STUDY ON THE SPIN-SPLITTING OF THE ENERGY BAND FOR SUPERLATTICES WITH QUART-CONSTITUTENT MATERIALS

Tian Yuan; Cheng Weiyou; Peng Yuheng; Zhang Baolin

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STUDY ON THE SPIN-SPLITTING OF THE ENERGY BAND FOR SUPERLATTICES WITH QUART-CONSTITUTENT MATERIALS

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- STUDY ON THE SPIN-SPLITTING OF THE ENERGY BAND FOR SUPERLATTICES WITH QUART-CONSTITUTENT MATERIALS
- Chinese Journal of Luminescence Vol. 18, Issue 1, Pages: 90-93(1997)
- 作者机构：
  
  1. 中国科学院长春物理研究所, 长春130021
  2. 吉林大学电子工程系, 长春130023
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：17 May 1996，
  
  Published：28 February 1997
- 稿件说明：
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田园, 陈维友, 彭宇恒, 张宝林. 四种材料超晶格的价带自旋劈裂的研究[J]. 发光学报, 1997,18(1): 90-93

Tian Yuan, Cheng Weiyou, Peng Yuheng, Zhang Baolin. STUDY ON THE SPIN-SPLITTING OF THE ENERGY BAND FOR SUPERLATTICES WITH QUART-CONSTITUTENT MATERIALS[J]. Chinese Journal of Luminescence, 1997,18(1): 90-93
田园, 陈维友, 彭宇恒, 张宝林. 四种材料超晶格的价带自旋劈裂的研究[J]. 发光学报, 1997,18(1): 90-93 DOI：

Tian Yuan, Cheng Weiyou, Peng Yuheng, Zhang Baolin. STUDY ON THE SPIN-SPLITTING OF THE ENERGY BAND FOR SUPERLATTICES WITH QUART-CONSTITUTENT MATERIALS[J]. Chinese Journal of Luminescence, 1997,18(1): 90-93 DOI：

摘要

自从Esaki和Tau

[1]

发现量子阱和超晶格以来

人们已对由两种材料构成的量子阱及超晶格的能带结构进行了大量的研究.陈维友等人

[2]

已研究了三种材料构成的超晶格的能带结构.本文将利用文献

[2]

报道的计算方法

对由四种材料构成的超晶格价带自旋劈裂的变化规律进行研究.

Abstract

The valence band spin-splitting for a superlattice composed of AlAs

1-y

1-x

As and GaAs is studied in this paper. It is shown that when the superlattice unit cell is asymmetrcal about the centre of the unit cell

the band corresponding to spin-up and spin-down will spit. The spitting mainly takes place at the stronger interaction. The stronger is the interaction

the larger is the spin-splitting. When y is increased for

being fixed 0.05

the spin-splitting does not cause much variation. However

when

is increased for y being fixed 0.9

the spin-splitting produces a large rise and fall.

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