2025-11-01
17:54 |
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2025-10-30
03:50 |
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26 p, 13.8 MB |
Defect modeling in skyrmionic ferromagnetic systems
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Valle Benedí, Nuria del (Universitat Autònoma de Barcelona. Departament de Física) ;
Castell-Queralt, Josep (Universitat Autònoma de Barcelona. Departament de Física) ;
González-Gómez, Leonardo (Universitat Autònoma de Barcelona. Departament de Física) ;
Navau Ros, Carles (Universitat Autònoma de Barcelona. Departament de Física)
Defects are unavoidable in real materials. Defects, either intrinsic or artificially incorporated, can alter the material properties. In the particular case of skyrmionic ferromagnetic materials, defects modify the stability and dynamics of the skyrmions. [...]
2022 -  10.1063/5.0072709
APL materials, Vol. 10, Issue 1 (January 2022) , art. 010702
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2024-02-01
15:35 |
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11 p, 7.4 MB |
Highly cyclable voltage control of magnetism in cobalt ferrite nanopillars for memory and neuromorphic applications
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de h-Óra, Muireann (University of Cambridge) ;
Nicolenco, Aliona (Universitat Autònoma de Barcelona. Departament de Física) ;
Monalisha, P. (Universitat Autònoma de Barcelona. Departament de Física) ;
Maity, Tuhin (Indian Institute of Science Education and Research Thiruvananthapuram) ;
Zhu, Bonan (University College London) ;
Lee, Shinbuhm (University of Cambridge. Daegu Gyeongbuk Institute of Science and Technology) ;
Sun, Zhuotong (University of Cambridge) ;
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ;
Driscoll, Judith (University of Cambridge)
Tuning the properties of magnetic materials by voltage-driven ion migration (magneto-ionics) gives potential for energy-efficient, non-volatile magnetic memory and neuromorphic computing. Here, we report large changes in the magnetic moment at saturation (mS) and coercivity (HC), of 34% and 78%, respectively, in an array of CoFe2O4 (CFO) epitaxial nanopillar electrodes (∼50 nm diameter, ∼70 nm pitch, and 90 nm in height) with an applied voltage of -10 V in a liquid electrolyte cell. [...]
2023 - 10.1063/5.0147665
APL materials, Vol. 11, Issue 5 (May 2023) , art. 051105
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2024-02-01
15:28 |
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11 p, 2.3 MB |
Optimizing magneto-ionic performance in structure/composition-engineered ternary nitrides
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Ma, Zheng (Universitat Autònoma de Barcelona. Departament de Física) ;
Monalisha, P. (Universitat Autònoma de Barcelona. Departament de Física) ;
Tan, Zhengwei (Universitat Autònoma de Barcelona. Departament de Física) ;
Pellicer Vilà, Eva Maria (Universitat Autònoma de Barcelona. Departament de Física) ;
Liedke, Maciej Oskar (Helmholtz-Zentrum Dresden. Institute of Radiation Physics) ;
Butterling, Maik (Helmholtz-Zentrum Dresden. Institute of Radiation Physics) ;
Attallah, Ahmed (Helmholtz-Zentrum Dresden. Institute of Radiation Physics) ;
Hirschmann, Eric (Helmholtz-Zentrum Dresden. Institute of Radiation Physics) ;
Wagner, Andreas (Helmholtz-Zentrum Dresden. Institute of Radiation Physics) ;
Ibrahim, Fatima (University of Grenoble Alpes) ;
Chshiev, Mairbek (University of Grenoble Alpes) ;
Menéndez Dalmau, Enric (Universitat Autònoma de Barcelona. Departament de Física) ;
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Magneto-ionics, an emerging approach to manipulate magnetism that relies on voltage-driven ion motion, holds the promise to boost energy efficiency in information technologies such as spintronic devices or future non-von Neumann computing architectures. [...]
2024 - 10.1016/j.jmat.2023.10.007
Journal of Materiomics, Vol. 10, issue 4 (July 2024) , p. 870-879
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2024-01-25
08:38 |
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13 p, 9.7 MB |
Enhanced Proliferation and Differentiation of Human Osteoblasts by Remotely Controlled Magnetic-Field-Induced Electric Stimulation Using Flexible Substrates
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Careta, Oriol (Universitat Autònoma de Barcelona. Departament de Biologia Cel·lular, de Fisiologia i d'Immunologia) ;
Nicolenco, Aliona (Universitat Autònoma de Barcelona. Departament de Física) ;
Perdikos, Filippos (Institut Català de Nanociència i Nanotecnologia) ;
Blanquer Jerez, Andreu (Universitat Autònoma de Barcelona. Departament de Biologia Cel·lular, de Fisiologia i d'Immunologia) ;
Ibañez, Elena (Universitat Autònoma de Barcelona. Departament de Biologia Cel·lular, de Fisiologia i d'Immunologia) ;
Pellicer Vilà, Eva Maria (Universitat Autònoma de Barcelona. Departament de Física) ;
Stefani, Christina (Universitat Autònoma de Barcelona. Departament de Física) ;
Sepúlveda, Borja (Institut de Microelectrònica de Barcelona) ;
Nogués, Josep (Institut Català de Nanociència i Nanotecnologia) ;
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ;
Nogués, Carme (Universitat Autònoma de Barcelona. Departament de Biologia Cel·lular, de Fisiologia i d'Immunologia)
With the progressive aging of the population, bone fractures are an increasing major health concern. Diverse strategies are being studied to reduce the recovery times using nonaggressive treatments. [...]
