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High temperature magnetic order in zinc sulfide doped with copper

Owens, Frank J. ; Gladczuk, L. ; Szymczak, R. ; Dluzewski, P. ; Wisniewski, A. ; Szymczak, H. ; Golnik, A. ; Bernhard, Christian ; Niedermayer, Ch.

In: Journal of Physics and Chemistry of Solids, 2011, p. -

We report the first observation of magnetic order above room temperature in zinc sulfide doped with Cu²⁺ made by a simple sintering process and detected by ferromagnetic resonance (FMR), SQUID magnetometry and the μSR experiments. FMR study shows nonzero absorption above room temperature indicating a high value of Curie temperature. Field-cooled and zero-field-cooled magnetization data...