Traverse electric field effect on wave vector filtering in a magnetically modulated semiconductor nanostructure

被引：6
|
作者：
Tang, Ge [1 ]
Liu, Gui-Xiang [1 ]
Ma, Wen-Yue [1 ]
机构：
[1] Shaoyang Univ, Dept Sci, Shaoyang 422004, Hunan, Peoples R China
来源：
MODERN PHYSICS LETTERS B | 2019年 / 33卷 / 34期
关键词：
Magnetically modulated semiconductor nanostructure; traverse electric field; wave vector filtering effect; controllable momentum filtering device; SPIN SPATIAL SPLITTER; GAS; MAGNETORESISTANCE; TRANSPORT;
D O I：
10.1142/S0217984919504219
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We theoretically study the effect of traverse electric field on wave vector filtering (WVF) in a magnetically modulated nanostructure, which can be constructed by patterning ferromagnetic (FM) stripes on top and bottom of GaAs/AlxGa1-xAs heterostructure. Using the transfer matrix method, electric field-dependent transmission is calculated by using Weber function for electrons across the structure. We find that WVF efficiency is manipulable by adjusting direction or strength of electric field. Thus, an electrically-tunable momentum filtering device can be obtained.
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页数：9
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