Spin-Related Effects in III-V Semiconductors
For many purposes we can ignore the spin of electrons and holes in semiconductors. Thus an exciton in GaAs is often treated as a two level system although in reality the 1s orbital level of the electron and hole consists of several different states corresponding to different orientations of the spins of the particles. The degeneracy of the spin states can be removed by spin-orbit interaction, by low symmetry crystal fields, by exchange interactions and by applied magnetic fields. Clearly this fine structure needs to be considered in the context of coherent optical phenomena since spin reorientation may be significant for optical dephasing and splittings can give rise to quantum beating.
KeywordsElectron Spin Resonance Spin Polarisation Circular Polarisation Landau Level Spin Relaxation
Unable to display preview. Download preview PDF.
- M.Z. Maialle, E.A. de Andrada e Silva and L.J. Sham, Phys.Rev. (to be published).Google Scholar
- Optical Orientation, edited by F. Meier and B.P. Zakharchenya, (North Holland, Amsterdam, 1984).Google Scholar
- W. Ossau, B. Jäkel, E. Bangert and G. Weimann, NATO Advanced Study Institutes Ser.B. Vol. 183 (Plenum, New York, 1988) p.285.Google Scholar
- E. Blackwood, PhD Thesis 1993 (Southampton University, Unpublished).Google Scholar
- M.J. Snelling, PhD Thesis 1991 (Southampton University, Unpublished).Google Scholar
- S.R. Andrews, Private Communication.Google Scholar
- A. Vinattieri, J. Shah, T.C. Damen, D.S. Kim, L.N. Pfeiffer and L.J. Sham (preprint).Google Scholar
- M.I. D’yakanov and V. Yu. Kacharovskii, Sov.Phys.Semicond. 20 110 (1986).Google Scholar
- A.N. Titkov, V.I. Safarov and G. Lampel, Proc.14th Int.Conf.of the Physics of Semiconductors, Edinburgh 1978 (Conference Series No.43, The Institute of Physics, Bristol) ed. B.L.H. Wilson p. 1031; Also see reference 10 p. 73.Google Scholar