025},

note = {Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{antonenko_effect_2026,

title = {Effect of quasiparticles on the parameters of a gap-engineered transmon},

author = {Daniil S. Antonenko and Pavel D. Kurilovich and F. J. Matute-Cañadas and Leonid I. Glazman},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105029742824&doi=10.1103%2Ft448-147x&partnerID=40&md5=865291228fdd135672442fc9941788ab},

doi = {10.1103/t448-147x},

issn = {24699950},

year  = {2026},

date = {2026-01-01},

journal = {Physical Review B},

volume = {113},

number = {5},

pages = {054504 – 054504–14},

publisher = {American Physical Society},

abstract = {We evaluate the quasiparticle contribution to the frequency shift and relaxation rates of a transmon with the Josephson junctions connecting superconductors that have unequal energy gaps. The gap difference substantially affects the transmon characteristics. We investigate their dependence on the density and effective temperature of the quasiparticles and on the nominal (unperturbed by the quasiparticles) transmon frequency. At temperatures low compared to the qubit frequency, the gap difference can induce an anomalous positive frequency shift, resulting in a nonmonotonic temperature dependence of the transmon frequency. The qubit relaxation rate exhibits a resonance when the qubit frequency matches the gap difference; the shape of the resonance is strongly temperature dependent. We propose to use these effects to access the details of the quasiparticle energy distribution. © 2026 American Physical Society},

note = {Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{g_cuxart_emergent_2026,

title = {Emergent Magnetic Structures at the 2D Limit of the Altermagnet MnTe},

author = {Marc G Cuxart and Roberto Robles and Beatriz Muñiz Cano and Pierluigi Gargiani and Clara Rebanal and Iolanda Di Bernardo and Alireza Amiri and Fabián Calleja and Manuela Garnica and Miguel Angel Valbuena and Amadeo L Vázquez de Parga},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105019246956&doi=10.1002%2Fadfm.202516924&partnerID=40&md5=c7f81acf03accefb3ffe8a95858fcc6f},

doi = {10.1002/adfm.202516924},

issn = {1616301X},

year  = {2026},

date = {2026-01-01},

journal = {Advanced Functional Materials},

volume = {36},

number = {11},

publisher = {John Wiley and Sons Inc},

abstract = {MnTe has recently emerged as a canonical altermagnet, a newly identified class of magnetism characterized by compensated antiferromagnetic order coexisting with spin-split electronic bands, traditionally considered exclusive to ferromagnets. However, the extent to which altermagnetism persists as altermagnets are thinned to the 2D limit remains largely unexplored. Here, the magnetic behavior of two-dimensional (2D) MnTe is investigated, specifically atomically-thin monolayers (MLs) and bilayers (BLs) grown on graphene/Ir(111) substrate, by combining experimental scanning tunneling microscopy, X-ray photoelectron microscopy, X-ray absorption spectroscopy, and X-ray magnetic circular dichroism with density functional theory calculations. It is found that while ML and BL MnTe adopt atomic structures with symmetries incompatible with altermagnetism, they exhibit intriguing magnetic phases: the BL forms a highly-robust layered antiferromagnet with in-plane spin anisotropy, whereas the ML presents characteristics compatible with spin-glass behavior below its freezing temperature, a phenomenon not previously observed in an atomically thin material. These findings highlight how reduced dimensionality can promote the emergence of unusual magnetic structures distinct from those of their 3D counterparts, providing new insights into low-dimensional magnetism. © 2025 The Author(s). Advanced Functional Materials published by Wiley-VCH GmbH.},

note = {Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{cinacchi_assembly_2026,

title = {The assembly and auto-assembly of hard arcuate particles in R2},

author = {Giorgio Cinacchi},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105030186530&doi=10.1063%2F5.0300000&partnerID=40&md5=110f23faf6de3225c8f570507f93c7d6},

