SPECIFIC-HEAT JUMP AT T(C) AND NORMAL-STATE MAGNETIC-SUSCEPTIBILITY OF A3C60

被引：133

作者：

RAMIREZ, AP

ROSSEINSKY, MJ

MURPHY, DW

HADDON, RC

机构：

[1] AT and T Bell Laboratories, Murray Hill, NJ 07974

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.69.1687

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the normal-state susceptibility-chi for both K3C60 and Rb3C60 and the specific-heat jump DELTA-C at the superconducting T(c) for K3C60. Within a phonon-mediated pairing model, the combined effects of chi and DELTA-C are shown to give strong support to pairing via high-energy modes (> 1000 K) associated with intramolecular vibrations. In addition, the small DELTA-C along with the known upper critical field slope provide evidence for an extreme dirty-limit superconductor, with mean free path l almost-equal-to 10 angstrom.

引用

页码：1687 / 1690

页数：4

共 39 条

[31] SUPERCONDUCTIVITY AT 28 K IN RBXC60
ROSSEINSKY, MJ
RAMIREZ, AP
GLARUM, SH
MURPHY, DW
HADDON, RC
HEBARD, AF
PALSTRA, TTM
KORTAN, AR
ZAHURAK, SM
MAKHIJA, AV
[J]. PHYSICAL REVIEW LETTERS, 1991, 66 (21) : 2830 - 2832
[32] INFRARED REFLECTIVITY MEASUREMENTS OF A SUPERCONDUCTING ENERGY SCALE IN RB3C60
ROTTER, LD
SCHLESINGER, Z
MCCAULEY, JP
COUSTEL, N
FISCHER, JE
SMITH, AB
[J]. NATURE, 1992, 355 (6360) : 532 - 534
[33] ELECTRON-PHONON COUPLING AND SUPERCONDUCTIVITY IN ALKALI-INTERCALATED C60 SOLID
SCHLUTER, M
LANNOO, M
NEEDELS, M
BARAFF, GA
TOMANEK, D
[J]. PHYSICAL REVIEW LETTERS, 1992, 68 (04) : 526 - 529
[34] C-13 NMR-SPECTROSCOPY OF KXC60 - PHASE-SEPARATION, MOLECULAR-DYNAMICS, AND METALLIC PROPERTIES
TYCKO, R
DABBAGH, G
ROSSEINSKY, MJ
MURPHY, DW
FLEMING, RM
RAMIREZ, AP
TULLY, JC
[J]. SCIENCE, 1991, 253 (5022) : 884 - 886
[35] ELECTRONIC-PROPERTIES OF NORMAL AND SUPERCONDUCTING ALKALI FULLERIDES PROBED BY C-13 NUCLEAR-MAGNETIC-RESONANCE
TYCKO, R
DABBAGH, G
ROSSEINSKY, MJ
MURPHY, DW
RAMIREZ, AP
FLEMING, RM
[J]. PHYSICAL REVIEW LETTERS, 1992, 68 (12) : 1912 - 1915
[36] SUPERCONDUCTIVITY IN THE FULLERENES
VARMA, CM
ZAANEN, J
RAGHAVACHARI, K
[J]. SCIENCE, 1991, 254 (5034) : 989 - 992
[37] NORMAL-STATE MAGNETIC-PROPERTIES OF K3C60
WONG, WH
HANSON, ME
CLARK, WG
GRUNER, G
THOMPSON, JD
WHETTEN, RL
HUANG, SM
KANER, RB
DIEDERICH, F
PETIT, P
ANDRE, JJ
HOLCZER, K
[J]. EUROPHYSICS LETTERS, 1992, 18 (01): : 79 - 84
[38] ENHANCED ISOTOPE EFFECT IN C-13-RICH SUPERCONDUCTING MXC60 (M=K, RB) - SUPPORT FOR VIBRONIC PAIRING
ZAKHIDOV, AA
IMAEDA, K
PETTY, DM
YAKUSHI, K
INOKUCHI, H
KIKUCHI, K
IKEMOTO, I
SUZUKI, S
ACHIBA, Y
[J]. PHYSICS LETTERS A, 1992, 164 (3-4) : 355 - 361
[39] THE SUPERCONDUCTING ENERGY-GAP OF RB3C60
ZHANG, Z
CHEN, CC
KELTY, SP
DAI, HJ
LIEBER, CM
[J]. NATURE, 1991, 353 (6342) : 333 - 335

← 1 2 3 4 →