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Theory of the one-dimensional Peierls-Hubbard-model

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Zeitschrift für Physik B Condensed Matter

Abstract

We consider the properties of a one-dimensional Hamiltonian for electrons and phonons including the Fröhlich electron-phonon interaction as well as the Hubbard term for electron-electron interaction. The unperturbed band structure is of tight-binding form and half-filled.

We derive the gap equation and the ground-state energy of the system in mean field approximation.

We find antiferromagnetic ordering and lattice distortion and calculate the displacive and magnetic phase limits.

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Authors and Affiliations

  1. Institut für Theoretische Physik — Lehrstuhl D, Rheinisch-Westfälische Technische Hochschule Aachen, Templergraben 64, D-5100, Aachen, Federal Republic of Germany

    I. Egri

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  1. I. Egri
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D82 (Diss. TH Aachen)

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Egri, I. Theory of the one-dimensional Peierls-Hubbard-model. Z Physik B 23, 381–387 (1976). https://doi.org/10.1007/BF01316548

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  • DOI: https://doi.org/10.1007/BF01316548

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