THERMAL-CONDUCTIVITY OF AN UNTWINNED YBA2CU3O7-DELTA SINGLE-CRYSTAL AND A NEW INTERPRETATION OF THE SUPERCONDUCTING-STATE THERMAL TRANSPORT

被引:271
作者
YU, RC [1 ]
SALAMON, MB [1 ]
LU, JP [1 ]
LEE, WC [1 ]
机构
[1] UNIV ILLINOIS,SCI & TECHNOL CTR SUPERCONDUCT,URBANA,IL 61801
关键词
D O I
10.1103/PhysRevLett.69.1431
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have measured the anisotropic thermal conductivity of an untwinned single crystal of YBa2Cu3O7-delta in the most conducting a-b plane from 14 to 200 K. Unlike previous analyses, ours attributes the observed rapid rise in thermal conductivity in the superconducting state to the electronic contribution of the Cu-O plane. We propose that strong suppression of the quasiparticle scattering rate with decreasing temperature is responsible for the large enhancement of the superconducting-state thermal conductivity.
引用
收藏
页码:1431 / 1434
页数:4
相关论文
共 33 条
  • [1] THEORY OF THE THERMAL CONDUCTIVITY OF SUPERCONDUCTORS
    BARDEEN, J
    RICKAYZEN, G
    TEWORDT, L
    [J]. PHYSICAL REVIEW, 1959, 113 (04): : 982 - 994
  • [2] EVIDENCE FOR RAPID SUPPRESSION OF QUASI-PARTICLE SCATTERING BELOW T(C) IN YBA2CU3O7-DELTA
    BONN, DA
    DOSANJH, P
    LIANG, R
    HARDY, WN
    [J]. PHYSICAL REVIEW LETTERS, 1992, 68 (15) : 2390 - 2393
  • [3] BONN DA, IN PRESS PHYS REV B
  • [4] LATTICE THERMAL-CONDUCTIVITY OF YBA2CU3O7-DELTA
    COHN, JL
    WOLF, SA
    VANDERAH, TA
    SELVAMANICKAM, V
    SALAMA, K
    [J]. PHYSICA C, 1992, 192 (3-4): : 435 - 442
  • [5] THERMAL-CONDUCTIVITY IN THE AB PLANE OF UNTWINNED YBA2CU3O7-DELTA
    COHN, JL
    SKELTON, EF
    WOLF, SA
    LIU, JZ
    SHELTON, RN
    [J]. PHYSICAL REVIEW B, 1992, 45 (22): : 13144 - 13147
  • [6] THERMAL-CONDUCTIVITY ANISOTROPY OF SINGLE-CRYSTAL BI2SR2CACU2O8
    CROMMIE, MF
    ZETTL, A
    [J]. PHYSICAL REVIEW B, 1991, 43 (01): : 408 - 412
  • [7] DIRECT MEASUREMENT OF THE ANISOTROPY OF THE RESISTIVITY IN THE A-B PLANE OF TWIN-FREE, SINGLE-CRYSTAL, SUPERCONDUCTING YBA2CU3O7-DELTA
    FRIEDMANN, TA
    RABIN, MW
    GIAPINTZAKIS, J
    RICE, JP
    GINSBERG, DM
    [J]. PHYSICAL REVIEW B, 1990, 42 (10): : 6217 - 6221
  • [8] GINSBERG DM, 1992, PHYSICS CHEM OXIDE S, P511
  • [9] ANISOTROPY OF THE THERMAL-CONDUCTIVITY OF YBA2CU3O7-Y
    HAGEN, SJ
    WANG, ZZ
    ONG, NP
    [J]. PHYSICAL REVIEW B, 1989, 40 (13): : 9389 - 9392
  • [10] IYE Y, 1992, PHYSICAL PROPERTIES, V3