A cluster model study of the electron-phonon interaction magnesium diborate

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Abstract

A cluster model of the electron-phonon interaction in magnesium diborate was studied. Magnesium diborate is a new superconductor with temperature constant at 39k. Boron formed stacks of honeycomb layers with magnesium as a space filler as in graphite intercalation compounds. Scanning tunneling and high resolution photoemission spectroscopy measurements showed the temperature dependence of the superconducting gap. Electron-phonon coupling suggested high transition temperature that came from the significant coupling caused by the presence of holes in the top of the band. The orbital-vibronic coupling to understand the frontier orbitals couple with the molecular vibrations was also studied.

Original languageEnglish
Pages (from-to)7344-7347
Number of pages4
JournalJournal of Chemical Physics
Volume115
Issue number16
DOIs
Publication statusPublished - Oct 22 2001

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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