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Magnetoresistance of high- Tc superconductors in the fluctuation regime

Journal Article · · Physical Review, B: Condensed Matter; (USA)
;  [1]
  1. Department of Physics, University of Southern California, Los Angeles, CA (USA)
We study theoretically the fluctuation-induced electric conductivity in a magnetic field in the clean limit. Then we analyze the magnetoresistance observed in single-crystal Y-Ba-Cu-O samples. The present theory describes the observed magnetoresistance as well as the earlier dirty-limit theory by Aronov {ital et} {ital al}. (Phys. Rev. Lett. 62, 965 (1989)) but the value of the phase-relaxation time {tau}{sub {phi}} is two times larger than the one deduced within the dirty-limit theory.
OSTI ID:
6359430
Journal Information:
Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 42:7; ISSN 0163-1829; ISSN PRBMD
Country of Publication:
United States
Language:
English