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Effect of Particle-Hole Asymmetry on the Mott-Hubbard Metal-Insulator Transition

D. O. Demchenko·A. V. Joura·J. K. Freericks
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Abstract

The Mott-Hubbard metal-insulator transition is one of the most important problems in correlated electron systems. In the past decade, much progress has been made on examining a particle-hole symmetric form of the transition in the Hubbard model with dynamical mean field theory where it was found that the electronic self energy develops a pole at the transition. We examine the particle-hole asymmetric metal-insulator transition in the Falicov-Kimball model, and find that a number of features change when the noninteracting density of states has a finite bandwidth. Since, generically particle-hole symmetry is broken in real materials, our results have an impact on understanding the metal-insulator transition in real materials.

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D. O. Demchenko, A. V. Joura, J. K. Freericks. 2004-02-05. Effect of Particle-Hole Asymmetry on the Mott-Hubbard Metal-Insulator Transition. https://doi.org/10.1103/physrevlett.92.216401

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