Manipulating spin spatial splitter in a δ-doped semiconductor nanostructure with zero average magnetic field

被引：21

作者：

Liu, Gui-Xiang ^{[1
]}

Ma, Wen-Yue ^{[1
]}

Shen, Li-Hua ^{[1
]}

机构：

[1] Shaoyang Univ, Dept Sci, Shaoyang 422004, Hunan, Peoples R China

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2015年 / 88卷

基金：

中国国家自然科学基金;

关键词：

Magnetic nanostructure; The delta-doping; Lateral displacement; Controllable spin spatial splitter; BARRIER NANOSTRUCTURE; BEAM SPLITTER; SHIFTS; STATES;

D O I：

10.1016/j.spmi.2015.09.011

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Recently, based on a novel magnetic nanostructure with zero average magnetic field, a spin spatial splitter with a considerable spin-polarized lateral displacement was proposed [Appl. Surf. Sci. 313 (2014) 545]. To further manipulate its spin-polarized behaviour, in this work, we introduce a tunable delta-potential into the device by the atomic layer doping, and calculated its effect on spin-polarized lateral displacement of the electron. Both magnitude and sign of spin polarization are found to be sensitive to the delta-doping. Therefore, such a device can serve as a structurally-controllable spin-polarized source for spintronics applications. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：204 / 210

页数：7

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