Gate controlled Aharonov-Bohm-type oscillations from single neutral excitons in quantum rings

被引：62

作者：

Ding, F. ^{[1
,2
,3
,4
]}

Akopian, N. ^{[4
]}

Li, B. ^{[5
]}

Perinetti, U. ^{[4
]}

Govorov, A. ^{[6
]}

Peeters, F. M. ^{[5
]}

Bufon, C. C. Bof ^{[1
]}

Deneke, C. ^{[1
]}

Chen, Y. H. ^{[2
]}

Rastelli, A. ^{[1
]}

Schmidt, O. G. ^{[1
]}

Zwiller, V. ^{[4
]}

机构：

[1] IFW Dresden, Inst Integrat Nanosci, D-01069 Dresden, Germany

[2] Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China

[3] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[4] Delft Univ Technol, Kavli Inst Nanosci, NL-2600 GA Delft, Netherlands

[5] Univ Antwerp, Dept Fys, B-2020 Antwerp, Belgium

[6] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA

来源：

PHYSICAL REVIEW B | 2010年 / 82卷 / 07期

关键词：

ENERGY-SPECTRA;

D O I：

10.1103/PhysRevB.82.075309

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on a magnetophotoluminescence study of single self-assembled semiconductor nanorings which are fabricated by molecular-beam epitaxy combined with AsBr(3) in situ etching. Oscillations in the neutral exciton radiative recombination energy and in the emission intensity are observed under an applied magnetic field. Further, we control the period of the oscillations with a gate potential that modifies the exciton confinement. We infer from the experimental results, combined with calculations, that the exciton Aharonov-Bohm effect may account for the observed effects.

引用

页数：8

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