Enhanced magneto-optical oscillations from two-dimensional hole-gases in the presence of Mn ions

被引：5

作者：

Gazoto, A. L. ^{[1
]}

Brasil, M. J. S. P. ^{[1
]}

Iikawa, F.

Brum, J. A. ^{[1
]}

Ribeiro, E. ^{[2
]}

Danilov, Yu. A. ^{[3
]}

Vikhrova, O. V. ^{[3
]}

Zvonkov, B. N. ^{[3
]}

机构：

[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Sao Paulo, Brazil

[2] Univ Fed Parana, Dept Fis, BR-81531980 Curitiba, Parana, Brazil

[3] Univ Nizhni Novgorod, Phys Tech Res Inst, Nizhnii Novgorod 603950, Russia

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 25期

基金：

巴西圣保罗研究基金会;

关键词：

diamagnetic materials; doping profiles; gallium arsenide; III-V semiconductors; indium compounds; magnetic impurities; magneto-optical effects; manganese; semiconductor doping; semiconductor quantum wells; semimagnetic semiconductors; two-dimensional hole gas; MAGNETIC-FIELDS; QUANTUM-WELLS; ELECTRON-GAS; EMISSION;

D O I：

10.1063/1.3601477

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigated the effects of nearby Mn ions on the optical properties of two-dimensional hole-gases confined in InGaAs/GaAs quantum wells. We observed energy oscillations on both the averaged emission and the spin-splitting energies, whereas the first one presents maxima at all integer filling factors, and the second one, solely at odd-filling factors. The strength of the oscillations clearly increases with the Mn concentration. Furthermore, considering the relatively low-mobility of our structures, the oscillations are surprisingly strong and robust, persisting up to relatively high temperatures and excitation intensities. (C) 2011 American Institute of Physics. [doi:10.1063/1.3601477]

引用

页数：3

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