Magnetoexcitonic states in a quantum ring with the Winternitz-Smorodinsky confinement potential

被引：10

作者：

Atayan, A. K. ^{[1
]}

Kazaryan, E. M. ^{[2
]}

Meliksetyan, A. V. ^{[3
]}

Sarkisyan, H. A. ^{[2
,3
]}

机构：

[1] NAS Armenia, Inst Radiophys & Elect, Ashtarak, Armenia

[2] Russian Armenian Slavon State Univ, Yerevan, Armenia

[3] Yerevan State Univ, Yerevan 375049, Armenia

来源：

JOURNAL OF CONTEMPORARY PHYSICS-ARMENIAN ACADEMY OF SCIENCES | 2010年 / 45卷 / 03期

关键词：

quantum ring; magnetoexcitonic states; confinement potential; Coulomb interaction; PERSISTENT CURRENT; ELECTRONIC STATES; MAGNETIC-FIELDS; ENERGY; EXCITONS; DOTS;

D O I：

10.3103/S1068337210030059

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate magnetoexcitonic states in the Ga1-x Al-1(x) As-1/GaAs/Ga1-x Al-2(x) (2) As quantum ring with the Winternitz-Smorodinsky confinement potential. A homogeneous magnetic field is directed perpendicularly to the ring plane. The Coulomb interaction between the electron and hole is assumed as weak and is considered in the framework of perturbation theory. Obtained results show that the more realistic Winternitz-Smorodinsky confinement potential, which takes into account a peculiar smoothing of the confinement potential profile, leads to raising of the electron energy levels as compared to the case of a finite-height rectangular confinement potential.

引用

页码：126 / 131

页数：6

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