TITLE

Low-field structure in the magnetization of polycrystalline YBa2Cu3O7-x and ErBa2Cu3O7-x

AUTHOR(S)
Wong, D.; Stamper, A. K.; Stancil, D. D.; Schlesinger, T. E.
PUB. DATE
July 1988
SOURCE
Applied Physics Letters;7/18/1988, Vol. 53 Issue 3, p240
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have studied the structure present at small fields (<50 Oe) in the magnetic hysteresis of polycrystalline samples of YBa2Cu3O7-x and ErBa2Cu3O7-x. This structure is absent from measurements on a powder of YBa2Cu3O7-x. We conclude that the structure results from interactions among the grains and is not an intrinsic property of the compounds. Flux creep associated with this structure is found to be proportional to ln(t) over three decades of observation time.
ACCESSION #
9827423

 

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