发光学报2007，Vol.28Issue(3)：307-312,6.
电场对量子阱中强耦合磁极化子性质的影响
Influence of Electric Field on Properties of Strong-coupling Magnetopolaron in Quantum Well
摘要
Abstract
The influence of electric field on properties of strong-coupling magnetopolaron in quantum well was investigated using linear-combination operator and unitary transformation method. The ground state energy and vibration frequency of magnetopolaron were obtained. The effects of well-width L, electric field strength F and the cyclotron frequency ωc of magnetic field on the ground state energy were discussed. The relations of the ground state energy of the magnetopolaron with the coupling constant, the well-width and the electric field strength are derived. Numerical calculations illustrated that the absolute value of the ground state energy of the strong-coupling magnetopolaron will decrease with increasing the well-width and increase with increasing the external electric field strength. The absolute value of the ground state energy of the strong-coupling magnetopolaron will rise with increasing the cyclotron fre-quency. The smaller well-wider and the larger is the absolute value of the ground state energy of the magnetopolaron, the peculiar quantum size effect is significant.关键词
线性组合算符/磁极化子/量子阱/电场Key words
linear combination operator/magnetopolaron/quantum-well/electric field分类
数理科学引用本文复制引用
单淑萍,肖景林..电场对量子阱中强耦合磁极化子性质的影响[J].发光学报,2007,28(3):307-312,6.基金项目
Project supported by Natural Science Foundation of China (10347004) （10347004）
国家自然科学基金资助项目(10347004) （10347004）
