Two-dimensional excitonic phase in strong magnetic fields

Y Kuramoto, C Horie - Solid State Communications, 1978 - Elsevier
The excitonic phase of the coupled electron-hole system which consists of p-and n-channel
inversion layers separated by a thin insulating layer and subjected to a strong magnetic
field, is investigated in the mean field approximation. The spectrum of the symmetry-
restoring collective excitation mode is shown to be consistent with the possible superfluidity
of excitons.
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