Electrical properties of InxMCh2 (M ≡ Nb, Ta; Ch ≡ S, Se)

Sunandana, C. S. ; Chandrasekaran, K. ; Aravamudan, G. ; Subba Rao, G. V. (1982) Electrical properties of InxMCh2 (M ≡ Nb, Ta; Ch ≡ S, Se) Journal of the Less Common Metals, 84 . pp. 115-118. ISSN 0022-5088

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Related URL: http://dx.doi.org/10.1016/0022-5088(82)90135-7


Layered intercalation compounds InxMCh2 (x = 0.67, 1.0) crystallize in an interesting 1T polymorph of the hexagonal structure in which the indium atoms adopt either a linear or a trigonal prismatic coordination with the chalcogens and the M atoms adopt a trigonal prismatic coordination. We measured the electrical resistivities and the Seebeck coefficients of systems of this type in the range 77-300 K. All the compounds were n type except InTaS2 which exhibited p-type metallic conductivity. No phase transitions were noted. The results are discussed in terms of charge transfer from the indium to the MCh2 layers.

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Deposited On:02 Aug 2011 08:03
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