Charge conversion of nearly free and impurity bound magneto-trions immersed in 2D electron or hole gas with optically tunable concentration

被引：0

作者：

Jadczak, J. ^{[1
]}

Bryja, L. ^{[1
]}

Misiewicz, J. ^{[1
]}

Wojs, A. ^{[1
]}

Potemski, M. ^{[2
]}

Liu, F. ^{[3
]}

Yakovlev, D. R. ^{[3
]}

Bayer, M. ^{[3
]}

Reuter, D. ^{[4
]}

Wieck, A. D. ^{[4
]}

Nicoll, C. A. ^{[5
]}

Farrer, I. ^{[5
]}

Ritchie, D. A. ^{[5
]}

机构：

[1] Wroclaw Univ Technol, Inst Phys, Wybrzeze Wyspianskiego 27, PL-50370 Wroclaw, Poland

[2] Wroclaw Univ Technol, Inst Phys, Wybrzeze Wyspianskiego 27, PL-50370 Wroclaw, Poland

[3] CNRS, UJF, UPS,INSA, Lab Natl Champs Magnet Intenses, F-38042 Grenoble, France

[4] Tech Univ Dortmund, Experimentelle Phys 2, D-44221 Dortmund, Germany

[5] Ruhr Univ Bochum, Lehrstuhl Angewandte Festkorperphys, D-44780 Bochum, Germany

来源：

20TH INTERNATIONAL CONFERENCE ON THE APPLICATION OF HIGH MAGNETIC FIELDS IN SEMICONDUCTOR PHYSICS (HMF-20) | 2013年 / 456卷

关键词：

EXCITONS;

D O I：

10.1088/1742-6596/456/1/012017

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report collection of precise photoluminescence maps (emission intensity versus energy and magnetic field) of superior-quality two-dimensional hole gases. The maps reveal field evolution of both direct and cyclotron-assisted recombination lines attributed to various excitonic complexes, either moving nearly freely in the plane or bound to the acceptors placed inside or outside the quantum well. Under two-beam illumination (with photon energies below and above the band-gap in the barrier) we were able to control hole concentration (in the same well), and in particular to decrease it beyond the point of p- to n-type conversion. Our results demonstrate contrast between charge conversion of free and acceptor-bound positive trions resulting from the breaking of charge reflection symmetry by a fixed impurity.

引用

页数：4

共 3 条

[1] Coexistence of nearly free and strongly bound trions from magneto-photoluminescence of two-dimensional quantum structures with tunable electron or hole concentration
Jadczak, J.
Bryja, L.
Misiewicz, J.
Wojs, A.
Potemski, M.
Liu, F.
Yakovlev, D. R.
Bayer, M.
Reuter, D.
Wieck, A.
Nicoll, C. A.
Farrer, I.
Ritchie, D. A.
[J]. PHYSICS OF SEMICONDUCTORS, 2013, 1566 : 510 - +
[2] Gate-free tunable 2D/2D heterojunction composed of MoTe2 and 2D electron gas at the surface of KTaO3
Qiu, Jie
Li, Ju
Zhou, Xiaowei
Li, Bocheng
Tian, Xiaochen
Jiang, Yucheng
Zhao, Run
Zhao, Meng
Gao, Ju
Xing, Jie
Liu, Guozhen
[J]. APPLIED PHYSICS LETTERS, 2022, 121 (07)
[3] Spin-to-charge conversion in 2D electron gas and single-layer graphene devices
Ramos, J. G. G. S.
Vasconcelos, T. C.
Barbosa, A. L. R.
[J]. JOURNAL OF APPLIED PHYSICS, 2018, 123 (03)

← 1 →