Metal-insulator transition in the spinel-type Cu(Ir1-xPtx)2S4 system

被引：13

作者：

Matsumoto, N ^{[1
]}

Yamauchi, Y ^{[1
]}

Awaka, J ^{[1
]}

Kamei, Y ^{[1
]}

Takano, H ^{[1
]}

Nagata, S ^{[1
]}

机构：

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

来源：

INTERNATIONAL JOURNAL OF INORGANIC MATERIALS | 2001年 / 3卷 / 07期

关键词：

sulfide; metal-insulator transition; electrical resistivity; magnetic susceptibility; powder X-ray diffraction;

D O I：

10.1016/S1466-6049(01)00180-5

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A normal thiospinel CuIr2S4 exhibits a temperature-induced metal-insulator (M-I) transition around 226 K with crystal structure transformation. In order to study gradual variations of the M-I transition by gentle chemical modification with increasing the number of 5d electron, we have prepared the polycrystalline samples of Cu(Ir1-xPtx)(2)S-4 and have investigated the electrical and magnetic properties of these samples. The features of the M-I transition in the electrical resistivity vary gradually with Pt concentration x. No structural transformation has been observed for x=0.25 and 0.30, where the abrupt jump disappears in the resistivity and the magnetic susceptibility around the transition temperature. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：791 / 795

页数：5

共 19 条

[1]

BALCEREK K, 1998, 11 SEM PHAS TRANS CR, P110

[2] Anomalous resistivity and thermopower of the spinel-type compounds CuIr2S4 and CuIr2Se4 [J].

Burkov, AT ;

Nakama, T ;

Hedo, M ;

Shintani, K ;

Yagasaki, K ;

Matsumoto, N ;

Nagata, S .

PHYSICAL REVIEW B, 2000, 61 (15) :10049-10056

[3]

ENDOH R, IN PRESS J PHYS CHEM

[4] 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

[5] METAL-INSULATOR-TRANSITION AT 230 K IN A NEW THIOSPINEL CUIR2S4 [J].

HAGINO, T ;

TOJO, T ;

ATAKE, T ;

NAGATA, S .

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1995, 71 (05) :881-894

[6] METAL-INSULATOR-TRANSITION IN CUIR2S4 - COMPARISON WITH CUIR2SE4 [J].

HAGINO, T ;

SEKI, Y ;

NAGATA, S .

PHYSICA C, 1994, 235 :1303-1304

[7]

Konig E., 1976, LANDOLT BORNSTEIN GR, V8, P27

[8]

KUMAGAI K, 1995, SPRINGER SERIES SOLI, V119, P255

[9] X-ray emission spectra and electronic structure of CuIr2S4 and CuIr2Se4 [J].

Kurmaev, EZ ;

Galakhov, VR ;

Zatsepin, DA ;

Trofimova, VA ;

Stadler, S ;

Ederer, DL ;

Moewes, A ;

Grush, MM ;

Callcott, TA ;

Matsuno, J ;

Fujimori, A ;

Nagata, S .

SOLID STATE COMMUNICATIONS, 1998, 108 (04) :235-239

[10] Metal-insulator transition and superconductivity in the spinel-type Cu(Ir1-xRhx)2S4 system [J].

Matsumoto, N ;

Endoh, R ;

Nagata, S ;

Furubayashi, T ;

Matsumoto, T .

PHYSICAL REVIEW B, 1999, 60 (08) :5258-5265

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