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
收藏
页码：173 / 177
页数：5
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