Turbulent relaxation in the vortex lattice

M. R. Koblischka; T. H. Johansen; M. Baziljevich; H. Hauglin; H. Bratsberg; B. Ya Shapiro

doi:10.1209/epl/i1998-00167-2

Turbulent relaxation in the vortex lattice

M. R. Koblischka, T. H. Johansen, M. Baziljevich, H. Hauglin, H. Bratsberg, B. Ya Shapiro

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

27 Citations (Scopus)

Abstract

The time dependence of flux patterns of an untwinned YBa₂Cu₃O_7-δ single crystal showing the "meandering instability" is observed at T = 65 K using magneto-optical imaging. When applying a reversed external field to a remanent state, along the front of penetrating antivortices, flux droplets are formed which can separate from the flux front and move in a spiral-like fashion. It is shown that the vortices along the flux front are in fast motion. These observations are discussed using a newly developed theory. Furthermore, the flux patterns are analyzed in terms of flux creep.

Original language	English
Pages (from-to)	419-424
Number of pages	6
Journal	Europhysics Letters
Volume	41
Issue number	4
DOIs	https://doi.org/10.1209/epl/i1998-00167-2
Publication status	Published - 1998 Feb 15
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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AU - Koblischka, M. R.

AU - Johansen, T. H.

AU - Baziljevich, M.

AU - Hauglin, H.

AU - Bratsberg, H.

AU - Shapiro, B. Ya

PY - 1998/2/15

Y1 - 1998/2/15

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AB - The time dependence of flux patterns of an untwinned YBa2Cu3O7-δ single crystal showing the "meandering instability" is observed at T = 65 K using magneto-optical imaging. When applying a reversed external field to a remanent state, along the front of penetrating antivortices, flux droplets are formed which can separate from the flux front and move in a spiral-like fashion. It is shown that the vortices along the flux front are in fast motion. These observations are discussed using a newly developed theory. Furthermore, the flux patterns are analyzed in terms of flux creep.

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Turbulent relaxation in the vortex lattice

Abstract

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