doi = {10.1063/5.0300000},

issn = {00219606},

year  = {2026},

date = {2026-01-01},

journal = {Journal of Chemical Physics},

volume = {164},

number = {6},

publisher = {American Institute of Physics},

abstract = {Systems of hard major circular arcs show a (genuinely entropic) (auto-)assembly. Their densest-known optimal packings have a two-level positionally (and orientationally) ordered structure: first, a specific number of hard major circular arcs are organized into (anti)clockwise optimal roundels; then, these chiral roundels are organized at the sites of a triangular lattice. Their phase behavior, in both the less dense uniform phase and the denser non-uniform phase, is characterized by auto-assembly: first, hard major circular arcs spontaneously organize into (anti)clockwise roundish aggregates, the sub-optimal version of the roundels; then, these chiral roundish aggregates tend to organize into a globally non-chiral cluster hexagonal phase, the sub-optimal version of the densest-known packings. Their infinitesimal thinness prompts one to inquire as to whether this (genuinely entropic) (auto-)assembly is conserved in systems of correspondent hard arcuate particles of finite thinness. Even though finite thinness is detrimental, a number of hard finitely thin arcuate particles can still be organized by analytic constructions and spontaneously organize in Monte Carlo packing calculations into propeller-like roundish aggregates. Thus, instances of such an auto-assembly are observed in statistical-mechanical Monte Carlo numerical simulations of a sufficiently dense system of hard finitely thin arcuate particles but the diversity and persistency of the defective interlocks between the hard finitely thin arcuate particles and the irregularity of their roundish aggregates result in this system remaining in a uniform state. © 2026 Author(s).},

note = {Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{chen_tunable_2026,

title = {Tunable optical matter: electrostatic repulsion modulates near- and far-field gold nanoparticle arrangements},

author = {Jim Jui Kai Chen and Jorge Olmos-Trigo and Boris Louis and Chihhao Huang and Susana Rocha and Hiroshi Masuhara and Johan Hofkens and Rafael Delgado-Buscalioni and Roger Bresolí-Obach and Manuel I. Marqués and Marc Meléndez},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105027255806&doi=10.1039%2Fd5na00926j&partnerID=40&md5=40e4e3b5e5979433d5f457a4c3cdad23},

doi = {10.1039/d5na00926j},

year  = {2026},

date = {2026-01-01},

journal = {Nanoscale Advances},

volume = {8},

number = {4},

pages = {1251 – 1259},

publisher = {Royal Society of Chemistry},

abstract = {The dynamics and equilibrium configurations of immersed optically-bound particles are complex phenomena involving several physical mechanisms such as optical forces, electrostatic interactions, and fluid dynamics. In this work, we unravel, using experiments and numerical simulations, the key role played by short-range electrostatic forces. The repulsive interaction among gold nanoparticles is adjusted by changing the salt concentration. When the electrostatic interaction is reduced, near-field optical binding with particles oriented along the polarization direction is promoted, while, for low values of the salt concentration, inter-particle repulsion induces far-field (FF) optical binding configurations oriented perpendicular to the polarization. The importance of electrostatic force is confirmed by a theoretical model in which the repulsive effect is explicitly tuned. The numerical results reproduce the measured particle configurations and highlight the dominant role of electrostatic interactions, particularly in FF optical binding configurations. This journal is © The Royal Society of Chemistry, 2026},

note = {Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{bastante_experimental_2026,

title = {Experimental and Theoretical Studies of Isomeric Metal (NˆCˆN)Cl Coordination Complexes (Metal = Pt, Pd) with Multiple Conductance Pathways in Single-Molecule Junctions},

author = {Pablo Bastante and Ross J. Davidson and Yahia Chelli and Abdalghani H. S. Daaoub and Pilar Cea and S. Martin and Andrei S. Batsanov and Sara Sangtarash and Hatef Sadeghi and Martin R. Bryce and Nicolás Agraït},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105030660655&doi=10.1021%2Facs.jpcc.5c07119&partnerID=40&md5=670a54d8ee695a83c730640ee6f9a020},

doi = {10.1021/acs.jpcc.5c07119},

issn = {19327447},

year  = {2026},

date = {2026-01-01},

journal = {Journal of Physical Chemistry C},

volume = {130},

number = {7},

pages = {2763 – 2772},

publisher = {American Chemical Society},

abstract = {The present work provides insight into the effect of connectivity within isomeric 3,5-bis(pyridin-2-yl)phenyl (NˆCˆN) platinum and palladium complexes on their electron transmission properties within goldtextbarmoleculetextbargold junctions. The ligands 3,5-bis(4-(methylthio)pyridin-2-yl)phenyl hexanoate (L$^textrmm$H) and 3,5-bis(5-(methylthio)pyridin-2-yl)phenyl hexanoate (L$^textrmp$H) were synthesized and coordinated with either PtCl or PdCl to form complexes Pt$^textrmm$, Pt$^textrmp$, Pd$^textrmm$ and Pd$^textrmp$. X-ray photoelectron spectroscopy (XPS) measurements evaluated the contacting modes of the molecules in the junctions. A combination of scanning tunneling microscopy-break junction (STM-BJ) measurements and density functional theory (DFT) calculations demonstrate that for the single-molecule S···S contacted junctions metal coordination enhanced the conductance compared with the free ligands. Notably, the higher degree of orbital mixing between the metal center and the ligand π-orbitals in the metal complexes plays a greater role than quantum interference to the extent that the complexes that incorporate ligands substituted with thiomethyl groups in meta positions relative to the pyridine-benzene linkages have a higher conductance than their para-analogs, e.g., Pt$^textrmp$ −3.8 log(G/G<inf>0</inf>) and Pt$^textrmm$ −3.3 log(G/G<inf>0</inf>), in contrast to the usual conductance trend (para > meta) for purely organic π-electron systems. © 2026 The Authors. Published by American Chemical Society},

