SPECIFIC-HEAT OF THE HIGH-TC ORGANIC SUPERCONDUCTOR KAPPA-(ET)2CU[N(CN)2]BR

被引：55

作者：

ANDRAKA, B

JEE, CS

KIM, JS

STEWART, GR

CARLSON, KD

WANG, HH

CROUCH, AVS

KINI, AM

WILLIAMS, JM

机构：

[1] ARGONNE NATL LAB,DIV CHEM & MAT SCI,ARGONNE,IL 60439

[2] UNIV AUGSBURG,W-8900 AUGSBURG,GERMANY

来源：

SOLID STATE COMMUNICATIONS | 1991年 / 79卷 / 01期

关键词：

D O I：

10.1016/0038-1098(91)90479-F

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

An anomaly in the specific heat of kappa-(ET)2 Cu[N(CN)2]Br, where ET is the radical-cation donor molecule bis(ethylenedithio)tetrathiafulvalene, has been observed around T(c) approximately 11.5 K, indicating bulk superconductivity in this organic charge-transfer salt. The normal-state electronic specific heat coefficient, gamma = 22 +/- 3 mJ K-2 mol was obtained by the suppression of superconductivity with a sufficiently strong magnetic field applied parallel to the crystallographic b direction. The ratio of the specific heat discontinuity DELTA-C to gamma-T indicates strong coupling. Comparisons with other ET-based organic superconductors are made.

引用

页码：57 / 59

页数：3

共 11 条

[1] SPECIFIC-HEAT IN HIGH MAGNETIC-FIELD OF KAPPA-DI[BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE]-DI(THIOCYANO)CUPRATE [KAPPA-(ET)2CU(NCS)2] - EVIDENCE FOR STRONG-COUPLING SUPERCONDUCTIVITY
ANDRAKA, B
KIM, JS
STEWART, GR
CARLSON, KD
WANG, HH
WILLIAMS, JM
[J]. PHYSICAL REVIEW B, 1989, 40 (16): : 11345 - 11347
[2] SPECIFIC-HEAT IN ZERO AND APPLIED MAGNETIC-FIELDS OF THE ORGANIC SUPERCONDUCTOR ALPHA-DI[BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE]-AMMONIUM-TETRA(THIOCYANATO)MERCURATE [ALPHA-(ET)2(NH4)HG(SCN)4]
ANDRAKA, B
STEWART, GR
CARLSON, KD
WANG, HH
VASHON, MD
WILLIAMS, JM
[J]. PHYSICAL REVIEW B, 1990, 42 (16): : 9963 - 9966
[3] SPECIFIC-HEAT OF SUPERCONDUCTING KAPPA-(BEDT-TTF)2CU(NCS)2 NEAR TC [WHERE BEDT-TTF IS BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE]
GRAEBNER, JE
HADDON, RC
CHICHESTER, SV
GLARUM, SH
[J]. PHYSICAL REVIEW B, 1990, 41 (07): : 4808 - 4810
[4] SPECIFIC-HEAT OF SINGLE-CRYSTALS OF YBA2CU3O7-DELTA - FLUCTUATION EFFECTS IN A BULK SUPERCONDUCTOR
INDERHEES, SE
SALAMON, MB
GOLDENFELD, N
RICE, JP
PAZOL, BG
GINSBERG, DM
LIU, JZ
CRABTREE, GW
[J]. PHYSICAL REVIEW LETTERS, 1988, 60 (12) : 1178 - 1180
[5] A NEW AMBIENT-PRESSURE ORGANIC SUPERCONDUCTOR, KAPPA-(ET)2CU[N(CN)2]BR, WITH THE HIGHEST TRANSITION-TEMPERATURE YET OBSERVED (INDUCTIVE ONSET TC = 11.6 K, RESISTIVE ONSET = 12.5 K)
KINI, AM
GEISER, U
WANG, HH
CARLSON, KD
WILLIAMS, JM
KWOK, WK
VANDERVOORT, KG
THOMPSON, JE
STUPKA, DL
JUNG, D
WHANGBO, MH
[J]. INORGANIC CHEMISTRY, 1990, 29 (14) : 2555 - 2557
[6] UNUSUAL BEHAVIOR IN THE UPPER CRITICAL MAGNETIC-FIELDS OF THE AMBIENT-PRESSURE ORGANIC SUPERCONDUCTOR - KAPPA-(BEDT-TTF)2CU[N(CN)2]BR [WHERE BEDT-TTF REPRESENTS BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE]
KWOK, WK
WELP, U
CARLSON, KD
CRABTREE, GW
VANDERVOORT, KG
WANG, HH
KINI, AM
WILLIAMS, JM
STUPKA, DL
MONTGOMERY, LK
THOMPSON, JE
[J]. PHYSICAL REVIEW B, 1990, 42 (13): : 8686 - 8689
[7] TRANSPORT-PROPERTIES OF ORGANIC CONDUCTOR (BEDT-TTF)2KHG(SCN)4 .2. SHUBNIKOV-DE HAAS OSCILLATIONS AND SPIN-SPLITTING EFFECT
SASAKI, T
TOYOTA, N
TOKUMOTO, M
KINOSHITA, N
ANZAI, H
[J]. SOLID STATE COMMUNICATIONS, 1990, 75 (02) : 97 - 100
[8] BULK SUPERCONDUCTING SPECIFIC-HEAT ANOMALY IN BETA-DI[BIS(ETHYLENEDITHIO) TETRATHIAFULVALENE] DIIODOAURATE [BETA-(ET)2AUI2]
STEWART, GR
WILLIAMS, JM
WANG, HH
HALL, LN
PEROZZO, MT
CARLSON, KD
[J]. PHYSICAL REVIEW B, 1986, 34 (09): : 6509 - 6510
[9] STEWART GR, 1985, PHYS REV B, V33, P2046
[10] STEADY-STATE AC-TEMPERATURE CALORIMETRY
SULLIVAN, PF
SEIDEL, G
[J]. PHYSICAL REVIEW, 1968, 173 (03): : 679 - &

← 1 2 →