Relaxation of the remanent state in thin superconducting samples

Y. Radzyner; A. Shaulov; Y. Yeshurun

doi:10.1016/S0921-4526(99)02372-8

Relaxation of the remanent state in thin superconducting samples

Y. Radzyner, A. Shaulov, Y. Yeshurun

Department of Physics

Bar-Ilan University

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

1 Scopus citations

Abstract

We report the importance of the induction planar component B_x in the relaxation of the remanent state in thin superconducting samples. Analysis based on the one-dimensional rate equation for thermally activated flux motion, which considers only the normal component B_z, yields unphysical divergence of the average flux line velocity as the neutral line is approached. Two-dimensional analysis resolves this problem and yields a modified scenario for the flux creep process in which vortex bending and the neutral line play a major role. These results are demonstrated in analysis of the local relaxation data obtained from a thin Nd_1.85Ce_0.15CuO_4-δ crystal in the remanent state.

Original language	English
Pages (from-to)	689-690
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	284-288
Issue number	PART I
DOIs	https://doi.org/10.1016/S0921-4526(99)02372-8
State	Published - 2000

Bibliographical note

Funding Information:
This work was supported by the USA–Israel Binational Science Foundation, by the Heinrich Hertz Minerva Center, and by the Israel Science Foundation.

Funding

This work was supported by the USA–Israel Binational Science Foundation, by the Heinrich Hertz Minerva Center, and by the Israel Science Foundation.

Funders	Funder number
Heinrich Hertz Minerva Center
USA-Israel Binational Science Foundation
Israel Science Foundation

Keywords

Magnetic relaxation
NdSrCuO
Neutral line

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10.1016/S0921-4526(99)02372-8

Cite this

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title = "Relaxation of the remanent state in thin superconducting samples",

abstract = "We report the importance of the induction planar component Bx in the relaxation of the remanent state in thin superconducting samples. Analysis based on the one-dimensional rate equation for thermally activated flux motion, which considers only the normal component Bz, yields unphysical divergence of the average flux line velocity as the neutral line is approached. Two-dimensional analysis resolves this problem and yields a modified scenario for the flux creep process in which vortex bending and the neutral line play a major role. These results are demonstrated in analysis of the local relaxation data obtained from a thin Nd1.85Ce0.15CuO4-δ crystal in the remanent state.",

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AU - Radzyner, Y.

AU - Shaulov, A.

AU - Yeshurun, Y.

N1 - Funding Information: This work was supported by the USA–Israel Binational Science Foundation, by the Heinrich Hertz Minerva Center, and by the Israel Science Foundation.

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N2 - We report the importance of the induction planar component Bx in the relaxation of the remanent state in thin superconducting samples. Analysis based on the one-dimensional rate equation for thermally activated flux motion, which considers only the normal component Bz, yields unphysical divergence of the average flux line velocity as the neutral line is approached. Two-dimensional analysis resolves this problem and yields a modified scenario for the flux creep process in which vortex bending and the neutral line play a major role. These results are demonstrated in analysis of the local relaxation data obtained from a thin Nd1.85Ce0.15CuO4-δ crystal in the remanent state.

AB - We report the importance of the induction planar component Bx in the relaxation of the remanent state in thin superconducting samples. Analysis based on the one-dimensional rate equation for thermally activated flux motion, which considers only the normal component Bz, yields unphysical divergence of the average flux line velocity as the neutral line is approached. Two-dimensional analysis resolves this problem and yields a modified scenario for the flux creep process in which vortex bending and the neutral line play a major role. These results are demonstrated in analysis of the local relaxation data obtained from a thin Nd1.85Ce0.15CuO4-δ crystal in the remanent state.

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KW - Neutral line

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Relaxation of the remanent state in thin superconducting samples

Abstract

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Keywords

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