Optical de Haas oscillations of charged excitons in type-II ZnSe/BeTe quantum wells

被引：4
|
作者：
Ji, Z. W. [1 ]
Enya, Y. [1 ]
Mino, H. [2 ]
Oto, K. [3 ]
Muro, K.
Akimoto, R.
Takeyama, S. [1 ,4 ]
机构：
[1] Univ Tokyo, Inst Solid State Phys, Kashiwanoha 5-1-5, Kashiwa, Chiba 2778581, Japan
[2] Chiba Univ, Grad Sch Sci & Technol, Chiba 2638522, Japan
[3] Chiba Univ, Fac Sci, Dept Phys, Chiba 2638522, Japan
[4] AIST, Ultrafast Photon Dev Lab, Tsukuba, Ibaraki 3058568, Japan
来源：
YAMADA CONFERENCE LX ON RESEARCH IN HIGH MAGNETIC FIELDS | 2006年 / 51卷
关键词：
D O I：
10.1088/1742-6596/51/1/099
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We have studied the optical properties of the modulation n-doped ZnSe/BeTe/ZnSe type-II quantum wells. The reflection spectra have shown typical negatively charged exciton features only in a doped sample. The electron density as well as the mass was determined in high magnetic field (up to 160 T) cyclotron-resonance measurements. Photoluminescence (PL) measurements were performed in pulsed high magnetic fields (up to 42 T) with a Faraday configuration. We found oscillations in both the PL intensity and the peak energy in the doped sample. These oscillations were originated from optical de Haas oscillations. It was found that the observed indirect PL transition occurs via the charged excitons in a type-II quantum configuration.
引用
收藏
页码：427 / +
页数：2
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