Spin polarization and temperature dependence of electron effective mass in quantum wires

被引：11

作者：

Le Van-Tan ^{[1
]}

Trieu Van Thang ^{[2
]}

Nguyen Duy Vy ^{[3
,4
]}

Huy Thien Cao ^{[2
]}

机构：

[1] Vietnam Natl Univ, Univ Sci, Fac Phys & Engn Phys, Ho Chi Minh City 748355, Vietnam

[2] Vietnam Acad Sci & Technol, Ho Chi Minh City Inst Phys, Mac Dinh Chi 1, Ho Chi Minh City 770116, Vietnam

[3] Ton Duc Thang Univ, Adv Inst Mat Sci, Appl Phys Lab, Ho Chi Minh City, Vietnam

[4] Ton Duc Thang Univ, Fac Sci Appl, Ho Chi Minh City, Vietnam

来源：

PHYSICS LETTERS A | 2019年 / 383卷 / 17期

关键词：

Electron effective mass; 2-dimensional; Quantum wire; Spin polarization; Random-phase approximation; TIGHT-BINDING ANALYSIS; ENHANCEMENT; SPECTRA; ENERGY; FIELD; WELL;

D O I：

10.1016/j.physleta.2019.04.004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The electron effective mass in GaAs quantum wires has been estimated by using a full dynamical random-phase approximation to examine its properties versus spin polarization, temperature, and carrier density. A decrease of mass with spin polarization is seen. The minority mass increases with the polarization while the majority mass decreases and this behaviour is seen for all densities. A maximal enhancement of mass at moderate temperature around 25 K is also presented. These calculations show a qualitative consistence with results in two-dimensional systems and help to control the electronic transport in quantum wires. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：2110 / 2113

页数：4

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