The vortex solid in high temperature superconductors exhibits several regimes and dynamical behaviors. A temporarily symmetric magnetic ac field (e.g. sinusoidal, square, triangular) can increase the vortex lattice mobility and a temporarily asymmetric one (e.g. sawtooth) can decrease it. In this work, we study the effect on the mobility of the vortex solid as a function of the amplitude of an ac symmetric "shaking" field when it is applied to previously prepared high and low mobility configurations. This study was carried out in high quality twinned YBCO single crystals and vortex mobility was studied through ac susceptibility measurements. © 2004 Elsevier B.V. All rights reserved.
Documento: | Artículo |
Título: | Mobility of solid vortex matter in "shaking" ac magnetic fields of variable amplitude |
Autor: | Moreno, A.J.; Valenzuela, S.O.; Pasquini, G.; Bekeris, V. |
Ciudad: | Rio de Janeiro |
Filiación: | Laboratorio de Bajas Temperaturas, Depto de Física, Pabellón I Cd. Universitaria, CP 1428, Buenos Aires, Argentina Department of Physics, Harvard University, Cambridge, MA 02138, United States |
Palabras clave: | AC susceptibility; Memory effects; YBCO single crystals; AC suseptibility; Memory effects; Vortex lattices (VL); YBCO single crystals; Crystal lattices; Crystal symmetry; Inductance; Magnetic field effects; Single crystals; Twinning; Yttrium barium copper oxides; High temperature superconductors |
Año: | 2004 |
Volumen: | 408-410 |
Número: | 1-4 |
Página de inicio: | 571 |
Página de fin: | 572 |
DOI: | http://dx.doi.org/10.1016/j.physc.2004.03.031 |
Título revista: | Proceedings of the International Conference on Materials |
Título revista abreviado: | Phys C Supercond Appl |
ISSN: | 09214534 |
CODEN: | PHYCE |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214534_v408-410_n1-4_p571_Moreno |