Novel magnetic relaxation in single-crystal Tl2Ca 1Ba2Cu2O8 superconductors

Fulin Zuo, M. B. Salamon, T. Datta, K. Ghiron

Research output: Contribution to journalArticle

Abstract

Magnetic relaxation in single-crystal Tl2Ca1Ba 2Cu2O8 superconductors is reported. Typical logarithmic flux creep has been observed at low temperatures. At high temperatures and fields, different flux dynamics are observed: first, nonlogarithmic dependence followed by the appearance of reverse creep, i.e., increasingly negative magnetization. This latter effect begins after a temperature- and field-dependent wait time. To explain reverse creep flux-line roughening, driven by pinning randomness, is considered.

Original languageEnglish (US)
Pages (from-to)5197-5199
Number of pages3
JournalJournal of Applied Physics
Volume69
Issue number8
DOIs
StatePublished - Dec 1 1991
Externally publishedYes

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magnetic relaxation
single crystals
magnetization
temperature

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Novel magnetic relaxation in single-crystal Tl2Ca 1Ba2Cu2O8 superconductors. / Zuo, Fulin; Salamon, M. B.; Datta, T.; Ghiron, K.

In: Journal of Applied Physics, Vol. 69, No. 8, 01.12.1991, p. 5197-5199.

Research output: Contribution to journalArticle

Zuo, Fulin ; Salamon, M. B. ; Datta, T. ; Ghiron, K. / Novel magnetic relaxation in single-crystal Tl2Ca 1Ba2Cu2O8 superconductors. In: Journal of Applied Physics. 1991 ; Vol. 69, No. 8. pp. 5197-5199.
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