Hole Cyclotron Resonance in p-Type GaAs-AlGaAs Superlattices in High Magnetic Fields
We report two aspects of holes in GaAs-AlGaAs multiple quantum wells, namely the energy band structure and excitonic effects. The valence band structure is studied by cyclotron resonance of two-dimensional holes at high magnetic fields. The heavy hole cyclotron mass strongly depends upon the well size and magnetic field. This behavior is explained by the valence band Hamiltonian. We also discuss the exciton state in a hole plasma. Experimental evidence for the exciton stabilization by magnetic fields is presented.
KeywordsCyclotron Resonance High Magnetic Field Landau Level Heavy Hole Magnetic Field Dependence
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- 2.A.Fasolino and M.Altarelli: Two-Dimensionál Systems, Heterostructures and superlattices, ed. by G.Bauer, F.Kucher, H.Heinrich (Springer 1984) 176Google Scholar
- 3.Y.Iwasa, N.Miura, S.Tarucha, H.Okamoto and T.Ando: Proceedings of the 6th Int. Conf. on EP2DS ed. by T.Ando (Kyoto 1985) 587Google Scholar
- 4.E.Bangert and G.Landwehr: Proceedings of the 6th Int. Conf. on EP2DS ed. by T.Ando (Kyoto 1985) 593Google Scholar
- 8.N.Miura, Y.Iwasa, S.Tarucha, H.Okamoto: Proceedings of the 17th ICPS ed. by J.D.Chadi, W.A.Harrison (San Francisco 1984) 359Google Scholar