Tunable spin-polarized source by the δ-doping in anisomerous double δ-magnetic-barrier nanostructure

被引：16

作者：

Lu, Mao-Wang ^{[1
]}

Wang, Zhi-Yong ^{[1
]}

Cao, Xue-Li ^{[1
]}

Li, Suai ^{[1
]}

机构：

[1] Guilin Univ Technol, Coll Sci, Guilin 541004, Peoples R China

来源：

SOLID STATE COMMUNICATIONS | 2013年 / 165卷

关键词：

Magnetic nanostructure; delta-doping; Spin polarization; Spin filter; 2-DIMENSIONAL ELECTRON-GAS; TRANSPORT;

D O I：

10.1016/j.ssc.2013.04.021

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Based on anisomerous double delta-magnetic-barrier nanostructure, an electron-spin filter can be formed [M.W. Lu, Appl. Surf. Sci. 252 (2005) 1747]. To structurally manipulate the spin polarization in spin filter, we dope a tunable delta-potential into the device by using modern material growth techniques such as molecular beam epitaxy. It is shown that the degree of electron-spin polarization depends greatly on the height and/or position of the delta-doping. Thus, the device can be used as a tunable spin-polarized source by the delta-doping. (c) 2013 Elsevier Ltd. All rights reserved.

引用

页码：45 / 48

页数：4

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