Metallic state of the electron-hole liquid, particularly in germanium

W. F. Brinkman, T. M. Rice, P. W. Anderson, S. T. Chui

Research output: Contribution to journalArticlepeer-review

80 Scopus citations


We have calculated the ground-state energy of an electron-hole liquid. The kinetic and exchange energies are included exactly, and the correlation energy is estimated using Hubbard's modification of the random-phase approximation. In an isotropic electron-hole liquid, the metallic state is not bound relative to free excitons. In Ge the anisotropic band structure leads to a substantial binding of the metallic state. Application of a large 111 strain to Ge reduces the situation to one resembling the isotropic case.

Original languageEnglish (US)
Pages (from-to)961-964
Number of pages4
JournalPhysical review letters
Issue number15
StatePublished - Jan 1 1972
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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