Logarithmic-to-Nonlogarithmic Flux-Creep Transition and Magnetic-Flux Hardening in Bi-Sr-Ca-Cu-O Superconducting Ceramics

Authors

Hugo F. Safar, Nokia Bell LabsFollow
C.A. Durán, LucentFollow
Julio Guimpel, Comisión Nacional de Energía AtómicaFollow
L. Civale, Comisión Nacional de Energía Atómica
Javier Luzuriaga, Universidad Nacional de CordobaFollow
Eduardo E. Rodriguez, Universidad de Buenos AiresFollow
Francisco De La Cruz, Centro Atmico BarilocheFollow
Carlos Fainstein, Centro Atomico BarilocheFollow
Lynn Schneemeyer, Montclair State UniversityFollow
Joseph V. Waszczak, University of WashingtonFollow

Document Type

Article

Publication Date

1-1-1989

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.

DOI

10.1103/PhysRevB.40.7380

Montclair State University Digital Commons Citation

Safar, Hugo F.; Durán, C.A.; Guimpel, Julio; Civale, L.; Luzuriaga, Javier; Rodriguez, Eduardo E.; De La Cruz, Francisco; Fainstein, Carlos; Schneemeyer, Lynn; and Waszczak, Joseph V., "Logarithmic-to-Nonlogarithmic Flux-Creep Transition and Magnetic-Flux Hardening in Bi-Sr-Ca-Cu-O Superconducting Ceramics" (1989). Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works. 53.
https://digitalcommons.montclair.edu/chem-biochem-facpubs/53