有限深抛物量子阱中的类氢杂质态(英文)  

Hydrogenic Impurity in Finite Papabolic Quantum Well

作　　者：王志平[1] 梁希侠[1] 王旭[1] 

机构地区：[1]内蒙古大学物理学系,呼和浩特010021

出　　处：《内蒙古大学学报（自然科学版）》2006年第3期262-266,共5页Journal of Inner Mongolia University：Natural Science Edition

基　　金：内蒙古自然科学基金项目(200408020101);内蒙古大学青年科学基金项目(ND0405)~~

摘　　要：运用三参数变分法,研究了在垂直于生长方向的磁场作用下抛物量子阱中类氢杂质态的束缚能和1s→2p-态跃迁能.结果表明,束缚能和跃迁能随阱宽变化有一极大值;束缚能随磁场单调增加,而跃迁能随磁场的变化出现了极小值.A variational calculation of the binding energies and the transition energies from the ground state to the first excited state （1s→2p_） for a hydrogenic impurity at the bottom of a finite parabolic quantum well with a magnetic field normal to the well plane is presented. A trial wave function with three variational parameters is used for the calculation. The results show that the binding energies and the 1s→2p_ transition energies have their maxima with increasing well width. The binding energies increase monotonously and the 1s→2p_ transition energies have the minimum values with increasing magnetic field.

关 键 词：杂质态 量子阱 磁场 

分 类 号：O471.3[理学—半导体物理]