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Excitons in Mott Insulators

  • M. Héritier
  • P. Lederer

Abstract

In a Mott insulator, excess charge carriers in narrow half-filled degenerate bands form spin polarons. An electron-hole pair forms an exciton embedded in a ferromagnetic volume, the radius of which is large compared to the exciton Bohr radius. If a wide conduction band lies in the Hubbard gap, the exciton radius can be large compared to the hole-polaron radius. Then, depending on the exciton concentration, a gas of excitonic molecules of an electron-hole plasma can be formed.

Keywords

Mott Insulator Exciton Concentration Alternate Lattice Exciton Bohr Radius Polaron Formation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1981

Authors and Affiliations

  • M. Héritier
    • 1
  • P. Lederer
    • 1
  1. 1.Laboratoire de Physique des SolidesUniversité de Paris-SudOrsayFrance

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