Metal-insulator transition in thiospinel
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Shoichi Nagata; Takatsugu Hagino; Yoshitaka Seki; Teruo Bitoh
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Article
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1994
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Elsevier Science
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English
β 116 KB
We have discovered the existence of metal-insulator transition at ~220 K in the new thiospinel CuIr2S 4. The electrical conductivity, a, for sintered-powder specimens drops abruptly from 2Γ102 S,cm -1 to 5Γ10-1S'cm -1 at TM\_I-~220 K with decreasing temperature. At temperatures T<TM\_ I, CuIr2S 4 ex