Magnetic Properties of (Cr_1-xTi_x)₃Te₄

Abstract

Magnetizations and magnetic susceptibilities are investigated on the defect NiAs-type (Cr 1- x Ti x ) 3 Te 4 [0.00≤ x ≤1.00]. A temperature-independent paramagnetic susceptibility [1.8×10 -4 emu/mole] is found in Ti 3 Te 4 . 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 d T t ( x )/d x has the negative sign, and those of θ p ( x ) positive ones. These features are compared with the results on (Cr 1- w Rh w ) 3 Te 4 and (Cr 1- u V_u)_3 T e 4 in which spin-glass like states have been found.