note = {Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{magrinya_membrane-mediated_2026,

title = {Membrane-Mediated Force Transduction Drives Stick-Slip Motion of Lipid Vesicles},

author = {Paula Magrinya and Arin Escobar Ortiz and Juan Luis Aragones and Laura R. Arriaga},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105028964764&doi=10.1002%2Fadvs.202517219&partnerID=40&md5=bc19294a92a95f2d242b1e794372ccd2},

doi = {10.1002/advs.202517219},

year  = {2026},

date = {2026-01-01},

journal = {Advanced Science},

volume = {13},

number = {11},

publisher = {John Wiley and Sons Inc},

abstract = {How internal forces are transduced into motion through soft, fluid membranes remains a fundamental question in the study of active systems. This is investigated using a minimal system: a ferromagnetic particle encapsulated inside a lipid vesicle with controlled membrane composition and phase behavior. A rotating magnetic field drives particle rotation, generating internal flow. This flow propels the particle along the inner membrane leaflet and induces local membrane slip, with regions closer to the particle exhibiting faster motion relative to the substrate. When the particle approaches the vesicle bottom, this slip produces a shear gradient across the lubrication gap, resulting in vesicle propulsion through a stick-slip cycle. Vesicle motion depends on membrane elasticity, excess area, and phase coexistence. Deformations and fluctuations dissipate stress, while line tension deflects the particle and reorients membrane structure. The results demonstrate how lipid membranes mediate force transduction and motion, offering new avenues for the bottom-up design of soft, membrane-based active systems. © 2025 The Author(s). Advanced Science published by Wiley-VCH GmbH.},

note = {Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{fernandez-velayos_study_2026,

title = {Study of M-N-C@FeNPs(M: Fe, Co, Ni) bifunctional electrocatalysts as positive electrodes for rechargeable Zn-air batteries},

author = {Sergio Fernández-Velayos and Adriana Sigüenza and Ricardo Venegas and Eva Mazarío and Nieves Menédez and Francisco Javier Palomares and J. Alvarez and María José Capitán and Pilar Herrasti and Enrique Garcia-Quismondo and Jaime S. Sánchez and Karina Muñoz-Becerra and Francisco Javier Recio},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105026654411&doi=10.1016%2Fj.jpowsour.2025.239164&partnerID=40&md5=91405137f566146a755e5adecb952691},

doi = {10.1016/j.jpowsour.2025.239164},

issn = {03787753},

year  = {2026},

date = {2026-01-01},

journal = {Journal of Power Sources},

volume = {666},

publisher = {Elsevier B.V.},

abstract = {Rechargeable Zn-air batteries are promising energy storage systems. Nevertheless, it is necessary to develop efficient bifunctional OER/ORR catalysts based on non-precious metals. In this work, different M-N-C@Fe<inf>NPs</inf> catalysts were synthesized using Fe<inf>3</inf>O<inf>4</inf> nanoparticles as a template and Fe source. Aniline and different metallic salts (Fe, Co, and Ni) were used as carbon, nitrogen, and metallic precursors. The catalysts were characterized by HRTEM, EDX, XPS, XRD,$^textrm57$Fe Mössbauer spectroscopy, and electrochemical techniques, evidencing the presence of M-Nx units and Fe-based nanoparticles in the N-doped carbon material, where the M-Nx units act as the primary ORR/OER active sites. The electrocatalytic activities, studied using a rotating ring-disk electrode in alkaline media, showed that the Ni-based material presents the best performance, achieving a ΔE value of 0.82 V. The Ni-N-C@Fe<inf>NPs</inf> catalyst was tested as a positive electrode in a Zn-air battery and compared with a commercial PtRuC 20 %. Notably, it displayed a remarkable performance and cyclability, surpassing the commercial catalyst with a round-trip voltage of 1.30 V after 50 h. The improved performance may be associated with the catalytic activity of the Ni-Nx active sites acting in synergy with the Fe-based nanoparticles embedded within the graphitized carbon matrix. © 2025 Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.},

