SUBSTITUTIONAL STUDIES ON THE ANISOTROPIC, SEMICONDUCTING, MOLYBDENUM BRONZE, LI0.33MOO3

Pure Li//0//. //3//3MoO//3 and vanadium-doped Li//0//. //3//3Mo//1// minus //xV//xO//3 crystals were grown by a temperature gradient flux technique. Directional electrical resistivity measurements have been made on both the pure and doped crystals. The electrical properties of Li//0//. //3//3MoO//3 are highly anisotropic with resistivity values at room temperature of 1. 8 multiplied by 10** minus **1 and 6. 0 multiplied by 10**2 OMEGA cm along the c and b*** directions, respectively. Li//0//. //3//3 MoO//3 shows complex semiconducting behavior and an anomalously low paramagnetic signal. The effects of vanadium substitution on the structure and transport properties of Li//0//. //3//3MoO//3 are dramatic. Attempts are made to correlate the observed electrical and magnetic behavior with the structure of Li//0//. //3//3MoO//3.