Magnetotransport measurements on V2O3 under high pressure

We present resistivity measurements on V2O3 single crystals in the metallic phase at high pressure and low temperatures. From the T-2-coefficient we d erive the pressure-dependent effective mass m*, which shows a steep increas e on approaching the metal-insulator transition from the metallic phase sug gesting a divergence of m* consistent with the model of Brinkman and Rice. This divergence of m* is confirmed by the behavior of the magnetoresistance and the disorder contribution to the conductivity. (C) 1999 Elsevier Scien ce B.V. All rights reserved.