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Tuneable anisotropy and magnetism in Sn2Co3S2–xSex – probed by 119Sn Mößbauer Spectroscopy and DFT studies

Weihrich, Richard ; Yan, W. ; Rothballer, J. ; Peter, Ph. ; Rommel, S. ; Haumann, S. ; Winter, F. ; Schwickert, Ch. ; Pöttgen, R.



Abstract

The half metal (HFM) Sn2Co3S2 shows a fascinating S = 1/2 magnetism. Anisotropic coupling of spins in and between Co Kagomé layers by Sn sites is now studied from the substitution effects of S by Se by systematic and local experimental and first principles data. Trends in crystal structure changes (c/a ratio) as retrieved from XRD data on the solid solution Sn2Co3S2−xSex are complemented by DFT ...

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