Unusual magnetic-field dependence of the electrothermal conductivity in the mixed state of cuprate superconductors

被引：16

作者：

Clayhold, JA ^{[1
]}

Xue, YY ^{[1
]}

Chu, CW ^{[1
]}

Eckstein, JN ^{[1
]}

Bozovic, I ^{[1
]}

机构：

[1] VARIAN RES CTR,PALO ALTO,CA 94304

来源：

PHYSICAL REVIEW B | 1996年 / 53卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.53.8681

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the mixed state of a superconductor, the electrothermal conductivity, P, which measures the electrical current density produced by a thermal gradient, is supposed to be independent of both the magnetic field and the details of the vortex motion. Measurements of the thermopower and resistivity in YBa2Cu3O7-delta, Bi2Sr2CaCu2Os8+delta, and Tl2Ba2CaCU2O8+delta show an unusual, sharp structure in P at low field. In Bi2Sr2CaCU2O8+delta, the extra contribution is negative,causing a sign change of the thermopower versus applied magnetic field. The possible origins of the low-field anomaly are discussed.

引用

页码：8681 / 8686

页数：6

共 17 条

[1] Blatt FJ, 1976, THERMOELECTRIC POWER, DOI 10.1007/978-1-4613-4268-7
[2] MOTION OF VORTEX STRUCTURE IN TYPE-2 SUPERCONDUCTORS IN HIGH MAGNETIC FIELD
CAROLI, C
MAKI, K
[J]. PHYSICAL REVIEW, 1967, 164 (02): : 591 - &
[3] HIGH-TEMPERATURE SUPERCONDUCTING MULTILAYERS AND HETEROSTRUCTURES GROWN BY ATOMIC LAYER-BY-LAYER MOLECULAR-BEAM EPITAXY
ECKSTEIN, JN
BOZOVIC, I
[J]. ANNUAL REVIEW OF MATERIALS SCIENCE, 1995, 25 : 679 - 709
[4] THERMOMAGNETIC PROPERTIES OF MIXED STATE
FIORY, AT
SERIN, B
[J]. PHYSICA, 1971, 55 (NOCT): : 73 - &
[5] SLIDING CHARGE-DENSITY WAVES AS A DYNAMIC CRITICAL PHENOMENON
FISHER, DS
[J]. PHYSICAL REVIEW B, 1985, 31 (03): : 1396 - 1427
[6] FREIMUTH A, 1992, FRONTIERS SOLID STAT
[7] HALL-EFFECT OF VORTICES PARALLEL TO CUO2 LAYERS AND THE ORIGIN OF THE NEGATIVE HALL ANOMALY IN YBA2CU3O7-DELTA - COMMENT
GESHKENBEIN, VB
LARKIN, AI
[J]. PHYSICAL REVIEW LETTERS, 1994, 73 (04) : 609 - 609
[8] SIGN REVERSAL OF THE HALL-EFFECT IN UNTWINNED SINGLE-CRYSTAL SUPERCONDUCTING YBA2CU3O7-DELTA
GINSBERG, DM
MANSON, JT
[J]. PHYSICAL REVIEW B, 1995, 51 (01) : 515 - 518
[9] HARRIS JM, 1994, PHYS REV LETT, V73, P610, DOI 10.1103/PhysRevLett.73.610
[10] SEEBECK EFFECT IN THE MIXED STATE OF HIGH-TC SUPERCONDUCTORS
HUEBENER, RP
USTINOV, AV
KAPLUNENKO, VK
[J]. PHYSICAL REVIEW B, 1990, 42 (07): : 4831 - 4833

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