CaltechAUTHORS
Published June 1, 1992 | Version public
Journal Article Metadata-only

Critical fields and flux pinning in single crystal Ba_(1-x)K_xBiO_3

Creators

  • 1. ROR icon University of Chicago
  • 2. ROR icon National Sleep Foundation
  • 3. ROR icon Argonne National Laboratory

Abstract

We report DC magnetization measurements of high quality single crystals of superconducting Ba_(0.63)K_(0.37)BiO_3 with T_c = 29 K, yielding values for the upper and lower critical fields, the low field critical current, the magnetization relaxation rate, and the activation energy for flux motion. We contrast the magnetization relaxation results for isotropic Ba_(0.63)K_(0.37)BiO_3 with those obtained on highly anisotropic oxygen deficient single crystals of YBa_2Cu_3O_(7-δ) with δ = 0.58 and a comparable T_c= 35 K.

Additional Information

Copyright © 1992 Published by Elsevier. Received 2 March 1992. The work at the University of Chicago and the University of Illinois was supported by the NSF Science and Technology Center for Superconductivity, Grant No. 88-09854. BWV acknowledges support from US DOE, BES-Materials Science, Contract No. W-31-109-ENG-38.

Additional details

Additional titles

Alternative title
Critical fields and flux pinning in single crystal Ba1-xKxBiO3

Identifiers

Eprint ID
47012
Resolver ID
CaltechAUTHORS:20140707-163037437

Funding

NSF
DMR 88-09854
Department of Energy (DOE)
W-31-109-ENG-38

Dates

Created
2014-07-08
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Updated
2021-11-10
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Caltech groups
Physics Department