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VOLUME 61 (1995) | ISSUE 3 |
PAGE 209
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New semiconducting spin glass Fe0.67Cn1.33Sn0.67S4 magnetically active ions in both the A and B sublattices
Belov K. P. , Koroleva L. I. , Virovets T. V. , Lukina L.N., Odintsov A. G. , Saifullaeva D. A. , Kesler Ya. A., Filimonov D. S.
The new semiconducting compound Fe067Cri.33Sb067S4, with the spinel structure, has magnetic properties characteristic of spin glasses. Specifically, there is a maximum in the initial susceptibility at the temperature T=Tf. This maximum is suppressed by a static magnetic field Я, and the low-temperature magnetization depends on the thermomagnetic history of the sample. The functional dependence Tj{H,T) obeys the Almeida-Thouless relation. The dependence of Tf on the frequency of the alternating magnetic field is a power law, indicating the existence of a spin-glass-paramagnet phase transition. This is the first spin glass among the chalcospinels to have magnetically active ions in both the A and В sublattices. © 1995 American Institute of Physics.
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