Logarithmic-to-nonlogarithmic flux-creep transition and magnetic-flux hardening in Bi-Sr-Ca-Cu-O superconducting ceramics

H. Safar, C. Durn, J. Guimpel, L. Civale, J. Luzuriaga, E. Rodriguez, F. De La Cruz, C. Fainstein, L. F. Schneemeyer, J. V. Waszczak

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

A sharp temperature- and field-dependent transition from a logarithmic to a nonlogarithmic flux-creep behavior has been found in Bi-Sr-Ca-Cu-O superconductors. The transition is not followed by any noticeable change in the magnetization. However, vibrating-reed measurements show that it coincides with a strong hardening of the magnetic structure. The transition occurs at fields and temperatures well below the reversibility line. The possible relation to the recently proposed flux lattice melting is discussed.

Original languageEnglish
Pages (from-to)7380-7383
Number of pages4
JournalPhysical Review B
Volume40
Issue number10
DOIs
StatePublished - 1 Jan 1989

Fingerprint Dive into the research topics of 'Logarithmic-to-nonlogarithmic flux-creep transition and magnetic-flux hardening in Bi-Sr-Ca-Cu-O superconducting ceramics'. Together they form a unique fingerprint.

Cite this