Resultados globales: 35 registros encontrados en 0.02 segundos.
Artículos, Encontrados 32 registros
Documentos de investigación, Encontrados 3 registros
Artículos Encontrados 32 registros  1 - 10siguientefinal  ir al registro:
1.
30 p, 3.1 MB Origin of large negative electrocaloric effect in antiferroelectric PbZr O3 / Vales Castro, Pablo (Institut Català de Nanociència i Nanotecnologia) ; Faye, Romain (Luxembourg Institute of Science and Technology. Materials Research and Technology Department) ; Vellvehi, Miquel (Institut de Microelectrònica de Barcelona) ; Nouchokgwe, Youri (University of Luxembourg) ; Perpiñà, Xavier (Institut de Microelectrònica de Barcelona) ; Caicedo Roque, Jose Manuel (Institut Català de Nanociència i Nanotecnologia) ; Jordà, Xavier (Institut de Microelectrònica de Barcelona) ; Roleder, Krystian (University of Silesia in Katowice. Institute of Physics) ; Kajewski, Dariusz (University of Silesia in Katowice. Institute of Physics) ; Perez-Tomas, Amador (Institut Català de Nanociència i Nanotecnologia) ; Defay, Emmanuel (Luxembourg Institute of Science and Technology. Materials Research and Technology Department) ; Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia)
We have studied the electrocaloric response of the archetypal antiferroelectric PbZrO3 as a function of voltage and temperature in the vicinity of its antiferroelectric-paraelectric phase transition. [...]
2021 - 10.1103/PhysRevB.103.054112
Physical review B, Vol. 103 Núm. 5 (Feb. 2021) , art. 54112  
2.
12 p, 510.0 KB A flexoelectric microelectromechanical system on silicon / Bhaskar, Umesh K. (Institut Català de Nanociència i Nanotecnologia) ; Banerjee, Nirupam (University of Twente. Faculty of Science and Technology) ; Abdollahi, Amir (Institut Català de Nanociència i Nanotecnologia) ; Wang, Zhe (Cornell University. Department of Materials Science and Engineering) ; Schlom, Darrell G. (Cornell University. Department of Materials Science and Engineering) ; Rijnders, Guus (University of Twente. Faculty of Science and Technology) ; Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia)
Flexoelectricity allows a dielectric material to polarize in response to a mechanical bending moment and, conversely, to bend in response to an electric field. Compared with piezoelectricity, flexoelectricity is a weak effect of little practical significance in bulk materials. [...]
2016 - 10.1038/nnano.2015.260
Nature Nanotechnology, Vol. 11, issue 3 (March 2016) , p. 263-266  
3.
28 p, 1.8 MB Self-pixelation through fracture in VO2 thin films / 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, 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  
4.
24 p, 1.2 MB Non-linear nanoscale piezoresponse of single ZnO nanowires affected by piezotronic effect / Lozano, Helena (Instituto de Microelectrónica 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  
5.
12 p, 5.5 MB Mechanical softness of ferroelectric 180° domain walls / 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  
6.
12 p, 2.8 MB Control of lateral composition distribution in graded films of soluble solid systems A1-xBx by partitioned dual-beam pulsed laser deposition / Sakai, Joe (Institut Català de Nanociència i Nanotecnologia) ; Caicedo Roque, Jose Manuel (Institut Català de Nanociència i Nanotecnologia) ; Vales Castro, Pablo (Institut Català de Nanociència i Nanotecnologia) ; Padilla-Pantoja, Jessica (Institut Català de Nanociència i Nanotecnologia) ; Sauthier, Guillaume (Institut Català de Nanociència i Nanotecnologia) ; Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia) ; Santiso, José (Institut Català de Nanociència i Nanotecnologia)
Lateral compositionally-graded thin films are powerful media for the observation of phase boundaries aswell as for high-throughputmaterials exploration. We herein propose amethod to prepare epitaxial lateral compositionally-graded films using a dual-beampulsed laser deposition (PLD)method with two targets separated by a partition. [...]
2020 - 10.3390/COATINGS10060540
Coatings, Vol. 10, issue 6 (June 2020) , art. 540  
7.
35 p, 32.3 MB Strain-Engineered Ferroelastic Structures in PbTiO3 Films and Their Control by Electric Fields / 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  
8.
3 p, 121.6 KB James F. Scott (1942-2020) / Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia) ; Dawber, Matthew (Stony Brook University. Department of Physics and Astronomy) ; Gregg, Marty (Queen's University Belfast. School of Mathematics and Physics) ; Morrison, Finlay (University of St Andrews. School of Chemistry) ; Ramesh, Ramamoorthy (University of California (Berkeley, Califòrnia)) ; Zubko, Pavlo (University College London)
Obituari de James F. Soctt.
2020 - 10.1038/s41563-020-0692-x
Nature materials, Vol. 19, issue 6 (June 2020) , p. 580  
9.
9 p, 407.5 KB Temperature-dependent polarization in a non-polar crystal / Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia) ; Noheda, Beatriz (Zernike Institute for Advanced Materials)
2019 - 10.1038/d41586-019-03494-4
Nature, Vol. 575, issue 7784 (Nov. 2019) , p. 600-602  
10.
5 p, 445.5 KB Piezoelectric Mimicry of Flexoelectricity / Abdollahi, Amir (Universitat Politècnica de Catalunya) ; Vásquez Sancho, Fabián (Institut Català de Nanociència i Nanotecnologia) ; Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia)
The origin of "giant" flexoelectricity, orders of magnitude larger than theoretically predicted, yet frequently observed, is under intense scrutiny. There is mounting evidence correlating giant flexoelectriclike effects with parasitic piezoelectricity, but it is not clear how piezoelectricity (polarization generated by strain) manages to imitate flexoelectricity (polarization generated by strain gradient) in typical beam-bending experiments, since in a bent beam the net strain is zero. [...]
2018 - 10.1103/PhysRevLett.121.205502
Physical review letters, Vol. 121, Issue 20 (November 2018) , art. 205502  