note = {ISBN: 0444894810 

Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{fernandez-martinez_enhanced_2026,

title = {Enhanced exciton-to-trion conversion in monolayer MoS2 via nanometrically localized strain at cryogenic temperature},

author = {Javier Fernández-Martínez and Nikolaos Kyvelos and Herko P. Meulen and Guillermo Lopez-Polin and David Hernández-Pinilla and Pablo Ares and Christos Tserkezis and Mariola O. Ramírez and Luisa E. Bausá},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105027191593&doi=10.1016%2Fj.jlumin.2025.121727&partnerID=40&md5=a29765f6cbe0f806d16f860b494a8409},

doi = {10.1016/j.jlumin.2025.121727},

issn = {00222313},

year  = {2026},

date = {2026-01-01},

journal = {Journal of Luminescence},

volume = {292},

publisher = {Elsevier B.V.},

abstract = {Two-dimensional transition metal dichalcogenides host strongly bound excitonic quasiparticles whose optical response can be tailored by external perturbations. Strain gradients, in particular, provide a powerful route to control exciton-to-trion conversion with nanometric precision, opening opportunities for excitonic circuitry. Here, we probe nanometrically localized strain fields in monolayer MoS<inf>2</inf> transferred onto a linear chain of Ag nanoparticles on LiNbO<inf>3</inf> substrates. The nanoparticle chain induces one-dimensional nanoscale strain gradients in the monolayer while its plasmonic resonance remains spectrally detuned from the MoS<inf>2</inf> excitonic transitions, ensuring that the observed response arises purely from strain-induced effects. Room temperature spatially resolved photoluminescence shows strain-driven modifications of the excitonic response, consistent with the predicted strain distribution. However, at cryogenic temperatures, the trion-to-exciton emission ratio increases significantly, by around an order of magnitude, near the Ag nanoparticle chain. This indicates a highly efficient, nanometrically localized exciton-to-trion conversion mainly driven by the enhanced strain gradients and the increased funneling efficiency at cryogenic temperatures, where the relative role of drift, and hence funneling efficiency, increases. The results provide direct experimental evidence of the effects of nanoscale, strain-driven trion manipulation at low temperature, achieved without the need for electric gates or advanced lithographic patterning, and underscores nanometer-wide wrinkles formed by the nanoparticle chain as a scalable and versatile strain-engineered platform for reconfigurable excitonic devices and quantum optoelectronics. © 2025 Elsevier B.V.},

note = {Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{cabrera_molecular_2026,

title = {Molecular insights into sphingomyelin membrane alterations induced by very long-chain lysophospholipids},

author = {María Isabel Cabrera and Yolanda D. Diego-Otero and R. Yahyaoui and Laura R. Arriaga and Juan Luis Aragones and Pablo Llombart},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105028963154&doi=10.1016%2Fj.jcis.2026.139886&partnerID=40&md5=0b92d5095561986e9efc81779e5f7c88},

doi = {10.1016/j.jcis.2026.139886},

issn = {00219797},

year  = {2026},

date = {2026-01-01},

journal = {Journal of Colloid and Interface Science},

volume = {710},

publisher = {Academic Press Inc.},

abstract = {Hypothesis Lipid membrane structure and mechanics are shaped by the molecular geometry and interactions of their amphiphiles. Very long-chain lysophosphatidylcholines (VLC-LysoPCs), with extended hydrophobic tails, insert into bilayers and perturb packing across leaflets. The VLC-LysoPCs 1-tetracosanoyl- (C24) and 1-hexacosanoyl- (C26) differ in chain length and insertion depth, and are thus expected to differentially modulate bilayer structure and mechanics. When co-incorporated, their distinct insertion depths and conformational behaviors may act cooperatively to reorganize lipid packing and modulate interleaflet coupling in ways unattainable by either species individually. Such synergy may underlie membrane remodeling during pathological VLC-lipid accumulation and offer design principles for synthetic membranes with tunable mechanics. Simulations Atomistic molecular dynamics simulations were performed on sphingomyelin bilayers containing either C24- or C26-LysoPCs, or both co-incorporated. Free energy calculations revealed the insertion mechanisms and thermodynamic profiles of each species. Structural remodeling, conformational dynamics, lipid diffusion, and interleaflet friction were evaluated through equilibrium and non-equilibrium simulations. Findings The insertion free energy of VLC-LysoPCs decreases when both C24 and C26 species are co-present in the sphingomyelin bilayer, indicating a thermodynamically cooperative effect that lowers the energetic cost of further incorporation. While C26 promotes extension of C24, C24 dampens the extension of C26, resulting in mutually modulated conformations that affect membrane packing and facilitate further incorporation. These changes reduced sphingomyelin mobility and decouple membrane leaflets. This is the first report to show that mixtures of VLC-LysoPCs with different chain lengths can cooperatively reshape membrane architecture and mechanics, offering design principles for tailored lipid-based membranes. © 2026 The Author(s)},

