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

doi:10.1021/acs.nanolett.5b02419

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

(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.

Original language	English
Pages (from-to)	27-33
Number of pages	7
Journal	Nano Letters
Volume	16
Issue number	1
DOIs	https://doi.org/10.1021/acs.nanolett.5b02419
Publication status	Published - 2016 Jan 13

Keywords

Optical Aharonov-Bohm effect
Wigner molecule
biexciton
disorder effect
exciton
quantum ring

ASJC Scopus subject areas

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

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10.1021/acs.nanolett.5b02419

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Kim, H. D., Okuyama, R., Kyhm, K., Eto, M., Taylor, R. A., Nicolet, A. L., Potemski, M., Nogues, G., Dang, L. S., Je, K. C., Kim, J., Kyhm, J. H., Yoen, K. H., Lee, E. H., Kim, J. Y., Han, I. K., Choi, W., & Song, J. (2016). Observation of a Biexciton Wigner Molecule by Fractional Optical Aharonov-Bohm Oscillations in a Single Quantum Ring. Nano Letters, 16(1), 27-33. https://doi.org/10.1021/acs.nanolett.5b02419

Kim, HD, Okuyama, R, Kyhm, K, Eto, M, Taylor, RA, Nicolet, AL, Potemski, M, Nogues, G, Dang, LS, Je, KC, Kim, J, Kyhm, JH, Yoen, KH, Lee, EH, Kim, JY, Han, IK, Choi, W & Song, J 2016, 'Observation of a Biexciton Wigner Molecule by Fractional Optical Aharonov-Bohm Oscillations in a Single Quantum Ring', Nano Letters, vol. 16, no. 1, pp. 27-33. https://doi.org/10.1021/acs.nanolett.5b02419

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

abstract = "(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.",

keywords = "Optical Aharonov-Bohm effect, Wigner molecule, biexciton, disorder effect, exciton, quantum ring",

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

note = "Funding Information: This work was supported by the European Commission from the seventh framework programme {"}Transnational Access{"}, contract no. 228043-EuroMagNet II-Integrated Activities, Korean Grant (NRF-2014R1A1A2058789, GRL program), and French-Korean LIA. Publisher Copyright: {\textcopyright} 2015 American Chemical Society.",

year = "2016",

month = jan,

day = "13",

doi = "10.1021/acs.nanolett.5b02419",

language = "English",

volume = "16",

pages = "27--33",

journal = "Nano Letters",

issn = "1530-6984",

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T1 - Observation of a Biexciton Wigner Molecule by Fractional Optical Aharonov-Bohm Oscillations in a Single Quantum Ring

AU - Kim, Hee Dae

AU - Okuyama, Rin

AU - Kyhm, Kwangseuk

AU - Eto, Mikio

AU - Taylor, Robert A.

AU - Nicolet, Aurelien L.

AU - Potemski, Marek

AU - Nogues, Gilles

AU - Dang, Le Si

AU - Je, Ku Chul

AU - Kim, Jongsu

AU - Kyhm, Ji Hoon

AU - Yoen, Kyu Hyoek

AU - Lee, Eun Hye

AU - Kim, Jun Young

AU - Han, Il Ki

AU - Choi, Wonjun

AU - Song, Jindong

N1 - Funding Information: This work was supported by the European Commission from the seventh framework programme "Transnational Access", contract no. 228043-EuroMagNet II-Integrated Activities, Korean Grant (NRF-2014R1A1A2058789, GRL program), and French-Korean LIA. Publisher Copyright: © 2015 American Chemical Society.

PY - 2016/1/13

Y1 - 2016/1/13

N2 - (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.

AB - (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.

KW - Optical Aharonov-Bohm effect

KW - Wigner molecule

KW - biexciton

KW - disorder effect

KW - exciton

KW - quantum ring

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

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Keywords

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