New magnetic semiconductors CuCr 1.5+x Sb 0.5-x S 4 (0≤x≤0.3)
Dilaram A. SaifullaevaSamarkand State Univ. (Uzbekistan)Shahlo F. SolievaSamarkand State Univ. (Uzbekistan)A. I. MuminovSamarkand State Univ. (Uzbekistan)
Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIEjournal2002en
ABI
Abstract
New compounds with spinel structure CuCr<sub>1.5+x</sub>Sb<sub>0.5-x</sub>S<sub>4</sub>(0≤x≤0.3) were obtained and studied in detail. All the compounds are non-degenerate semiconductores. The compounds (0≤x≤0.1) were found to have the magnetic properties characteristic for antiferromagnets. Compounds (0.2≤x≤0.3) have a spontaneous magnetization, with the Curie point of the compound with x=0.3, T<sub>c</sub> = 334 K, being higher than room temperature. The re-entrant spin glass transition is observed in the compounds with x=0.17;0.2)
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