note = {Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{rodriguez-tapiador_influence_2026,

title = {Influence of the post-heat treatments on thermal stability of copper nitride deposited in Ar-free sputtering process},

author = {M. Isabel Rodríguez-Tapiador and Javier Grandal and Mario V. Vázquez and Nuria Gordillo and Isadora Berlanga and JM Miguel Asensi and Jesús Merino and Susana Aguilar Fernández},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105030614444&doi=10.1016%2Fj.mssp.2026.110549&partnerID=40&md5=a6f5dec4e177d8d6299f3e305bc1e757},

doi = {10.1016/j.mssp.2026.110549},

issn = {13698001},

year  = {2026},

date = {2026-01-01},

journal = {Materials Science in Semiconductor Processing},

volume = {208},

publisher = {Elsevier Ltd},

abstract = {Copper nitride (Cu<inf>3</inf>N) is considered a very promising and relevant material in applications such as next-generation solar cells, energy storage, microelectronics, and/or optical data storage. This is thanks to its tunable optoelectronic properties, low toxicity, and high electrochemical activity. However, its metastable character, thermodynamically unstable at such relatively low temperatures (100-470 °C), could seriously limit its functionality. In this work, the thermal stability of the Cu<inf>3</inf>N is evaluated after subjecting the material to different post-heat treatments carried out changing the annealing atmospheres, air and vacuum, in a temperature range of 100 to 400 °C. The nitride thin films are fabricated by reactive radio-frequency magnetron sputtering in pure nitrogen at room temperature. After the annealing, the changes in the composition, structural and optoelectronic properties of Cu<inf>3</inf>N are determined. The results show the strong influence of the thermal treatment atmosphere on the film stability, establishing the minimum temperature at which the material begins to decompose. Under the post heat treatment in air, the material remains almost stable up to annealing temperatures close to 200 °C. In this case, important changes in the properties begin to be observed from the appearance of the bubbles on the surface. If the annealing is carried out in vacuum, the properties of the thin films remain practically stable up to 400 °C, significantly increasing its decomposition temperature limit. The results achieve so far clearly open the possibility to noticeably improve the optoelectronic properties and the stability of the Cu<inf>3</inf>N up to temperatures of 400 °C, without compromising its integrity, which would greatly favor its application. © 2026 The Authors},

note = {Type: Article},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{fernandez-alonso_exploring_2025,

title = {Exploring the interplay of Ti-Sn co-doping in photoelectrochemical water splitting of hematite nanowires},

author = {Francisco Javier Fernández-Alonso and Paula Quiterio and Rui Vilarinho and João P. Araújo and Adélio Mendes and Miguel Manso-Silván and Vicente Torres-Costa and Arlete Apolinario and Célia Tavares de Sousa},

url = {https://www.oaepublish.com/articles/energymater.2024.108},

doi = {10.20517/energymater.2024.108},

issn = {ISSN 2770-5900 (Online)},

year  = {2025},

date = {2025-07-01},

urldate = {2026-03-31},

journal = {Energy Materials},

volume = {5},

number = {10},

pages = {N/A–N/A},

publisher = {OAE Publishing Inc.},

abstract = {Photoelectrochemical water splitting is a promising alternative for sustainable energy production, addressing the growing need for clean energy sources. Hematite is a potential semiconductor for this process due to its abundance, low cost, non-toxicity, and stability. However, bare-hematite-based photoelectrochemical cells face challenges such as low photocurrent density, requiring innovative strategies to improve efficiency. This study explores the combined effects of three key approaches: enhancing crystallinity through high-temperature annealing, increasing specific surface area via nanostructuring, and improving photoanode conductivity through heteroatom doping. Hematite nanowires were synthesized using a hydrothermal method, with Ti-doping introduced during hydrothermal synthesis and subsequent Sn co-doping during an 800 °C annealing process, which also improved crystallinity. The introduction of Ti dopant significantly increased the photocurrent density under simulated solar illumination from 0.03 mA·cm-2 to 0.63 mA·cm-2. Co-doping with Ti and Sn further enhanced performance to 1.27 mA·cm-2. The research explores how heteroatom doping influences the properties of hematite and examines its interaction with high-temperature annealing. These findings are significant for advancing the design of efficient nanostructures for energy conversion applications.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}