Abstract
Reentrant behavior to a spin glass state is discovered in the solid solution system CuCr1.5+0.5x Sb x0.5−0.5 x S 4 with x=0.34 and 0.4. The spin-glass transition temperature T f determined from the kink in the temperature dependence of the initial susceptibility in an alternating magnetic field depends on the measurement frequency ω. It is shown that the frequency dependence T f (ω) is a power-law function 1/ω=(1/ω0)[T f /( T f − T *)]zv with zv =7.7 for both compositions. For the composition with x =0.34 a maximum is observed near T * in the temperature dependence of the resistivity. These facts indicate that the transition from the spin glass to long-range magnetic order is a phase transition.
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Pis’ma Zh. Éksp. Teor. Fiz. 64, No. 4, 265–269 (25 August 1996)
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Belov, K.P., Virovets, T.V., Koroleva, L.I. et al. Phase transition from spin glass to long-range magnetic order in semiconductor spinels CuCr1.5+0.5x Sb0.5−0.5x S4 (x=0.34 and 0.4). Jetp Lett. 64, 292–297 (1996). https://doi.org/10.1134/1.567185
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DOI: https://doi.org/10.1134/1.567185