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Ferromagnetic ordering and half-metallic state of Sn2Co3S2 with the shandite-type structure

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Schnelle,  W.
Walter Schnelle, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Leithe-Jasper,  A.
Andreas Leithe-Jasper, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Rosner,  H.
Helge Rosner, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Schnelle, W., Leithe-Jasper, A., Rosner, H., Schappacher, F. M., Pöttgen, R., Pielnhofer, F., et al. (2013). Ferromagnetic ordering and half-metallic state of Sn2Co3S2 with the shandite-type structure. Physical Review B, 88(14): 144404, pp. 144404-1-144404-8. doi:10.1103/PhysRevB.88.144404.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0015-1E48-D
Abstract
Single crystalline Sn2Co3S2 with the shandite-type structure was investigated by magnetization, magnetoresistance, Hall effect, and heat capacity measurements and by Sn-119 Mossbauer spectroscopy. Sn2Co3S2 orders ferromagnetically at 172 K with an easy-axis magnetization of approximate to 1 mu(B) along the hexagonal c axis. The half-metallic ferromagnetic state is investigated by detailed band-structure calculations by density functional theory (DFT) methods. The magnetoresistance and the Hall effect as well as the DFT results show that ferromagnetic Sn2Co3S2 is a compensated metal. The Sn-119 Mossbauer spectroscopic data confirm these findings. Large transferred hyperfine fields B-hf up to 34.2 T are observed.