Charge Transfer Instability with Structural Change:Three-Sites Three-Electrons System

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概要

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• The energy of ground and electronically excited states of a static Peierls-Hubbard-model Hamiltonian is exactly determined for a system of three electrons on threeequivalent sites. For sufficiently strong electron-phonon coupling the ground state ischaracterized by a charge transfer accompanied by a strong lattice distortion. Strongelectronic correlation prevents this kind of symmetry breaking, but a Jahn-Tellerdistortion is then found due to the spin frustration. The transition between thesephases and the existence of metastable states is analysed in detail.

• 社団法人日本物理学会の論文
• 1987-03-15

著者

• Schreiber M

  Institut Fur Physik Universitat Dortmund

• Schreiber Michael

  Institut Fur Physik Universitat Dortmund

関連論文

• Charge Transfer Instability with Structural Change:Three-Sites Three-Electrons System
• Numerical Experiments on the Absorption Lineshape of the Exciton under Lattice Vibrations. V.Impurities

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