Observation of a Biexciton Wigner Molecule by Fractional Optical Aharonov-Bohm Oscillations in a Single Quantum Ring

Hee Dae Kim, Rin Okuyama, Kwangseuk Kyhm, Mikio Eto, Robert A. Taylor, Aurelien L. Nicolet, Marek Potemski, Gilles Nogues, Le Si Dang, Ku Chul Je, Jongsu Kim, Ji Hoon Kyhm, Kyu Hyoek Yoen, Eun Hye Lee, Jun Young Kim, Il Ki Han, Wonjun Choi, Jindong Song

研究成果: Article査読

29 被引用数 (Scopus)

抄録

(Graph Presented) The Aharonov-Bohm effect in ring structures in the presence of electronic correlation and disorder is an open issue. We report novel oscillations of a strongly correlated exciton pair, similar to a Wigner molecule, in a single nanoquantum ring, where the emission energy changes abruptly at the transition magnetic field with a fractional oscillation period compared to that of the exciton, a so-called fractional optical Aharonov-Bohm oscillation. We have also observed modulated optical Aharonov-Bohm oscillations of an electron-hole pair and an anticrossing of the photoluminescence spectrum at the transition magnetic field, which are associated with disorder effects such as localization, built-in electric field, and impurities.

本文言語English
ページ(範囲)27-33
ページ数7
ジャーナルNano Letters
16
1
DOI
出版ステータスPublished - 2016 1 13

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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