1.
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9 p, 3.3 MB |
Oxidation processes at the surface of BaTiO3 thin films under environmental conditions
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Spasojevic, Irena (Universitat Autònoma de Barcelona. Departament de Química) ;
Sauthier, Guillaume (Institut Català de Nanociència i Nanotecnologia) ;
Caicedo Roque, Jose Manuel (Institut Català de Nanociència i Nanotecnologia) ;
Verdaguer Prats, Albert (Institut de Ciència de Materials de Barcelona) ;
Domingo Marimon, Neus (Institut Català de Nanociència i Nanotecnologia)
Dissociation and adsorption of water on ferroelectric oxide surfaces play important role in the processes of screening and switching dynamics of ferroelectric polarization, as well as in catalytic processes which can be additionally coupled with light, temperature or vibration stimuli. [...]
2021 - 10.1016/j.apsusc.2021.150288
Applied surface science, Vol. 565 (Nov. 2021) , art. 150288
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2.
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7 p, 4.6 MB |
Local and correlated studies of humidity-mediated ferroelectric thin film surface charge dynamics
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Gaponenko, Iaroslav (G.W. Woodruff School of Mechanical Engineering) ;
Musy, Loïc (University of Geneva. Department of Quantum Matter Physics) ;
Domingo Marimon, Neus (Institut Català de Nanociència i Nanotecnologia) ;
Stucki, Nicolas (University of Applied Sciences and Arts Western Switzerland) ;
Verdaguer Prats, Albert (Institut de Ciència de Materials de Barcelona) ;
Bassiri-Gharb, Nazarin (G.W. Woodruff School of Mechanical Engineering) ;
Paruch, Patrycja (University of Geneva. Department of Quantum Matter Physics)
Electrochemical phenomena in ferroelectrics are of particular interest for catalysis and sensing applications, with recent studies highlighting the combined role of the ferroelectric polarisation, applied surface voltage and overall switching history. [...]
2021 - 10.1038/s41524-021-00615-4
npj Computational Materials, Vol. 7 (2021) , art. 163
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3.
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13 p, 3.7 MB |
Voltage control of magnetism with magneto-ionic approaches : beyond voltage-driven oxygen ion migration
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de Rojas, Julius (Universitat Autònoma de Barcelona. Departament de Física) ;
Quintana Romero, Alberto (Institut de Ciència de Materials de Barcelona) ;
Rius, Gemma (Institut de Microelectrònica de Barcelona) ;
Stefani, Christina (Institut Català de Nanociència i Nanotecnologia) ;
Domingo Marimon, Neus (Institut Català de Nanociència i Nanotecnologia) ;
Costa-Krämer, José L. (Consejo Superior de Investigaciones Científicas (Espanya).Instituto de Micro y Nanotecnología) ;
Menéndez Dalmau, Enric (Universitat Autònoma de Barcelona. Departament de Física) ;
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Magneto-ionics is an emerging field in materials science where voltage is used as an energy-efficient means to tune magnetic properties, such as magnetization, coercive field, or exchange bias, by voltage-driven ion transport. [...]
2022 - 10.1063/5.0079762
Applied Physics Letters, Vol. 120, issue 7 (Feb. 2022) , art. 70501
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4.
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9 p, 2.4 MB |
Effect of humidity on the writing speed and domain wall dynamics of ferroelectric domains
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Spasojevic, Irena (Universitat Autònoma de Barcelona. Departament de Química) ;
Verdaguer Prats, Albert (Institut de Ciència de Materials de Barcelona) ;
Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia) ;
Domingo Marimon, Neus (Institut Català de Nanociència i Nanotecnologia)
The switching dynamics of ferroelectric polarization under electric fields depends on the availability of screening charges in order to stabilize the switched polarization. In ferroelectrics, thin films with exposed surfaces investigated by piezoresponse force microscopy (PFM), the main source of external screening charges is the atmosphere and the water neck, and therefore relative humidity (RH) plays a major role. [...]
2022 - 10.1002/aelm.202100650
Advanced Electronic Materials, Vol. 8, issue 6 (June 2022) , art. 2100650
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5.
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23 p, 5.0 MB |
Progress on emerging ferroelectric materials for energy harvesting, storage and conversion
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Wei, Xiankui (Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons (Jülich, Alemanya)) ;
Domingo Marimon, Neus (Institut Català de Nanociència i Nanotecnologia) ;
Sun, Young (Chongqing University. Department of Applied Physics) ;
Balke, Nina (North Carolina State University. Department of Materials Science and Engineering) ;
Dunin-Borkowski, Rafal E. (Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons (Jülich, Alemanya)) ;
Mayer, Joachim (RWTH Aachen University. Central Facility for Electron Microscopy)
Since the discovery of Rochelle salt a century ago, ferroelectric materials have been investigated extensively due to their robust responses to electric, mechanical, thermal, magnetic, and optical fields. [...]
2022 - 10.1002/aenm.202201199
Advanced Energy Materials, Vol. 12, issue 24 (June 2022) , art. 2201199
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6.
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28 p, 1.8 MB |
Self-pixelation through fracture in VO2 thin films
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Rodríguez Domínguez, Laura (Institut Català de Nanociència i Nanotecnologia) ;
Del Corro, Elena (Institut Català de Nanociència i Nanotecnologia) ;
Conroy, Michele (University of Limerick. Department of Physics) ;
Moore, Kalani (University of Limerick. Department of Physics) ;
Sandiumenge Ortiz, Felip (Institut de Ciència de Materials de Barcelona) ;
Domingo Marimon, Neus (Institut de Ciència de Materials de Barcelona) ;
Santiso, José (Institut Català de Nanociència i Nanotecnologia) ;
Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia)
Vanadium dioxide (VO2) is an archetypal Mott material with a metal-insulator transition (MIT) at near room temperature. In thin films, this transition is affected by substrate-induced strain but as film thickness increases, the strain is gradually relaxed and the bulk properties are recovered. [...]
