Optical Aharonov-Bohm oscillations in InGaAs quantum wells

L. Schweidenback; T. Ali; A. H. Russ; J. R. Murphy; A. N. Cartwright; A. Petrou; C. H. Li; M. K. Yakes; G. Kioseoglou; B. T. Jonker; A. Govorov

doi:10.1103/PhysRevB.85.245310

Optical Aharonov-Bohm oscillations in InGaAs quantum wells

L. Schweidenback, T. Ali, A. H. Russ, J. R. Murphy, A. N. Cartwright, A. Petrou, C. H. Li, M. K. Yakes, G. Kioseoglou, B. T. Jonker, A. Govorov

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

5 Citations (Scopus)

Abstract

The intensity of photoluminescence emission in InGaAs/GaAs quantum wells (QWs) exhibits local maxima as a function of magnetic field applied perpendicular to the QW plane at low temperatures. These maxima are attributed to the optical Aharonov-Bohm effect associated with spatially indirect excitons that are formed in the vicinity of indium-rich InGaAs islands within the QW. Analysis of the data yields the radius of the exciton. The exciton linewidth also oscillates with the magnetic field and exhibits maxima that are shifted slightly to higher field values than those of the luminescence intensity maxima.

Original language	English
Article number	245310
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	85
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevB.85.245310
Publication status	Published - Jun 15 2012
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.85.245310

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title = "Optical Aharonov-Bohm oscillations in InGaAs quantum wells",

abstract = "The intensity of photoluminescence emission in InGaAs/GaAs quantum wells (QWs) exhibits local maxima as a function of magnetic field applied perpendicular to the QW plane at low temperatures. These maxima are attributed to the optical Aharonov-Bohm effect associated with spatially indirect excitons that are formed in the vicinity of indium-rich InGaAs islands within the QW. Analysis of the data yields the radius of the exciton. The exciton linewidth also oscillates with the magnetic field and exhibits maxima that are shifted slightly to higher field values than those of the luminescence intensity maxima.",

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AU - Schweidenback, L.

AU - Ali, T.

AU - Russ, A. H.

AU - Murphy, J. R.

AU - Cartwright, A. N.

AU - Petrou, A.

AU - Li, C. H.

AU - Yakes, M. K.

AU - Kioseoglou, G.

AU - Jonker, B. T.

AU - Govorov, A.

PY - 2012/6/15

Y1 - 2012/6/15

N2 - The intensity of photoluminescence emission in InGaAs/GaAs quantum wells (QWs) exhibits local maxima as a function of magnetic field applied perpendicular to the QW plane at low temperatures. These maxima are attributed to the optical Aharonov-Bohm effect associated with spatially indirect excitons that are formed in the vicinity of indium-rich InGaAs islands within the QW. Analysis of the data yields the radius of the exciton. The exciton linewidth also oscillates with the magnetic field and exhibits maxima that are shifted slightly to higher field values than those of the luminescence intensity maxima.

AB - The intensity of photoluminescence emission in InGaAs/GaAs quantum wells (QWs) exhibits local maxima as a function of magnetic field applied perpendicular to the QW plane at low temperatures. These maxima are attributed to the optical Aharonov-Bohm effect associated with spatially indirect excitons that are formed in the vicinity of indium-rich InGaAs islands within the QW. Analysis of the data yields the radius of the exciton. The exciton linewidth also oscillates with the magnetic field and exhibits maxima that are shifted slightly to higher field values than those of the luminescence intensity maxima.

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JO - Physical Review B-Condensed Matter

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Optical Aharonov-Bohm oscillations in InGaAs quantum wells

Abstract

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