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Proceedings Paper

Magneto-optical and cyclotron resonance study of semiconductor nanostructures in very high magnetic fields
Author(s): Noboru Miura; T. Ikaida; K. Uchida; T. Yasuhira; K. Ono; Y. H. Matsuda; G. Springholz; M. Pinczolits; G. Bauer; E. Kurtz; Claus F. Klingshirn; Y. Shiraki; Yoshiro Hirayama
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Paper 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.

Paper Details

Date Published: 11 June 2003
PDF: 6 pages
Proc. SPIE 5023, 10th International Symposium on Nanostructures: Physics and Technology, (11 June 2003); doi: 10.1117/12.511785
Show Author Affiliations
Noboru Miura, Univ. of Tokyo (Japan)
T. Ikaida, Univ. of Tokyo (Japan)
K. Uchida, Univ. of Tokyo (Japan)
T. Yasuhira, Univ. of Tokyo (Japan)
K. Ono, Univ. of Tokyo (Japan)
Y. H. Matsuda, Univ. of Tokyo (Japan)
G. Springholz, Johannes Kepler Univ. Linz (Austria)
M. Pinczolits, Johannes Kepler Univ. Linz (Austria)
G. Bauer, Johannes Kepler Univ. Linz (Austria)
E. Kurtz, Univ. Karlsruhe (Germany)
Claus F. Klingshirn, Univ. Karlsruhe (Germany)
Y. Shiraki, Univ. of Tokyo (Japan)
Yoshiro Hirayama, NTT Basic Research Lab. (Japan)

Published in SPIE Proceedings Vol. 5023:
10th International Symposium on Nanostructures: Physics and Technology
Zhores I. Alferov; Leo Esaki, Editor(s)

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