Depinning and dynamics of ac driven vortex lattices in random media

We study the different dynamical regimes of a vortex lattice driven by ac forces in the presence of random pinning via numerical simulations. The behavior of the different observables is characterized as a function of the applied force amplitude for different frequencies. We discuss the inconvenienc...

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Autores principales: Pérez Daroca, Diego Raúl, Pasquini, Gabriela, Bekeris, Victoria Isabel
Publicado: 2010
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v81_n18_p_Daroca
http://hdl.handle.net/20.500.12110/paper_10980121_v81_n18_p_Daroca
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_10980121_v81_n18_p_Daroca
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spelling paper:paper_10980121_v81_n18_p_Daroca2023-06-08T16:07:46Z Depinning and dynamics of ac driven vortex lattices in random media Pérez Daroca, Diego Raúl Pasquini, Gabriela Bekeris, Victoria Isabel We study the different dynamical regimes of a vortex lattice driven by ac forces in the presence of random pinning via numerical simulations. The behavior of the different observables is characterized as a function of the applied force amplitude for different frequencies. We discuss the inconveniences of using the mean velocity to identify the depinning transition and we show that instead, the mean quadratic displacement of the lattice is the relevant magnitude to characterize different ac regimes. We discuss how the results depend on the initial configuration and we identify hysteretic effects which are absent in the dc driven systems. © 2010 The American Physical Society. Fil:Daroca, D.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Pasquini, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bekeris, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v81_n18_p_Daroca http://hdl.handle.net/20.500.12110/paper_10980121_v81_n18_p_Daroca
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description We study the different dynamical regimes of a vortex lattice driven by ac forces in the presence of random pinning via numerical simulations. The behavior of the different observables is characterized as a function of the applied force amplitude for different frequencies. We discuss the inconveniences of using the mean velocity to identify the depinning transition and we show that instead, the mean quadratic displacement of the lattice is the relevant magnitude to characterize different ac regimes. We discuss how the results depend on the initial configuration and we identify hysteretic effects which are absent in the dc driven systems. © 2010 The American Physical Society.
author Pérez Daroca, Diego Raúl
Pasquini, Gabriela
Bekeris, Victoria Isabel
spellingShingle Pérez Daroca, Diego Raúl
Pasquini, Gabriela
Bekeris, Victoria Isabel
Depinning and dynamics of ac driven vortex lattices in random media
author_facet Pérez Daroca, Diego Raúl
Pasquini, Gabriela
Bekeris, Victoria Isabel
author_sort Pérez Daroca, Diego Raúl
title Depinning and dynamics of ac driven vortex lattices in random media
title_short Depinning and dynamics of ac driven vortex lattices in random media
title_full Depinning and dynamics of ac driven vortex lattices in random media
title_fullStr Depinning and dynamics of ac driven vortex lattices in random media
title_full_unstemmed Depinning and dynamics of ac driven vortex lattices in random media
title_sort depinning and dynamics of ac driven vortex lattices in random media
publishDate 2010
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v81_n18_p_Daroca
http://hdl.handle.net/20.500.12110/paper_10980121_v81_n18_p_Daroca
work_keys_str_mv AT perezdarocadiegoraul depinninganddynamicsofacdrivenvortexlatticesinrandommedia
AT pasquinigabriela depinninganddynamicsofacdrivenvortexlatticesinrandommedia
AT bekerisvictoriaisabel depinninganddynamicsofacdrivenvortexlatticesinrandommedia
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