Phase transition spin glass-long magnetic order in new thiospinels containing Cu, Cr and Sbстатья
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Дата последнего поиска статьи во внешних источниках: 2 апреля 2015 г.
Аннотация:The reentrant spin-glass transition was found in the samples of solid solutions CuCr1.5+0.5x Sb0.5-0.5xS4 with x = 0.34 and 0.4. The transition temperature to the spin-glass state T-f, determined from the bend on the temperature dependence of the initial susceptibility in an ac magnetic field, depends on the measurement frequency. It was shown that the dependence T-f(omega) obeys the power law 1/omega = (1/omega(0))[T-f/(T-f-T*)](zv) assuming existence of the phase transition at T*. The maximum of the temperature dependence of electroresistivity was found for the sample with x = 0.34 in T* region. These facts show that considered spin-glass-long magnetic order transition is the phase transition.