Annotation
This paper describes a study of the temperature dependence of the magnetization, paramagnetic susceptibility, and the electrical resistivity of the Cu$_x$ Co$_{1-x}$ Cr$_2$ S$_4$ polycrystalline spinel system. It was found that compositions with 0.5 < x < 1 are ferromagnetic semiconductors with Curie points above room temperature, with anomal location of ferro- and paramagnetic Curie points and with blue shift of the width of the forbidden zone.
© 2016 Publisher M.V.Lomonosov Moscow State University
Authors
K.P. Belov, L.I. Koroleva, M.A. Shalimova, V.Yu. Pavlov, I.V. Gordeev and Ya.A. Kesler
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