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In Search for Novel Sn2Co3S2-based Half-metal Ferromagnets
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Florian Pielnhofer
Published/Copyright:
June 2, 2014
Substitution effects on magnetism of shandite-type compounds have been studied by density functional theory. The decrease of the Fermi level in the novel half-metallic ferromagnet Sn2Co3S2 to higher maxima of the density of states was modeled for substitutions on the Co site by the 3d metals Fe, Mn and Cr due to a rigid band scheme. Spin-polarized energy hyper surfaces and densities of states are calculated for Sn2Co3S2, and experimentally not yet known Sn2Fe3S2, Sn2Mn3S2 and Sn2Cr3S2 with shandite-type structure. The stability of half-metallic ferromagnetic characteristics, Slater-Pauling behavior, and alternative metastable spin states are discussed.
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In Search for Novel Sn2Co3S2-based Half-metal Ferromagnets
Received: 2013-7-30
Published Online: 2014-6-2
Published in Print: 2014-1-1
© 1946 – 2014: Verlag der Zeitschrift für Naturforschung
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