Influence of the Sb concentration onto the spin glass state in the spinel compounds CuCr2−xSbxS4 (where x=0.3, 0.4)

Abstract In the spinels under study the spin glass state was observed at x =0.3, 0.4. The spin-freezing temperature is equal to about 47.4 and 30 K for x =0.3 and 0.4, respectively. The temperature range, in which the spin glass state appears, is much narrower for x =0.3 than for x =0.4. The negative magnetoresistance decreases significantly with the decrease of Sb concentration.