C-13 NMR study of nesting instability in alpha-(BEDT-TTF)(2)RbHg(SCN)(4)

被引：49

作者：

Miyagawa, K

Kawamoto, A

Kanoda, K

机构：

[1] OCHANOMIZU UNIV, DEPT PHYS, BUNKYO KU, TOKYO 112, JAPAN

[2] UNIV TOKYO, DEPT APPL PHYS, TOKYO 113, JAPAN

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.56.R8487

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The low-temperature nesting instability in the quasi-two-dimensional organic conductor, alpha-(BEDT-TTF)(2)RbHg(SCN)(4), has been investigated by C-13 NMR. Below 12 K, drastic decreases in the Knight shift and 1/(T1T) were observed with neither splitting nor broadening in the NMR spectra. The 1/(T1T) shows no enhancement around the nesting instability, unlike the conventional spin-density-wave (SDW) transition. The present C-13 NMR data are suggestive of nonmagnetic transition but allow only an unusual case of mobile state in the SDW scenario.

引用

页码：R8487 / R8490

页数：4

共 22 条

[1] NOVEL INTERPLAY OF FERMI-SURFACE BEHAVIOR AND MAGNETISM IN A LOW-DIMENSIONAL ORGANIC CONDUCTOR [J].

BROOKS, JS ;

AGOSTA, CC ;

KLEPPER, SJ ;

TOKUMOTO, M ;

KINOSHITA, N ;

ANZAI, H ;

UJI, S ;

AOKI, H ;

PEREL, AS ;

ATHAS, GJ ;

HOWE, DA .

PHYSICAL REVIEW LETTERS, 1992, 69 (01) :156-159

[2] Torque measurements on alpha-(BEDT-TTF)(2)MHg(SCN)(4) [J].

Christ, P ;

Biberacher, W ;

Bensch, W ;

Muller, H ;

Andres, K .

SYNTHETIC METALS, 1997, 86 (1-3) :2057-2058

[3] MAGNETIZATION MEASUREMENTS ON ALPHA-(BEDT-TTF)2KHG(SCN)4 [WHERE BEDT-TTF IS BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE] [J].

CHRIST, P ;

BIBERACHER, W ;

MULLER, H ;

ANDRES, K .

SOLID STATE COMMUNICATIONS, 1994, 91 (06) :451-455

[4]

CREUZET F, 1988, SYNTHETIC MET, V27, pB65, DOI 10.1016/0379-6779(88)90125-7

[5] Resonant magnetoabsorption of millimeter-wave radiation in the quasi-two-dimensional organic metals alpha-(BEDT-TTF)(2)MHg(SCN)(4) (M=K,Tl) [J].

Demishev, SV ;

Semeno, AV ;

Sluchanko, NE ;

Samarin, NA ;

Voskoboinikov, IB ;

Glushkov, VV ;

Singleton, J ;

Blundell, SJ ;

Hill, SO ;

Hayes, W ;

Kartsovnik, MV ;

Kovalev, AE ;

Kurmoo, M ;

Day, P ;

Kushch, ND .

PHYSICAL REVIEW B, 1996, 53 (19) :12794-12803

[6] C-13 NMR-STUDIES OF THE NORMAL AND SUPERCONDUCTING STATES OF THE ORGANIC SUPERCONDUCTOR KAPPA-(ET)(2)CU[N(CN)(2)]BR [J].

DESOTO, SM ;

SLICHTER, CP ;

KINI, AM ;

WANG, HH ;

GEISER, U ;

WILLIAMS, JM .

PHYSICAL REVIEW B, 1995, 52 (14) :10364-10368

[7]

KARTSOVNIK MV, 1993, J PHYS I, V3, P1187, DOI 10.1051/jp1:1993264

[8] Electron correlation in the K-phase family of BEDT-TTF compounds studied by C-13 NMR, where BEDT-TTF is bis(ethylenedithio)tetrathiafulvalene [J].

Kawamoto, A ;

Miyagawa, K ;

Nakazawa, Y ;

Kanoda, K .

PHYSICAL REVIEW B, 1995, 52 (21) :15522-15533

[9] C-13 NMR-STUDY OF A QUASI-2-DIMENSIONAL ORGANIC SUPERCONDUCTOR K-(ET)2CU[N(CN)2]BR [J].

MAYAFFRE, H ;

WZIETEK, P ;

LENOIR, C ;

JEROME, D ;

BATAIL, P .

EUROPHYSICS LETTERS, 1994, 28 (03) :205-210

[10] Magnetoresistance and magnetic breakdown in the quasi-two-dimensional conductors (BEDT-TTF)(2)MHg(SCN)(4)[M=K,Rb,Tl] [J].

McKenzie, RH ;

Athas, GJ ;

Brooks, JS ;

Clark, RG ;

Dzurak, AS ;

Newbury, R ;

Starrett, RP ;

Skougarevsky, A ;

Tokumoto, M ;

Kinoshita, N ;

Kinoshita, T ;

Tanaka, Y .

PHYSICAL REVIEW B, 1996, 54 (12) :R8289-R8292

← 1 2 3 →