Double Quantum Well Electron-Hole Systems in Strong Magnetic Fields

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概要

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• Two-dimensional electron-hole systems with long excitonic life-times can be real-ized in double quantum well systems by applying an electric field which localizes elec-irons and holes in opposite welts. The ground state of such a system is investigatedtheoretically and numerically in the strong magnetic field limit. It is shown that whenthe separation between the electron layer and the hole layer, d, is small, an excitoniccondensate state is realized. On the other hand, when d is large, either independentfractional quantum Hall states for electrons and holes or coupled Wigner crystal(dipole density wave) states may be realized depending on the filling factor. Thedifference in photoluminescence spectra between tltese states is discussed.[excitonic state, fractional quantum Hall effect, strong magnetic field, Wigner ]l crystal, electron-hole systeml

• 社団法人日本物理学会の論文
• 1990-12-15

著者

• Yoshioka Daijiro

  Department Of Physics Kyushu University

• Yoshioka Daijiro

  Department Of Basic Science Graduate School Of Arts And Sciences University Of Tokyo

• Macdonald Allan

  Department Of Physics University Of Texas At Austin

• Allan H.

  Department of Physics,Indiana University

• Allan H.

  Department Of Physics Indiana University

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