Vortex regime crossover in the Bragg glass phase in a YBa2Cu3O7-δ crystal

I. M. Obaidat

doi:10.1016/j.physc.2006.05.055

Vortex regime crossover in the Bragg glass phase in a YBa₂Cu₃O_7-δ crystal

I. M. Obaidat

Department of Physics

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

Abstract

We have investigated the behavior of vortex lattice in a weakly pinned YBa₂Cu₂O_7-δ crystal using rotational magnetization measurements. At low applied magnetic fields parallel to the ab plane of the crystal, we have found that the vortex state undergoes a crossover from a relatively strongly pinned vortex regime to a weakly pinned vortex regime in the Bragg glass phase. In the weakly pinned vortex regime of the Bragg glass phase, vortices were described to be completely depinned and aligned parallel to the applied field.

Original language	English
Pages (from-to)	129-133
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	442
Issue number	2
DOIs	https://doi.org/10.1016/j.physc.2006.05.055
Publication status	Published - Aug 15 2006

Keywords

Bragg glass phase
Crossover
Pinning
Vortex

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/j.physc.2006.05.055

Cite this

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title = "Vortex regime crossover in the Bragg glass phase in a YBa2Cu3O7-δ crystal",

abstract = "We have investigated the behavior of vortex lattice in a weakly pinned YBa2Cu2O7-δ crystal using rotational magnetization measurements. At low applied magnetic fields parallel to the ab plane of the crystal, we have found that the vortex state undergoes a crossover from a relatively strongly pinned vortex regime to a weakly pinned vortex regime in the Bragg glass phase. In the weakly pinned vortex regime of the Bragg glass phase, vortices were described to be completely depinned and aligned parallel to the applied field.",

keywords = "Bragg glass phase, Crossover, Pinning, Vortex",

author = "Obaidat, {I. M.}",

note = "Funding Information: The author is very thankful to Prof. James Kouvel from the University of Illinois at Chicago for his comments and suggestions. This work was financially supported by the Research Affairs at the UAE University under a Contract No. 03-02-2-11/04.",

year = "2006",

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AU - Obaidat, I. M.

N1 - Funding Information: The author is very thankful to Prof. James Kouvel from the University of Illinois at Chicago for his comments and suggestions. This work was financially supported by the Research Affairs at the UAE University under a Contract No. 03-02-2-11/04.

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Y1 - 2006/8/15

N2 - We have investigated the behavior of vortex lattice in a weakly pinned YBa2Cu2O7-δ crystal using rotational magnetization measurements. At low applied magnetic fields parallel to the ab plane of the crystal, we have found that the vortex state undergoes a crossover from a relatively strongly pinned vortex regime to a weakly pinned vortex regime in the Bragg glass phase. In the weakly pinned vortex regime of the Bragg glass phase, vortices were described to be completely depinned and aligned parallel to the applied field.

AB - We have investigated the behavior of vortex lattice in a weakly pinned YBa2Cu2O7-δ crystal using rotational magnetization measurements. At low applied magnetic fields parallel to the ab plane of the crystal, we have found that the vortex state undergoes a crossover from a relatively strongly pinned vortex regime to a weakly pinned vortex regime in the Bragg glass phase. In the weakly pinned vortex regime of the Bragg glass phase, vortices were described to be completely depinned and aligned parallel to the applied field.

KW - Bragg glass phase

KW - Crossover

KW - Pinning

KW - Vortex

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