Coherent-Potential-Approximation Calculation on the Falicov-Kimball Model of the Metal-Insulator Transition

7 February 1972

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 28 (6) , 361-363
https://doi.org/10.1103/physrevlett.28.361

Abstract

We solve the Falicov-Kimball model of the metal-insulator transition in the coherent-potential approximation. This yields exact results in certain limits in which molecular field theory is incorrect, and it is a better approximation over the whole range of the parameters. We find that, at least below the point at which bound states appear, all phase transitions vanish.

Keywords

This publication has 5 references indexed in Scilit:

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Physical Review B, 1970
Paramagnetic $Ni Cu$ Alloys: Electronic Density of States in the Coherent-Potential Approximation
Physical Review B, 1970
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Physical Review Letters, 1969
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Physical Review B, 1967
Electron correlations in narrow energy bands III. An improved solution
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