Artículos : Encontrados 32 registros   1 - 10siguientefinal  ir al registro:
Documentos de investigación Encontrados 3 registros  
1.
129 p, 3.7 MB Flexoelectricity in biomaterials / Vásquez Sancho, Fabián ; Catalan Bernabé, Gustau, dir. ; Sort Viñas, Jordi, dir. ; Universitat Autònoma de Barcelona. Departament de Física ; Institut Català de Nanociència i Nanotecnologia (ICN2)
La flexoelectricidad es la capacidad de los materiales para generar electricidad al deformarse de forma no homogénea. Es una propiedad de todos los materiales y, en principio, posible que existiera en biomateriales. [...]
Flexoelectricity is the ability of materials to generate electricity upon being bent, or, more generally, upon being inhomogeneously deformed. It is a property that is allowed by symmetry in all materials and, therefore, it was in principle possible that it existed in biomaterials -one precedent existed for their observation in inner-ear stereocilia, in fact, pointing to its importance for acousto-electric transduction in mammalian hearing. [...]

[Bellaterra] : Universitat Autònoma de Barcelona, 2018.  
2.
117 p, 2.0 MB Effect of flexoelectricity on the nano-mechanical properties of ferroelectrics / Kumara Cordero, Edwards ; Catalan Bernabe, Gustau, dir. ; Domingo Marimon, Neus, dir. ; Sort Viñas, Jordi, dir. ; Universitat Autònoma de Barcelona. Departament de Física ; Institut Català de Nanociència i Nanotecnologia (ICN2)
Los materiales ferroeléctricos pueden tener diferentes respuestas electromecánicas, por ejemplo la piezoelectricidad, polarización inducida cuando hay deformación homogénea, y la flexoelectricidad, polarización inducida cuando hay deformación inhomogénea. [...]
Ferroelectric materials can present various electromechanical responses. These include electrostriction (strain proportional to the square of the electric field) piezoelectricity (polarization induced by a strain), and flexoelectricity (polarization induced by a strain gradient). [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2018.  
3.
110 p, 3.0 MB Flexoelectricity in single crystals / Narvaez Morales, Jackeline ; Catalan Bernabé, Gustau, dir. ; Domingo Marimon, Neus ; Universitat Autònoma de Barcelona. Departament de Física
En términos generales, la flexoelectricidad es la respuesta de la polarización a un gradiente de deformación. A diferencia del efecto piezoeléctrico, este efecto está presente en todos los materiales independientemente de su estructura cristalina. [...]
In general terms, flexoelectricity is the response of polarization to a strain gradient. In contrast to the piezoelectric effect, this effect is present in all materials regardless of their crystal structure. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2016  

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