METALLIC HOLE CONDUCTION IN CUS

被引:80
作者
NOZAKI, H [1 ]
SHIBATA, K [1 ]
OHHASHI, N [1 ]
机构
[1] TOKYO INST TECHNOL,FAC ENGN,TOKYO 152,JAPAN
关键词
D O I
10.1016/0022-4596(91)90085-V
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The electrical resistivity, Hall coefficient, magnetoresistance, and magnetic susceptibility of CuS are reported. The compound exhibits excellent metallic conduction among 3d transition metal sulfides. A peculiar temperature dependence of the Hall coefficient is interpreted in terms of two bands of majority holes and minority electrons. The source of the hole carriers is discussed based on Hall effect data and structural considerations. It is concluded that conduction is due to holes in a valence band which is mainly constituted from the 3p orbitals of sulfur. A phase transition close to 55 K is confirmed from the temperature dependence of resistivity and the Hall coefficient. © 1991.
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页码:306 / 311
页数:6
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