Wave vector filtering effect in a magnetically and electrically confined GaAs/AlxGa1-xAs heterostructure with a δ-doping

被引：27

作者：

Liu, Xu-Hui ^{[1
,2
]}

Liu, Chang-Shi ^{[3
]}

Xiao, Bing-Fa ^{[4
]}

Lu, Ye-Gang ^{[1
]}

机构：

[1] Hunan Univ Sci & Engn, Sch Sci, Yongzhou 425100, Peoples R China

[2] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China

[3] Hunan Univ Commerce, Sch Management, Changsha 410205, Hunan, Peoples R China

[4] Huangqiao Middle Sch Dongkou Cty Hunan Prov, Shaoyang 422300, Peoples R China

来源：

VACUUM | 2018年 / 148卷

关键词：

Hybrid magnetic-electric-barrier nanostructure; delta-doping; Wave-vector filtering; Manipulable momentum filter; SPIN SPATIAL SPLITTER; 2-DIMENSIONAL ELECTRON-GAS; SEMICONDUCTOR NANOSTRUCTURE; GIANT MAGNETORESISTANCE; BARRIER; POLARIZATION; TRANSPORT;

D O I：

10.1016/j.vacuum.2017.11.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on a wave vector filtering (WVF) effect for electrons across a hybrid magnetic-electric-barrier (MEB) nanostructure with a delta-doping, which can be experimentally realized by depositing a ferromagnetic (FM) stripe and a Schottky-metal (SM) stripe on top and bottom of a GaAs/AlxGa1-xAs heterostructure, respectively, and using molecular beam epitaxy (MBE), An apparent WVF effect still exists even if a delta-doping is embedded into this device. Moreover, its degree can be controlled by changing weight and/or position of the delta-doping. Thus, this device can serve as a structurally-tunable electron-momentum filter for nanoelectronics. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：173 / 177

页数：5

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