THE PROPERTIES OF STRONG-COUPLING IMPURITY BOUND MAGNETOPOLARON IN AN ANISOTROPIC QUANTUM DOT

被引:10
作者
Xiao, Wei [2 ]
Xiao, Jing-Lin [1 ]
机构
[1] Inner Mongolian Univ Nationalities, Coll Phys & Elect Informat, Tongliao 028043, Peoples R China
[2] Univ Informat Sci & Technol Beijing, Dept Basic, Beijing 100101, Peoples R China
来源
INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2011年 / 25卷 / 26期
基金
美国国家科学基金会;
关键词
Anisotropic quantum dot; impurity bound magnetopolaron; vibrational frequency; ground-state energy; ground-state binding energy; linear combination operator; POLARONIC ENERGY-LEVELS; MAGNETIC-FIELDS; BINDING-ENERGY;
D O I
10.1142/S0217979211101259
中图分类号
O59 [应用物理学];
学科分类号
摘要
We study the vibrational frequency, the ground-state energy and the ground-state binding energy of the strong-coupling impurity bound magnetopolaron in an anisotropic quantum dot. The effects of the transverse and longitudinal effective confinement lengths, the electron-phonon coupling strength, the cyclotron frequency of a magnetic field and the Coulomb bound potential are taken into consideration by using an linear combination operator and unitary transformation methods. It is found that the vibrational frequency, the ground-state energy and the ground-state binding energy will increase rapidly with decreasing confinement lengths. The vibrational frequency is an increasing function of the Coulomb bound potential, the electron-phonon coupling strength and cyclotron frequency, whereas the ground-state energy is a decreasing function of the potential and coupling strength, and the ground-state binding energy is an increasing function of the potential and coupling strength. The ground-state energy and the ground-state binding energy increases with increasing cyclotron frequency.
引用
收藏
页码:3485 / 3494
页数:10
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