Plasticity and memory effects in the vortex solid phase of twinned YBa2Cu3O7 single crystals

We report on marked memory effects in the vortex system of twinned YBa2Cu3O7 single crystals observed in ac susceptibility measurements. We show that the vortex system can be trapped in different metastable states with variable degree of order arising in response to different system histories. The p...

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Publicado: 2000
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v84_n18_p4200_Valenzuela
http://hdl.handle.net/20.500.12110/paper_00319007_v84_n18_p4200_Valenzuela
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00319007_v84_n18_p4200_Valenzuela
record_format dspace
spelling paper:paper_00319007_v84_n18_p4200_Valenzuela2023-06-08T14:58:30Z Plasticity and memory effects in the vortex solid phase of twinned YBa2Cu3O7 single crystals We report on marked memory effects in the vortex system of twinned YBa2Cu3O7 single crystals observed in ac susceptibility measurements. We show that the vortex system can be trapped in different metastable states with variable degree of order arising in response to different system histories. The pressure exerted by the oscillating ac field assists the vortex system in ordering, locally reducing the critical current density in the penetrated outer zone of the sample. The robustness of the ordered and disordered states together with the spatial profile of the critical current density lead to the observed memory effects. © 2000 The American Physical Society. 2000 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v84_n18_p4200_Valenzuela http://hdl.handle.net/20.500.12110/paper_00319007_v84_n18_p4200_Valenzuela
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 report on marked memory effects in the vortex system of twinned YBa2Cu3O7 single crystals observed in ac susceptibility measurements. We show that the vortex system can be trapped in different metastable states with variable degree of order arising in response to different system histories. The pressure exerted by the oscillating ac field assists the vortex system in ordering, locally reducing the critical current density in the penetrated outer zone of the sample. The robustness of the ordered and disordered states together with the spatial profile of the critical current density lead to the observed memory effects. © 2000 The American Physical Society.
title Plasticity and memory effects in the vortex solid phase of twinned YBa2Cu3O7 single crystals
spellingShingle Plasticity and memory effects in the vortex solid phase of twinned YBa2Cu3O7 single crystals
title_short Plasticity and memory effects in the vortex solid phase of twinned YBa2Cu3O7 single crystals
title_full Plasticity and memory effects in the vortex solid phase of twinned YBa2Cu3O7 single crystals
title_fullStr Plasticity and memory effects in the vortex solid phase of twinned YBa2Cu3O7 single crystals
title_full_unstemmed Plasticity and memory effects in the vortex solid phase of twinned YBa2Cu3O7 single crystals
title_sort plasticity and memory effects in the vortex solid phase of twinned yba2cu3o7 single crystals
publishDate 2000
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v84_n18_p4200_Valenzuela
http://hdl.handle.net/20.500.12110/paper_00319007_v84_n18_p4200_Valenzuela
_version_ 1768546619304706048

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