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The effect of oxygenation and annealing on the peak effect of the magnetization of melt-grown YBa2CU3O7-?

Yi, Z., Beduz, C., Yang, Y., Scurlock, R.G. and de Groot, P.A.J. (1997) The effect of oxygenation and annealing on the peak effect of the magnetization of melt-grown YBa2CU3O7-? IEEE Transactions on Applied Superconductivity, 7, (2, Part 2), pp. 1604-1607. (doi:10.1109/77.620883).

Record type: Article

Abstract

The influence of oxygenation and high temperature annealing on the peak effect of the magnetization of melt-grown YBa2Cu3 O7-? (0<?<1) material has been studied. A control sample was prepared using a normal melt-growth procedure and oxygenated during cooling. A single grain cut from the control sample was annealed in the temperature region of the crystal growth (1030°C-900°C) followed by a standard oxygenation. Some of the control sample was powdered and oxygenated for different lengths of time. The peak of the magnetization shifted to a higher field for the sample oxygenated for longer times. Compared with the control sample, the peak of the magnetization of the sample annealed in the higher temperature region shifted to a lower field. The results are discussed within the framework of the collective pinning and collective creep model.

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More information

Published date: 1997
Keywords: annealing, barium compounds, crystal growth from melt, flux creep, flux pinning, grain boundaries, high-temperature superconductors, magnetisation, yttrium compounds

Identifiers

Local EPrints ID: 21068
URI: http://eprints.soton.ac.uk/id/eprint/21068
ISSN: 1051-8223
PURE UUID: ec8389bf-6cc1-47e5-85cc-968604b1ba2f
ORCID for Y. Yang: ORCID iD orcid.org/0000-0002-3874-6735

Catalogue record

Date deposited: 31 Mar 2006
Last modified: 24 Jul 2017 16:36

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