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Electron-hole liquid in the hexaborides

M. E. Zhitomirsky·T. M. Rice
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Abstract

We investigate the energetics of the electron-hole liquid in stoichiometric divalent metal hexaborides. The ground state energy of an electron-hole plasma is calculated using RPA and Hubbard schemes and compared to the binding energy of a single exciton. Intervalley scattering processes play an important role in increasing this binding energy and stabilizing a dilute Bose gas of excitons.

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M. E. Zhitomirsky, T. M. Rice. 1999-10-20. Electron-hole liquid in the hexaborides. https://doi.org/10.1103/physrevb.62.1492

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