The University of Southampton
University of Southampton Institutional Repository

Frozen disorder and edge contamination in magnetization measurements of the Bragg glass phase

Küpfer, H., Ravikumar, G., Wolf, Th., Zhukov, A.A. and Meier-Hirmer, R. (2004) Frozen disorder and edge contamination in magnetization measurements of the Bragg glass phase Physical Review B, 70, (14), 144509-[8pp]. (doi:10.1103/PhysRevB.70.144509).

Record type: Article

Abstract

The Bragg glass phase and its transition into the disordered vortex state at high fields are investigated by magnetization measurements in V3Si varying nucleation and annealing of metastable disorder in a distinct manner. The extension of the Bragg glass becomes reduced by disorder from edge contamination and by frozen disordered phase. The relevance of these effects and their mutual interference depend on the lifetime of the metastable disorder and the time scale of the measurement. Magnetization loops, sequences of minor loops, and the transient decay of the irreversible moment are investigated by varying the sweep rate of the applied magnetic field and vortex shaking from the vibration amplitude of the magnetometer. Deviations from the standard Bean model based on a homogeneous flux distribution are used to separate frozen disorder, edge contamination, and Bean critical current in the Bragg glass phase. A comparison with YBa2Cu3O7 demonstrates the common nature of these contributions to the magnetic moment and the importance to identify them for the correct interpretation of vortex phase diagrams.

Full text not available from this repository.

More information

Published date: 18 October 2004
Keywords: vanadium compounds, superconducting materials, magnetisation, mixed state, nucleation, annealing, bean model, phase diagrams, magnetic moments, surface contamination

Identifiers

Local EPrints ID: 37676
URI: http://eprints.soton.ac.uk/id/eprint/37676
ISSN: 1550-235X
PURE UUID: 42cadd85-8678-4229-bc17-76e1db181278

Catalogue record

Date deposited: 25 May 2006
Last modified: 17 Jul 2017 15:41

Export record

Altmetrics

Contributors

Author: H. Küpfer
Author: G. Ravikumar
Author: Th. Wolf
Author: A.A. Zhukov
Author: R. Meier-Hirmer

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×