Istituto dei materiali per l'elettronica ed il magnetismo     
Carlini R., Artini C., Borzone G., Masini R., Zanicchi G., Costa G. Synthesis and characterization of the compound CoSbS. In: Journal of Thermal Analysis and Calorimetry, vol. 103 pp. 23 - 27. Springer, 2011.
In the search for new intermetallic materials with high thermoelectric performances, the Co-Sb-S ternary system has been explored and polycrystalline CoSbS samples have been prepared by a vapour phase technique starting from the pure elements. The crystal cell of CoSbS belongs to the Pbca space group and shows an orthorhombic structural arrangement with the following lattice parameters: a = 5.8341(2) A ; b = 5.9477(2) A , and c = 11.6540(4) A . The structure belongs to the pyrite-marcasite family, as Co forms tilted corner- and edge-sharing octahedra with three Sb and three S atoms. Scanning electronic microscopy (SEM), electron-probe microanalysis (EPMA) and X-ray powder diffraction were used to investigate the microstructure and to carry out the structural analysis; the crystal structure was refined by the Rietveld method using the DBWS-9807 program. The thermal stability of CoSbS was investigated referring to the ternary Co-S-Sb phase diagram and by differential thermal analysis (DTA) measurements. Thermoelectric power measurements at room temperature were also performed by a home-made instrument.
URL: http://www.springerlink.com/content/d3g658217660l3t4/
DOI: 10.1007/s10973-010-1034-z
Subject 61.05.cp

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