The Mott transition in V_2 O_3 and Ni Se_x S_{2-x}: insights from dynamical mean field theory

Details The Mott transition in V_2 O_3 and Ni Se_x S_{2-x}: insights from dynamical mean field theory The Mott transition in V_2 O_3 and Ni Se_x S_{2-x}: insights from dynamical mean field theory

1999-11-09

arxiv.org/abs/cond-mat/9911114v1

Physica B 259-261 (1999) 711-714

Physics

Condensed Matter

Strongly Correlated Electrons

Talk presented at SCES 98

Scientific paper

10.1016/S0921-4526(98)01176-4

We discuss some aspects of the pressure (or interaction) driven Mott transition, in three dimensional transition metal oxides by means of dynami cal mean field theory. We isolate the universal properties of the transition from the aspects which depend more on the detailed chemistry of the compounds. In this light we can understand the main differences and the remarkable similarities between these systems. Both theory and experiment converge on the transfer of spectral weight from low energies to high energies as the universal mechanism underlying the Mott transition, and we comment on the possible relevance of these ideas to other metal to non metal transitions.

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