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

On the influence of Sb concentration on the magnetization and magnetoresistivity in the spinel compounds CuCr2−xSbxS4 (where x = 0.3, 0.4, 0.5)

“…The evolution of the above described magnetization with the increase of x is in good agreement with the appearance of both a spin-glass state for x = 0.3 and 0.4 [3,4,6,7] and collinear antiferromagnetism for x = 0.5 [5].…”

“…Comparing the latter temperature dependence with the analogous dependences taken at about 0.015 T (see Fig. 1 in [4]) and at 0.12 T (see Fig. 2 in [4]), respectively, one comes to the conclusion that the higher the external field the lower the values of the susceptibility.…”

“…1 in [4]) and at 0.12 T (see Fig. 2 in [4]), respectively, one comes to the conclusion that the higher the external field the lower the values of the susceptibility. Moreover the broad peak at about 75 K, observed in the curves mentioned above and taken at 0.015 and 0.12 T, vanishes.…”

“…The dilution of the magnetic subarray of chromium ions by introducing nonmagnetic ions in these compounds can influence their magnetic and electrical properties. An example of such effects present the compounds of the spinel family CuCr 2−x Sb x S 4 [3][4][5]. In the latter compounds a spin glass state was observed for x = 0.3 and 0.4 at low temperatures (below 150 K) [3,4,6,7].…”

“…An example of such effects present the compounds of the spinel family CuCr 2−x Sb x S 4 [3][4][5]. In the latter compounds a spin glass state was observed for x = 0.3 and 0.4 at low temperatures (below 150 K) [3,4,6,7]. Moreover, the coexistence of a high negative magnetoresistivity and the spin-glass state was observed for x = 0.4.…”