期刊
SOLID STATE SCIENCES
卷 11, 期 2, 页码 513-518出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solidstatesciences.2008.06.017
关键词
Shandite; Half-metallic ferromagnet; Neutron diffraction
资金
- UK EPSRC. PV
- Engineering and Physical Sciences Research Council [GR/S54982/01] Funding Source: researchfish
Variable-temperature powder neutron diffraction data reveal that Co3Sn2S2 crystallizes in the shandite structure (space group R (3) over barm, a = 5.36855(3)angstrom, c = 13.1903(1) angstrom at 300 K). The structural relationship between Co3Sn2S2 and the intermetallic compound CoSn, both of which contain Kagome nets of cobalt atoms, is discussed. Resistivity and Seebeck coefficient measurements for Co3Sn2S2 are consistent with metallic behaviour. Magnetic susceptibility measurements indicate that Co3Sn2S2 orders ferromagnetically at 180(10) K, with a saturation moment of 0.29 mu(B) per cobalt atom at 5 K. The onset of magnetic ordering is accompanied by marked anomalies in the electrical transport properties. (c) 2008 Elsevier Masson SAS. All rights reserved.
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