Strong electron correlations in kappa-(BEDT-TTF)(2)X salts

被引：17

作者：

Ivanov, V

Kanoda, K

机构：

[1] Institute for Molecular Science, Okazaki, 444, Nishigonaka 38, Myodaiji-cho

[2] N.S. Kurnakov Inst. Gen. Inorg. C., Russian Academy of Sciences, 117 907 Moscow

来源：

PHYSICA C | 1996年 / 268卷 / 3-4期

关键词：

coulomb interactions; band structure; anisotropic superconductor; organic superconductor;

D O I：

10.1016/0921-4534(96)00406-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The kappa-ET(2)X compounds are classified as strongly correlated electron systems. The tight-binding approach for correlated electrons is applied to the kappa-ET(2)X family. The electronic spectrum and density of states are calculated. The singlet superconducting pairing of different symmetries is studied based on the symmetry of the lattice model of ET(2)-layer, and the superconducting coupling constants are calculated. The comparison of the theoretical speculations with available experimental data is made for normal and superconducting phases in kappa-ET(2)X.

引用

页码：205 / 215

页数：11

共 55 条

[21] SUPERCONDUCTIVITY IN A SYNTHETIC ORGANIC CONDUCTOR (TMTSF)2PF6 [J].

JEROME, D ;

MAZAUD, A ;

RIBAULT, M ;

BECHGAARD, K .

JOURNAL DE PHYSIQUE LETTRES, 1980, 41 (04) :L95-L98

[22]

Jerome D., 1994, Organic Conductors: Fundamentals and Applications, P405

[23]

KANODA K, 1996, IN PRESS PHYS REV B, V53

[24]

KANODA K, 1995, KOTAI BUTZURI, V30, P84

[25]

KANODA K, PREPRINT

[26] EFFECT OF IMPURITY SCATTERING ON A (D+S)-WAVE SUPERCONDUCTOR [J].

KIM, H ;

NICOL, EJ .

PHYSICAL REVIEW B, 1995, 52 (18) :13576-13584

[27] 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) [J].

KINI, AM ;

GEISER, U ;

WANG, HH ;

CARLSON, KD ;

WILLIAMS, JM ;

KWOK, WK ;

VANDERVOORT, KG ;

THOMPSON, JE ;

STUPKA, DL ;

JUNG, D ;

WHANGBO, MH .

INORGANIC CHEMISTRY, 1990, 29 (14) :2555-2557

[28] ELECTRONIC STATES OF CONDUCTING ORGANIC KAPPA-(BEDT-TTF)(2)X [J].

KINO, H ;

FUKUYAMA, H .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1995, 64 (08) :2726-2729

[29] New BETS conductors with magnetic anions (BETS equivalent to bis(ethylenedithio)tetraselenafulvalene) [J].

Kobayashi, H ;

Tomita, H ;

Naito, T ;

Kobayashi, A ;

Sakai, F ;

Watanabe, T ;

Cassoux, P .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (02) :368-377

[30]

MAKI K, 1995, PHYS LETT A, V208, P3650

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