11 June 2003 Magneto-optical and cyclotron resonance study of semiconductor nanostructures in very high magnetic fields
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Abstract
We have studied new features of semiconductor nano-structures in cyclotron resonance and magneto-optical spectroscopy under very high magnetic fields up to a few megagauss. The new features are attributed to the shrinkage of wave-functions of electrons, holes and excitons. In PbSe/PbEuTe quantum dots that are regularly arranged to form an fcc-like lattice, sharp cyclotron resonance peaks from PbSe quantum dots were observed. It was found that the peaks show a number of anomalous features such as splitting, a remarkable dependence of the intensity on the wavelength, or a peculiar angular dependence of the resonance field. In the photoluminescence spectra of excitons for CdSe/ZnSe quantum dots, GaP/AlP and GaAs/AlAs short period superlattices, a remarkable decrease of the peak intensity and a red shift of the exciton peak were observed with increasing magnetic field; these effects are attributed to the general nature of excitons consisting of spatially separated electrons and holes.
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Noboru Miura, Noboru Miura, T. Ikaida, T. Ikaida, K. Uchida, K. Uchida, T. Yasuhira, T. Yasuhira, K. Ono, K. Ono, Y. H. Matsuda, Y. H. Matsuda, G. Springholz, G. Springholz, M. Pinczolits, M. Pinczolits, G. Bauer, G. Bauer, E. Kurtz, E. Kurtz, Claus F. Klingshirn, Claus F. Klingshirn, Y. Shiraki, Y. Shiraki, Yoshiro Hirayama, Yoshiro Hirayama, } "Magneto-optical and cyclotron resonance study of semiconductor nanostructures in very high magnetic fields", Proc. SPIE 5023, 10th International Symposium on Nanostructures: Physics and Technology, (11 June 2003); doi: 10.1117/12.511785; https://doi.org/10.1117/12.511785
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