2020 - 10.1021/acsaelm.0c00199
ACS applied electronic materials, Vol. 2, issue 5 (May 2020) , p. 1433-1439
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7.
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27 p, 958.3 KB |
Interfacial engineering of metal oxides for highly stable halide perovskite solar cells
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Mingorance, Alba (Institut Català de Nanociència i Nanotecnologia) ;
Xie, Haibing (Institut Català de Nanociència i Nanotecnologia) ;
Kim, Hui-Seon (Ecole Polytechnique Fédérale de Lausanne. Institute of Chemical Sciences and Engineering) ;
Wang, Zaiwei (Ecole Polytechnique Fédérale de Lausanne. Institute of Chemical Sciences and Engineering) ;
Balsells, Marc (Institut Català de Nanociència i Nanotecnologia) ;
Morales Melgares, Anna (Institut Català de Nanociència i Nanotecnologia) ;
Domingo Marimon, Neus (Institut Català de Nanociència i Nanotecnologia) ;
Kazuteru, Nonomura (Ecole Polytechnique Fédérale de Lausanne. Institute of Chemical Sciences and Engineering) ;
Tress, Wolfgang (Ecole Polytechnique Fédérale de Lausanne. Institute of Chemical Sciences and Engineering) ;
Fraxedas, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Vlachopoulos, Nick (Ecole Polytechnique Fédérale de Lausanne. Institute of Chemical Sciences and Engineering) ;
Hagfeldt, Anders (Ecole Polytechnique Fédérale de Lausanne. Institute of Chemical Sciences and Engineering) ;
Lira-Cantu, Monica (Institut Català de Nanociència i Nanotecnologia)
Oxides employed in halide perovskite solar cells (PSCs) have already demonstrated to deliver enhanced stability, low cost, and the ease of fabrication required for the commercialization of the technology. [...]
2018 - 10.1002/admi.201800367
Advanced materials interfaces, Vol. 5, issue 22 (Nov. 2018) , art. 1800367
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8.
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24 p, 1.2 MB |
Non-linear nanoscale piezoresponse of single ZnO nanowires affected by piezotronic effect
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Lozano, Helena (Institut de Microelectrònica de Barcelona) ;
Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia) ;
Esteve, Jaume (Institut de Microelectrònica de Barcelona) ;
Domingo Marimon, Neus (Institut Català de Nanociència i Nanotecnologia) ;
Murillo, Gonzalo (Institut de Microelectrònica de Barcelona)
Zinc oxide (ZnO) nanowires (NWs) as semiconductor piezoelectric nanostructures have emerged as material of interest for applications in energy harvesting, photonics, sensing, biomedical science, actuators or spintronics. [...]
2021 - 10.1088/1361-6528/abb972
Nanotechnology, Vol. 32, issue 2 (Jan. 2021) , art. 025202
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9.
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12 p, 5.5 MB |
Mechanical softness of ferroelectric 180° domain walls
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Stefani, Christina (Institut Català de Nanociència i Nanotecnologia) ;
Ponet, Louis (Scuola Normale Superiore (Pisa, Itàlia)) ;
Shapovalov, Konstantin (Institut de Ciència de Materials de Barcelona) ;
Chen, Peng (Italian Institute of Technology) ;
Langenberg, Eric (Cornell University. Department of Materials Science and Engineering) ;
Schlom, Darrell G. (Kavli Institute at Cornell for Nanoscale Science) ;
Artyukhin, Sergey (Italian Institute of Technology) ;
Stengel, Massimiliano (Institució Catalana de Recerca i Estudis Avançats) ;
Domingo Marimon, Neus (Institut Català de Nanociència i Nanotecnologia) ;
Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia)
Using scanning probe microscopy, we measure the out-of-plane mechanical response of ferroelectric 180° domain walls and observe that, despite separating domains that are mechanically identical, the walls appear mechanically distinct-softer-compared to the domains. [...]
2020 - 10.1103/PhysRevX.10.041001
Physical Review, Vol. 10, issue 4 (Oct.-Des. 2020) , art. 041001
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10.
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35 p, 32.3 MB |
Strain-Engineered Ferroelastic Structures in PbTiO3 Films and Their Control by Electric Fields
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Langenberg, Eric (Cornell University) ;
Paik, Hanjong (Cornell University) ;
Smith, Eva H. (Cornell University) ;
Nair, Hari P. (Cornell University) ;
Hanke, Isabelle (Leibniz-Institut für Kristallzüchtung) ;
Ganschow, Steffen (Leibniz-Institut für Kristallzüchtung) ;
Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia) ;
Domingo Marimon, Neus (Institut Català de Nanociència i Nanotecnologia) ;
Schlom, Darrell G. (Kavli Institute at Cornell for Nanoscale Science)
We study the interplay between epitaxial strain, film thickness, and electric field in the creation, modification, and design of distinct ferroelastic structures in PbTiO thin films. Strain and thickness greatly affect the structures formed, providing a two-variable parameterization of the resulting self-assembly. [...]
2020 - 10.1021/acsami.0c04381
ACS applied materials & interfaces, Vol. 12, Issue 18 (May 2020) , p. 20691-20703
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