Abstract
The principal susceptibilities of single crystals of Ti2O3 and V2O3 have been measured from 4.2°K to 300°K by means of a vibrating sample magnetometer. In Ti2O3, χ∥ = 9×10−7 cgs/g and χ⊥ = 8×10−7 cgs/g,and both susceptibilities are nearly temperature independent. In V2O3, below the transition temperature T0, χ∥ = 6.9×10−6 cgs/g and χ⊥ = 5.9×10−6 cgs/g and both are temperature independent. The small, almost equal, and temperature independent values of both χ∥ and χ⊥ below T0 confirm recent neutron diffraction data which indicate no appreciable long-range antiferromagnetic order for these oxides. Van Vleck temperature independent paramagnetism can account for the observed values. It is concluded that the observed discontinuities of susceptibility and corresponding electrical conductivity changes are not due to long-range magnetic ordering effects.
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