NMR study of Cu(Ir0.95Rh0.05)2S4

被引：5

作者：

Kishimoto, Y ^{[1
]}

Ohno, T

Nagata, S

Matsumoto, N

Kanashiro, T

Michihiro, Y

Nakamura, K

机构：

[1] Univ Tokushima, Fac Engn, Dept Phys, Tokushima 7708506, Japan

[2] Muroran Inst Technol, Dept Mat Sci & Engn, Muroran, Hokkaido 0508585, Japan

来源：

PHYSICA B | 2000年 / 281卷

关键词：

Cu(Ir0.95Rh0.05)(2)S-4; metal-insulator transition; NMR;

D O I：

10.1016/S0921-4526(99)00832-7

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

(CU)-C-63 NMR spin-lattice relaxation rate 1/T-1 was measured in copper sulfide spinel compound Cu(Ir-0.95 Rh-0.05)(2)S-4 Above 200 K the Korringa relation 1/T-1 T = 0.68 s(-1) K-1 holds. Below 200 K, 1/T-1, decreases drastically with decreasing temperature and the line width increases noticeably. These results correspond to the metal-insulator transition in this system reported at 200 K. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：634 / 635

页数：2

共 12 条

[1] STRUCTURAL AND MAGNETIC STUDIES OF METAL-INSULATOR-TRANSITION IN THIOSPINEL CUIR2S4 [J].

FURUBAYASHI, T ;

MATSUMOTO, T ;

HAGINO, T ;

NAGATA, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1994, 63 (09) :3333-3339

[2] SUPERCONDUCTIVITY IN SPINEL-TYPE COMPOUNDS CURH2S4 AND CURH2SE4 [J].

HAGINO, T ;

SEKI, Y ;

WADA, N ;

TSUJI, S ;

SHIRANE, T ;

KUMAGAI, KI ;

NAGATA, S .

PHYSICAL REVIEW B, 1995, 51 (18) :12673-12684

[3] NMR-STUDY OF SPINEL-TYPE COPPER SULFIDE CU1.5RH1.55S4 [J].

KISHIMOTO, Y ;

OHNO, T ;

KANASHIRO, T ;

MIYATANI, K ;

ISHIKAWA, M .

PHYSICA C, 1994, 235 :1635-1636

[4]

KISHIMOTO Y, 1996, SOLID STATE COMMUN, V96, P23

[5] Metal-insulator transition in the spinel-type CuIr2(S1-xSex)4 system [J].

Nagata, S ;

Matsumoto, N ;

Kato, Y ;

Furubayashi, T ;

Matsumoto, T ;

Sanchez, JP ;

Vulliet, P .

PHYSICAL REVIEW B, 1998, 58 (11) :6844-6854

[6]

NAGATA S, 1996, J PHYS S5, V46, P50

[7] 63Cu and 51V spin-spin relaxation rates in CuV2S4 [J].

Ohno, T ;

Kishimoto, Y .

PHYSICA B-CONDENSED MATTER, 1999, 259-61 :971-973

[8] Change in V-51 relaxation rates due to CDW in CuV2S4 [J].

Ohno, T ;

Kishimoto, Y ;

Kanashiro, T ;

Miyamoto, M ;

Tanaka, T ;

Miyatani, K .

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, 1996, 51 (5-6) :773-776

[9] CU-63 NMR-STUDY OF THE SUPERCONDUCTING THIOSPINEL CU15RH1.5S4 [J].

OHNO, T ;

KISHIMOTO, Y ;

MIYATANI, K ;

ISHIKAWA, M .

PHYSICA C, 1995, 250 (3-4) :227-234

[10] Changes in Cu-63 and Cu-65 NMR relaxation rates due to charge density wave transition in CuV2S4 [J].

Ohno, T ;

Kishimoto, Y ;

Miyatani, K .

PHYSICA B, 1997, 230 :988-991

← 1 2 →