Spatially resolved dynamic correlation in the vortex state of high temperature superconductors

Daniel López; W. K. Kwok; H. Safar; R. J. Olsson; A. M. Petrean; L. Paulius; G. W. Crabtree

doi:10.1103/PhysRevLett.82.1277

Spatially resolved dynamic correlation in the vortex state of high temperature superconductors

Daniel López, W. K. Kwok, H. Safar, R. J. Olsson, A. M. Petrean, L. Paulius, G. W. Crabtree

Electrical Engineering

Research output: Contribution to journal › Article › peer-review

87 Scopus citations

Abstract

We report transport measurements in the mixed state of YBa₂Cu₃O₇-δ 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.

Original language	English (US)
Pages (from-to)	1277-1280
Number of pages	4
Journal	Physical review letters
Volume	82
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.82.1277
State	Published - 1999

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.82.1277

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title = "Spatially resolved dynamic correlation in the vortex state of high temperature superconductors",

abstract = "We report transport measurements in the mixed state of YBa2Cu3O7-δ 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.",

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AU - Kwok, W. K.

AU - Safar, H.

AU - Olsson, R. J.

AU - Petrean, A. M.

AU - Paulius, L.

AU - Crabtree, G. W.

PY - 1999

Y1 - 1999

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AB - We report transport measurements in the mixed state of YBa2Cu3O7-δ 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.

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JO - Physical review letters

JF - Physical review letters

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Spatially resolved dynamic correlation in the vortex state of high temperature superconductors

Abstract

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