Magnetoresistance of c -axis-oriented epitaxial YBa sub 2 Cu sub 3 O sub 7 minus x films above T sub c

Journal Article · Fri Sep 01 04:00:00 EDT 1989 · Physical Review (Section) B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.40.5176· OSTI ID:5575088

Matsuda, Y; Hirai, T; Komiyama, S ^[1]; Terashima, T; Bando, Y ^[2]; Iijima, K; Yamamoto, K; Hirata, K ^[3]

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1. Department of Pure and Applied Science, University of Tokyo, 381 Komaba, Meguro-ku, Tokyo 153, Japan (JP)
2. Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611, Japan
3. Research Institute for Production Development, Sakyo-ku, Shimogamo, Kyoto 606, Japan

Magnetoresistance in high-quality single-crystal films of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} studied in a temperature range {ital T}{sub {ital c}}{approx lt}T{approx lt}210 K is presented for magnetic field configurations both parallel and perpendicular to the conducting {ital ab} plane. The data are analyzed in terms of recent theories of superconducting fluctuations considering both orbital and Zeeman effects in Aslamazov-Larkin and Maki-Thompson terms. From the analysis, the phase-breaking time of carriers is determined to be {tau}{sub {rho}}=(1{plus minus}0.1){times}10{sup {minus}13} sec at 100 K with a {ital T} dependence of 1/{tau}{sub {rho}}{proportional to}T{sup 1{minus}2}. {xi}{sub {ital c}}(0)=1.5{plus minus}0.5 A and {xi}{sub {ital ab}}(0) =11.5{plus minus}0.5 A are also derived for the inter- and intralayer coherence lengths.

• OSTI ID: 5575088
• Journal Information: Physical Review (Section) B: Condensed Matter; (USA), Journal Name: Physical Review (Section) B: Condensed Matter; (USA) Journal Issue: 7 Vol. 40:7; ISSN 0163-1829; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EPITAXY
FILMS
FLUCTUATIONS
LOW TEMPERATURE
MAGNETIC FIELDS
MAGNETORESISTANCE
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SUPERCONDUCTIVITY
TRANSITION ELEMENT COMPOUNDS
VARIATIONS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZEEMAN EFFECT