Phase diagram of two-dimensional electro
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Kenichi Asano; Tetsuo Ogawa
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Article
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2008
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Elsevier Science
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English
β 133 KB
We investigated the ground state of the electron-hole Hubbard model by the slave-boson mean field approximation, taking into account the spin degrees of freedom of electrons and holes. We find three phases: electron-hole plasma, exciton-gas, and biexciton-gas phases.