Optical Aharonov-Bohm Oscillations with Disorder Effects and Wigner Molecule in a Single GaAs/AlGaAs Quantum Ring

K. Kyhm, H. D. Kim, R. Okuyama, Mikio Eto, K. C. Je, R. A. Taylor, G. Nogues, L. S. Dang, A. A.L. Nicholet, M. Potemski, J. S. Kim, J. D. Song

研究成果: Chapter

抄録

The optical Aharonov-Bohm effect in a single quantum ring is associated with disorder effects. In the presence of structure anisotropy, localisation, internal electric field, and impurity scattering, optical Aharonov-Bohm oscillations of an electron-hole pair become modulated. Additionally, provided that a strongly correlated exciton pair is formed in a single quantum ring similar to the Wigner molecule, novel oscillations can be observed for increasing magnetic field. In this case, the biexciton emission energy changes abruptly at transition magnetic fields with a fractional oscillation period compared to that of the exciton, the so-called fractional optical Aharonov-Bohm oscillations.

本文言語English
ホスト出版物のタイトルNanoScience and Technology
出版社Springer Verlag
ページ231-254
ページ数24
DOI
出版ステータスPublished - 2018 1 1

出版物シリーズ

名前NanoScience and Technology
Part F2
ISSN(印刷版)1434-4904

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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