Camel's back induced stabilization of electron-hole liquids : GaP |
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| Authors: | D Bimberg MS Skolnick LM Sander |
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| Institution: | Hochfeld-Magnetlabor des Max-Planck-Instituts für Festkörperforschung, 166 X, 38042 Grenoble Cédex, France;Physics Department, University of Michigan, Ann Arbor, Michigan, 48103, USA |
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| Abstract: | A camel's back-like nonparabolicity of the longitudinal electron mass enhances the density of states and strongly stabilized an electron-hole-liquid. In GaP therefore the EHL density is doubled to 8.6 × 1818cm?3 and the Fermi energy ratio EFh/EFe changes from 1.9 to 4.9. The theoretical binding energy agrees with the experimental EB=17.5±3meV interpreting the luminescence at 2.30 eV as a superposition of liquid and plasma recombination radiation. |
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