2023 - 10.1021/acsami.3c09428
ACS applied materials & interfaces, Vol. 15, Issue 50 (December 2023) , p. 58054-58066
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2023-10-12
07:35 |
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14 p, 13.9 MB |
Accelerated biodegradation of FeMn porous alloy coated with ZnO : Effect on cytocompatibility and antibiofilm properties
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Bartkowska, Aleksandra (Universitat Autònoma de Barcelona. Departament de Física) ;
Turner, Adam Benedict (University of Gothenburg. Department of Biomaterials) ;
Blanquer Jerez, Andreu (Universitat Autònoma de Barcelona. Departament de Biologia Cel·lular, de Fisiologia i d'Immunologia) ;
Nicolenco, Aliona (Centre for Electrochemical Technologies) ;
Trobos, Margarita (University of Gothenburg. Department of Biomaterials) ;
Nogués, Carme (Universitat Autònoma de Barcelona. Departament de Biologia Cel·lular, de Fisiologia i d'Immunologia) ;
Pellicer Vilà, Eva Maria (Universitat Autònoma de Barcelona. Departament de Física) ;
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Fe-based alloys are being studied as potential candidates for biodegradable implants; however, their degradation rates remain too slow. To accelerate biodegradation while simultaneously hindering biofilm formation, a ZnO coating was deposited onto porous equiatomic FeMn alloy discs by sol-gel method using dip coating. [...]
2023 - 10.1016/j.surfcoat.2023.129886
Surface and coatings technology, Vol. 471 (October 2023) , art. 129886
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2023-09-28
07:27 |
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8 p, 1.7 MB |
A Multilevel Magnetic Synapse Based on Voltage-Tuneable Magnetism by Nitrogen Ion Migration
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Monalisha, P. (Universitat Autònoma de Barcelona. Departament de Física) ;
Ma, Zheng (Universitat Autònoma de Barcelona. Departament de Física) ;
Pellicer Vilà, Eva Maria (Universitat Autònoma de Barcelona. Departament de Física) ;
Menéndez Dalmau, Enric (Universitat Autònoma de Barcelona. Departament de Física) ;
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Advanced synaptic devices with simultaneous memory and processor capabilities are envisaged as core elements of neuromorphic computing (NC) for low-power artificial intelligence. So far, most synaptic devices are based on resistive memories, where the device resistance is tuned with applied voltage or current. [...]
2023 - 10.1002/aelm.202300249
Advanced Electronic Materials, Vol. 9, Issue 8 (August 2023) , art. 2300249
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2023-09-07
04:59 |
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12 p, 8.1 MB |
Silver-induced γ→ε martensitic transformation in FeMn alloys : an experimental and computational study
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Bartkowska, Aleksandra (Universitat Autònoma de Barcelona. Departament de Física) ;
Lekka, Christina (University of Ioannina. Department of Materials Science and Engineering) ;
Ludovico, Andrea Alberta (Leibniz-Institut für Festkörper- und Werkstoffforschung) ;
Spasojevic, Irena (Universitat Autònoma de Barcelona. Departament de Física) ;
Pellicer Vilà, Eva Maria (Universitat Autònoma de Barcelona. Departament de Física) ;
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Porous FeMn alloys with additions of 0, 1, 3 and 5 wt. % of Ag were fabricated using powder metallurgy and sintering. The microstructure of the fabricated alloys was characterized using X-ray diffraction, transmission electron microscopy and selected area electron diffraction. [...]
2023 - 10.1016/j.jallcom.2023.171640
Journal of alloys and compounds, Vol. 966 (Dec. 2023) , art. 171640
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2023-02-22
16:49 |
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19 p, 407.0 KB |
Fabrication of hybrid nanocrystalline Al-Ti alloys by mechanical bonding through high-pressure torsion
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Bazarnik, Piotr (Warsaw University of Technology) ;
Bartkowska, Aleksandra (Universitat Autònoma de Barcelona. Departament de Física) ;
Huang, Yi (Bournemouth University. Department of Design and Engineering) ;
Szlązak, Karol (Warsaw University of Technology) ;
Adamczyk-Cieślak, Bogusława (Warsaw University of Technology) ;
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ;
Lewandowska, Malgorzata (Warsaw University of Technology) ;
Langdon, Terence G. (University of Southampton. Department of Mechanical Engineering)
This study demonstrates an approach of utilizing high-pressure torsion (HPT) to fabricate a novel hybrid material by the direct bonding of Al and Ti disks at room temperature under a compressive pressure of 6. [...]
2022 - 10.1016/j.msea.2021.142549
Materials science & engineering. Structural materials: properties, microstructures and processing, Vol. 833 (January 2022) art. 142549
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2023-02-22
16:39 |
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15 p, 793.3 KB |
Voltage-driven strain-mediated modulation of exchange bias in Ir20Mn80/Fe80Ga20/Ta/<011>-oriented PMN-32PT heterostructures
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Demirci, Erdem (Universitat Autònoma de Barcelona. Departament de Física) ;
de Rojas, Julius (Universitat Autònoma de Barcelona. Departament de Física) ;
Quintana Puebla, Alberto (Institut de Ciència de Materials de Barcelona) ;
Fina, Ignasi (Institut de Ciència de Materials de Barcelona) ;
Menéndez Dalmau, Enric (Universitat Autònoma de Barcelona. Departament de Física) ;
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Manipulation of exchange bias with electric field is appealing to boost energy efficiency in spintronic devices. Here, this effect is shown at room temperature in Ir20Mn80/Fe80Ga20/Ta layers grown onto ⟨011⟩-oriented PMN-32PT single crystals. [...]
2022 - 10.1063/5.0091231
Applied physics letters, Vol. 120, Issue 14 (April 2022) , art. 142406
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