Magnetoexcitons in type-II quantum dots

被引：45
|
作者：
Kalameitsev, AB [1 ]
Kovalev, VM
Govorov, AO
机构：
[1] Russian Acad Sci, Inst Semicond Phys, Novosibirsk 630090, Russia
[2] Univ Munich, Ctr Nanosci, D-80539 Munich, Germany
[3] Univ Munich, Sekt Phys, D-80539 Munich, Germany
来源：
JETP LETTERS | 1998年 / 68卷 / 08期
关键词：
D O I：
10.1134/1.567926
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The ground state of a spatially indirect exciton in type-II quantum dots with a short-range potential acquires nonzero angular momentum in the presence of a magnetic field oriented perpendicular to the plane of the system. The critical magnetic field of the transition to a ground state with nonzero angular momentum depends on the radius of the quantum dot. Such a transition can be observed as quenching of luminescence by a magnetic field in quantum dots of the GaSb/GaAs system, for example. (C) 1998 American Institute of Physics. [S0021-3640(98)00820-2].
引用
收藏
页码：669 / 672
页数：4
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