Magnetic Properties of (Cr_1−xTi_x)₃Te₄

Abstract

Magnetizations and magnetic susceptibilities are investigated on the defect NiAs-type (Cr_1−xTi_x)₃Te₄ [0.00≤x≤1.00]. A temperature-independent paramagnetic susceptibility [1.8×10⁻⁴ emu/mole] is found in Ti₃Te₄. The Curie temperature T_c(x), the canted spin transition temperature T_t(x) and the Weiss constant θ_p(x) decrease as x increases. A downward convex is observed around x=0.67 on the T_c(x) vs x curve. The spontaneous magnetization at 4.2 K is still retained at the sample with x=0.95. The observed value of dT_t(x)⁄dx has the negative sign, and those of θ_p(x) positive ones. These features are compared with the results on (Cr_1−wRh_w)₃Te₄ and (Cr_1−uV_u)₃Te₄ in which spin-glass like states have been found.