Metal insulator transition is investigated on the Hubbard model of which the interatomic hopping energy is dependent on the volume of the system. The electron correlation is treated with the use of the method developed by the author before. It is shown that a first order transition with a critical point exist for an appropriate values of parameters although the result is quantitatively unsatisfactory.

Progress of Theoretical PhysicsSep 1, 19767 citations

physica status solidi (b)

Study of Electron‐Electron Correlations in Metals by Numerical Methods

Yu. A. Babanw, V. E. Naǐsh, O. B. Sokolov, V. K. Finashkin

Published Apr 1, 1973• 11 citations

Publisher

DOI: 10.1002/pssb.2220560251

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The Hubbard model with additional intersite interaction `

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