Spatially Resolved Dynamic Correlation in the Vortex State of High Temperature Superconductors

Autor:	Daniel Lopez, W. K. Kwok, A. M. Petrean, G. W. Crabtree, Hugo Safar, R. J. Olsson, Lisa Paulius
Rok vydání:	1999
Předmět:	Physics High-temperature superconductivity Condensed matter physics Contact geometry General Physics and Astronomy Vortex state Magnetic flux law.invention Vortex symbols.namesake Transverse plane law Condensed Matter::Superconductivity symbols Spatial dependence Lorentz force
Zdroj:	Physical Review Letters. 82:1277-1280
ISSN:	1079-7114 0031-9007
DOI:	10.1103/physrevlett.82.1277
Popis:	We report transport measurements in the mixed state of YBa{sub 2}Cu {sub 3}O{sub 7{minus}{delta}} single crystals using a contact geometry which enables control of the gradient of the Lorentz force acting on the vortices. The spatial dependence of the vortex velocity profile in the liquid and solid vortex phases is resolved providing information about the transverse dynamic correlation of vortices. While in the liquid phase the vortices respond locally to the driving force, in the solid regime they show long range velocity correlation over macroscopic distances. At high driving force gradients, vortex-vortex shear stresses exceed the elastic limit and the dynamics is characterized by plastic motion. {copyright} {ital 1999} {ital The American Physical Society}
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d4fe18f8738f440f2cc0064950f27a51 https://doi.org/10.1103/physrevlett.82.1277 Zobrazit plný text záznamu