Vortex-antivortex annihilation and flux turbulence in layered type-II superconductors

E. E. Dvash; I. Shapiro; B. Rosenstein; N. Logoboy; B. Y. Shapiro

doi:10.1007/s10909-012-0475-0

Vortex-antivortex annihilation and flux turbulence in layered type-II superconductors

E. E. Dvash, I. Shapiro, B. Rosenstein, N. Logoboy, B. Y. Shapiro

Department of Physics

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

4 Scopus citations

Abstract

New mechanism of turbulence instability of standing flux-antiflux front in layered superconductors is presented. We describe two assisting mechanisms destabilizing the standing vortex-antivortex front. There are anisotropy of the layered superconductors and the heat, released by the vortex-antivortex annihilation. We present the conditions of the front stability for various anisotropy and heating parameters. We predict that heat released by the vortex-antivortex annihilations enhances the turbulence instability in superconductors with small anisotropy. The characteristic size of the unstable pattern is estimated. The results are in a good agreement with recent experiments.

Original language	English
Pages (from-to)	39-58
Number of pages	20
Journal	Journal of Low Temperature Physics
Volume	167
Issue number	1-2
DOIs	https://doi.org/10.1007/s10909-012-0475-0
State	Published - Apr 2012

Bibliographical note

Funding Information:
This work was supported by the Israel Academy of Sciences (Grant 4/03-11.7).

Funding

This work was supported by the Israel Academy of Sciences (Grant 4/03-11.7).

Funders	Funder number
Israel Academy of Sciences and Humanities	4/03-11.7

Keywords

Anisotropic superconductors
Flux Instability
Spatial pattern

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10.1007/s10909-012-0475-0

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abstract = "New mechanism of turbulence instability of standing flux-antiflux front in layered superconductors is presented. We describe two assisting mechanisms destabilizing the standing vortex-antivortex front. There are anisotropy of the layered superconductors and the heat, released by the vortex-antivortex annihilation. We present the conditions of the front stability for various anisotropy and heating parameters. We predict that heat released by the vortex-antivortex annihilations enhances the turbulence instability in superconductors with small anisotropy. The characteristic size of the unstable pattern is estimated. The results are in a good agreement with recent experiments.",

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AU - Shapiro, I.

AU - Rosenstein, B.

AU - Logoboy, N.

AU - Shapiro, B. Y.

N1 - Funding Information: This work was supported by the Israel Academy of Sciences (Grant 4/03-11.7).

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AB - New mechanism of turbulence instability of standing flux-antiflux front in layered superconductors is presented. We describe two assisting mechanisms destabilizing the standing vortex-antivortex front. There are anisotropy of the layered superconductors and the heat, released by the vortex-antivortex annihilation. We present the conditions of the front stability for various anisotropy and heating parameters. We predict that heat released by the vortex-antivortex annihilations enhances the turbulence instability in superconductors with small anisotropy. The characteristic size of the unstable pattern is estimated. The results are in a good agreement with recent experiments.

KW - Anisotropic superconductors

KW - Flux Instability

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Vortex-antivortex annihilation and flux turbulence in layered type-II superconductors

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