Title of article :
Phase diagram of two-dimensional electron–hole Hubbard model
Author/Authors :
Kenichi Asano، نويسنده , , Tetsuo Ogawa، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2008
Abstract :
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.
Keywords :
Electron–hole system , Exciton Mott transition , Two-dimensional systems , Slave-boson mean field approximation
Journal title :
Physica E Low-dimensional Systems and Nanostructures
Journal title :
Physica E Low-dimensional Systems and Nanostructures
