Synthesis and characterisation of the anion-ordered tellurides MGeTe (M = Co, Rh)

Vaqueiro, P. ORCID: https://orcid.org/0000-0001-7545-6262, Sobany, G. G., Guinet, F. and Leyva-Bailen, P. (2009) Synthesis and characterisation of the anion-ordered tellurides MGeTe (M = Co, Rh). Solid State Sciences, 11 (6). pp. 1077-1082. ISSN 1293-2558 doi: 10.1016/j.solidstatesciences.2009.02.012

Abstract/Summary

The synthesis and structural characterisation, carried out using a combination of single-crystal and powder X-ray diffraction, of the materials MGeTe (M = Co, Rh) are described. These phases adopt an ordered α-NiAs2 structure, which can be considered intermediate between those of pyrite and marcasite. Electrical resistivity and Seebeck coefficient measurements, carried out over the temperature range 77 ≤ T/K ≤ 325, indicate that these materials are n-type semiconductors.