Coexistence of SDW and CDW in quarter-filled organic conductors

被引：37

作者：

Kobayashi, N

Ogata, M

机构：

[1] Department of Basic Science, Graduate School of Arts and Sciences, University of Tokyo, Komaba, Meguro-ku, Tokyo

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1997年 / 66卷 / 11期

关键词：

organic conductors; dimerization; pure SDW; coexistence of 2k(F) SDW and CDW; (TMTSF)(2)PF6;

D O I：

10.1143/JPSJ.66.3356

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have performed a mean field calculation in order to determine the ground state of a modified Hubbard model of a quarter-filled one-dimensional chain. A phase diagram is obtained as the values of the elastic constant of the chain and the on-site Coulomb energy are varied. Our result supports the experimental report concerning (TMTSF)(2)PF6 that an X-ray observation has confirmed a coexisting phase of 2k(F) CDW and 2k(F) SDW.

引用

页码：3356 / 3359

页数：4

共 16 条

[1] SOFTENING OF YOUNG MODULUS AND COLLECTIVE SPIN-DENSITY-WAVE TRANSPORT IN (TMTSF)2PF6 (WHERE TMTSF IS TETRAMETHYLTETRASELENAFULVALENE) [J].

BROWN, SE ;

ALAVI, B ;

GRUNER, G ;

BARTHOLOMEW, K .

PHYSICAL REVIEW B, 1992, 46 (16) :10483-10486

[2] CHARGE ORDER AND ANTIFERROMAGNETIC ORDER IN HUBBARD MODEL WITH NEAREST-NEIGHBOR COULOMB INTERACTION - WEAK COUPLING [J].

CABIB, D ;

CALLEN, E .

PHYSICAL REVIEW B, 1975, 12 (11) :5249-5254

[3] NMR PROTON LINESHAPE IN (TMTSF)2X - INCOMMENSURABILITY OF NESTING VECTOR AND ORDER PARAMETER [J].

DELRIEU, JM ;

ROGER, M ;

TOFFANO, Z ;

MORADPOUR, A ;

BECHGAARD, K .

JOURNAL DE PHYSIQUE, 1986, 47 (05) :839-861

[4]

GRUNER G, 1994, FRONTIERS PHYSICS, V89

[5] 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

[6] ORGANIC CONDUCTORS AND SUPERCONDUCTORS [J].

JEROME, D ;

SCHULZ, HJ .

ADVANCES IN PHYSICS, 1982, 31 (04) :299-490

[7]

KAGOSHIMA S, COMMUNICATION

[8] EXCHANGE AND CORRELATION INSTABILITIES OF SIMPLE METALS [J].

OVERHAUSER, AW .

PHYSICAL REVIEW, 1968, 167 (03) :691-+

[9] CHARGE GAP IN THE ONE-DIMENSIONAL DIMERIZED HUBBARD-MODEL AT QUARTER-FILLING [J].

PENC, K ;

MILA, F .

PHYSICAL REVIEW B, 1994, 50 (16) :11429-11445

[10]

Pouget JP, 1996, J PHYS I, V6, P1501, DOI 10.1051/jp1:1996171

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