Magneto-optical and cyclotron resonance study of semiconductor nanostructures in very high magnetic fields

N. Miura, T. Ikaida, K. Uchida, T. Yasuhira, K. Ono, Y. H. Matsuda, G. Springholz, M. Pinczolits, G. Bauer, E. Kurtz, C. Klingshirn, Y. Shiraki, Y. Hirayama

Research output: Contribution to journalConference articlepeer-review


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.

Original languageEnglish
Pages (from-to)134-139
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2003
Event10th International Symposium on Nanostructures: Physics and Technology - St. Petersburg, Russian Federation
Duration: 2002 Jun 172002 Jun 21


  • Cyclotron resonance
  • Excitons
  • High magnetic fields
  • Magento-optics
  • Quantum dots


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