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Origin of dissipation in high-[ital T][sub [ital c]] superconductors

Journal Article · · Physical Review, B: Condensed Matter; (United States)
;  [1]; ; ;  [2]
  1. National Research Institute for Metals, Tsukuba Laboratory, 1-2-1, Sengen, Tsukuba, Ibaraki 305 (Japan)
  2. Department of Industrial Chemistry, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113 (Japan)
Based on a systematic experimental study of the resistivity of high-quality single crystals of (La[sub 1[minus][ital x]]Sr[sub [ital x]])[sub 2]CuO[sub 4], a phenomenological approach is proposed in which the dissipation for the direction perpendicular to the superconducting layers is explained by thermal fluctuations of the phase in Josephson junctions. By introducing an effective junction area [ital A]([ital H],[ital T]), an analytical expression for the resistivity is formulated, with which the [ital c]-axis resistivity as a function of [ital T], [ital H], and [theta] (angle between [ital H] and the basal plane) can be very well explained.
OSTI ID:
7071513
Journal Information:
Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 50:10; ISSN PRBMDO; ISSN 0163-1829
Country of Publication:
United States
Language:
English