MAGNETIC SUSCEPTIBILITY AND NUCLEAR RESONANCE STUDIES OF METAL-INSULATOR TRANSITION OF (V1-x Crx)2O3 AND (V1-xALx)2O3

A. Menth , A. Gossard , J. Remeika

Addition of Cr or Al to V2O3 produces a transition from a metallic phase to a paramagnetic insulating phase. We report the magnetic susceptibility and nuclear magnetic resonance behavior which results from this transition. Susceptibility measurements from 4 °K to 950 °K showed a discrete increase of ~ -0.5 x 10-3 (e. m. u./mole) on passing to the paramagnetic insulating state. The 51V Knight shift increased by ~ 0.1 % in the insulating phase. The results constitute microscopic evidence of a first order change in the electronic structure of the d electrons in the metal-to-insulator transition.

Domaines: Articles anciens

A. Menth, A. Gossard, J. Remeika. MAGNETIC SUSCEPTIBILITY AND NUCLEAR RESONANCE STUDIES OF METAL-INSULATOR TRANSITION OF (V1-x Crx)2O3 AND (V1-xALx)2O3. Journal de Physique Colloques, 1971, 32 (C1), pp.C1-1107-C1-1109. ⟨10.1051/jphyscol:19711394⟩. ⟨jpa-00214434⟩