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

[1] ANDERSON PH, IN PRESS
[2] Ashcroft N. W, 1976, SOLID STATE PHYS, P664
[3] BASKARAN G, 1991, CURR SCI INDIA, V61, P33
[4] EFFECT OF FERROMAGNETIC SPIN CORRELATIONS ON SUPERCONDUCTIVITY
BERK, NF
SCHRIEFFER, JR
[J]. PHYSICAL REVIEW LETTERS, 1966, 17 (08) : 433 - +
[5] LOW-TEMPERATURE SPECIFIC-HEAT OF C-60
BEYERMANN, WP
HUNDLEY, MF
THOMPSON, JD
DIEDERICH, FN
GRUNER, G
[J]. PHYSICAL REVIEW LETTERS, 1992, 68 (13) : 2046 - 2049
[6] BOEBINGER G, IN PRESS
[7] SUPERCONDUCTIVITY OF DOPED FULLERENES
CHAKRAVARTY, S
KIVELSON, S
[J]. EUROPHYSICS LETTERS, 1991, 16 (08): : 751 - 756
[8] SYNTHESIS OF PURE C-13(60) AND DETERMINATION OF THE ISOTOPE EFFECT FOR FULLERENE SUPERCONDUCTORS
CHEN, CC
LIEBER, CM
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1992, 114 (08) : 3141 - 3142
[9] ELECTRONIC STATES AND PHASES OF KXC60 FROM PHOTOEMISSION AND X-RAY ABSORPTION-SPECTROSCOPY
CHEN, CT
TJENG, LH
RUDOLF, P
MEIGS, G
ROWE, JE
CHEN, J
MCCAULEY, JP
SMITH, AB
MCGHIE, AR
ROMANOW, WJ
PLUMMER, EW
[J]. NATURE, 1991, 352 (6336) : 603 - 605
[10] THEORY OF THE MAGNETIZATION OF GRANULAR SUPERCONDUCTORS - APPLICATION TO HIGH-TC SUPERCONDUCTORS
CLEM, JR
KOGAN, VG
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1987, 26 : 1161 - 1162

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