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

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

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.

Original languageEnglish
Title of host publicationNanoScience and Technology
PublisherSpringer Verlag
Pages231-254
Number of pages24
DOIs
Publication statusPublished - 2018 Jan 1

Publication series

NameNanoScience and Technology
VolumePart F2
ISSN (Print)1434-4904

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ASJC Scopus subject areas

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

Cite this

Kyhm, K., Kim, H. D., Okuyama, R., Eto, M., Je, K. C., Taylor, R. A., Nogues, G., Dang, L. S., Nicholet, A. A. L., Potemski, M., Kim, J. S., & Song, J. D. (2018). Optical Aharonov-Bohm Oscillations with Disorder Effects and Wigner Molecule in a Single GaAs/AlGaAs Quantum Ring. In NanoScience and Technology (pp. 231-254). (NanoScience and Technology; Vol. Part F2). Springer Verlag. https://doi.org/10.1007/978-3-319-95159-1_9