Electronic phase transitions in one-dimensional spinless fermion model with competing interactions

Abstract

An accurate numerical consideration is carried out of the ground state for the simplified model which is traditionally used for the description of Verwey transition and related phenomena. In the framework of 1D spinless fermion model, the effects of next-nearest neighbour (NNN) interaction on the metal-insulator transition are investigated for electron concentrations 1/2 and 2/3. It is shown that for large enough NNN transfer integrals the electronic topological transition of metal-metal type is also possible. The corresponding phase diagrams are presented.

6 pages, 12 Postscript figures, RevTeX

References in corpus (1)

• Insulator-Metal Transition in One Dimension Induced by Long-Range Electronic Interactions

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