Existence of Dipole-Density-Wave (DDW) State in Electron-Hole Junction Systems
Daijiro YoshiokaThe Institute for Solid State Physics, The University of TokyoHidetoshi FukuyamaThe Institute for Solid State Physics, The University of Tokyo
1978en
ABI
Abstract
Ground states are investigated of a two dimensional electron-hole system in a magnetic field where electrons and holes move on parallel planes which are spatially separated. Especially a crystalline state of dipoles or a dipole-density-wave (DDW) state is considered. Such states are found to be stabilized by a magnetic field, since it is shown that the field increases the effective mass of a dipole. A phase diagram in the plane of density and magnetic field is obtained.
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