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Electron–Phonon Interaction And Electronic Structure Of Small Metal Clusters

Author

Listed:
  • JIJUN ZHAO

    (Department of Physics and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China;
    Center for Advanced Studies in Science and Technology of Microstructures, 210093, China)

  • XIAOSHUANG CHEN

    (Department of Physics and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China;
    Center for Advanced Studies in Science and Technology of Microstructures, 210093, China)

  • FENGQI LIU

    (Department of Physics and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China;
    Center for Advanced Studies in Science and Technology of Microstructures, 210093, China)

  • GUANGHOU WANG

    (Department of Physics and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China;
    Center for Advanced Studies in Science and Technology of Microstructures, 210093, China)

Abstract

The Su–Schrieffer–Heeger (SSH) Hamiltonian has been extended to study the electron–phonon interaction and the electronic structures of the alkali-like metal clusters. The eigen-energy levels of s valence electrons are obtained from a Hückel-like Hamiltonian including the correction of the electron–phonon interaction in the hopping integral, which is proportional to the variable of bond length. The self-consistent equations for electrons and phonons are solved adiabatically through an iteration process. The energy-level structures of an octahedral Cu6cluster are calculated with variable electron–phonon coupling constant λ to investigate the influence of electron–phonon interaction on the lattice distortion and electronic structures of metal clusters. The size-dependent ionization potential for smallCunclusters are calculated and compared with the experimental results.

Suggested Citation

  • Jijun Zhao & Xiaoshuang Chen & Fengqi Liu & Guanghou Wang, 1996. "Electron–Phonon Interaction And Electronic Structure Of Small Metal Clusters," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 3(01), pages 489-492.
    • Handle: RePEc:wsi:srlxxx:v:03:y:1996:i:01:n:s0218625x96000887
    DOI: 10.1142/S0218625X96000887
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