ELECTRIC-MAGNETIC FIELDS AND TEMPERATURE DEPENDENCE OF SELF-ENERGY OF THE POLARON IN A QUANTUM WELL

Eerdunchaolu; Xiao Jinglin

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ELECTRIC-MAGNETIC FIELDS AND TEMPERATURE DEPENDENCE OF SELF-ENERGY OF THE POLARON IN A QUANTUM WELL

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- ELECTRIC-MAGNETIC FIELDS AND TEMPERATURE DEPENDENCE OF SELF-ENERGY OF THE POLARON IN A QUANTUM WELL
- Chinese Journal of Luminescence Vol. 20, Issue 1, Pages: 65-70(1999)
- 作者机构：
  
  内蒙古民族师范学院物理系通辽,028043
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：11 September 1998，
  
  Published：28 February 1999
- 稿件说明：
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额尔敦朝鲁, 肖景林. 量子阱中极化子的自能与电磁场和温度的关系[J]. 发光学报, 1999,20(1): 65-70

Eerdunchaolu, Xiao Jinglin. ELECTRIC-MAGNETIC FIELDS AND TEMPERATURE DEPENDENCE OF SELF-ENERGY OF THE POLARON IN A QUANTUM WELL[J]. Chinese Journal of Luminescence, 1999,20(1): 65-70
额尔敦朝鲁, 肖景林. 量子阱中极化子的自能与电磁场和温度的关系[J]. 发光学报, 1999,20(1): 65-70 DOI：

Eerdunchaolu, Xiao Jinglin. ELECTRIC-MAGNETIC FIELDS AND TEMPERATURE DEPENDENCE OF SELF-ENERGY OF THE POLARON IN A QUANTUM WELL[J]. Chinese Journal of Luminescence, 1999,20(1): 65-70 DOI：

摘要

采用Larsen谐振子算符代数运算与变分微扰相结合的方法

研究处于电磁场中量子阱内电子-体纵光学声子耦合系统的性质的温度依赖性

得到了有限温度下系统的自能。对GaAs晶体的量子阱进行数值计算

结果表明

极化子的自能随阱宽及电场强度的增大而减小

随温度的升高而增大。当磁场强度B

51.57

时

极化子的自能随磁场强度的增大而增大

当

51.57T时

极化子的自能随磁场强度的增大而减小。当

=51.57

时

极化子的自能出现极值

相应的共振频率为ω

=2.5825ω

Abstract

In this paper

the temperature dependence of the properties of electron-bulk LO phonon interaction system in a quantum well within the electric-magnetic fields along the growth axis

was studied by means of variational wave-function and harmonic oscillator operator algebra method. The self energy of the system at a finite temperature was obtained. Numerical calculations for GaAs crystal show that the self-energy of the polaron in a quantum well decreases with increasing of well width and electric field and increases with increasing of temperature. The self-energy will increase with increasing of magnetic field for

51.57

and it decreases with increasing of magnetic fiald for

51.57

. When

=51.57

the self-energy of polaron occurs extreme value

the corresponding resonance frequency

=2.5825

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