Controllable temporal spin splitter via δ-doping in parallel double δ-magnetic-barrier nanostructure

被引：14
作者：
Guo, Qing-Meng [1 ]
Chen, Sai-Yan [1 ]
Cao, Xue-Li [1 ]
Yang, Shuai-Quan [1 ]
机构：
[1] Guilin Univ Technol, Coll Sci, Guilin 541004, Peoples R China
来源：
SEMICONDUCTOR SCIENCE AND TECHNOLOGY | 2021年 / 36卷 / 05期
基金：
中国国家自然科学基金;
关键词：
magnetic nanostructure; δ -doping; dwell time; spin polarization; controllable temporal spin splitter;
D O I：
10.1088/1361-6641/abec14
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We theoretically investigate the control of spin-polarized dwell time by delta-doping in a parallel double delta-magnetic-barrier nanostructure, which can be realized experimentally by depositing two asymmetric ferromagnetic stripes at the top and bottom of an InAs/AlxIn1-xAs heterostructure, respectively. Dwell time is still spin-polarized even if a delta-doping is included inside. Both the magnitude and the sign of the spin-polarized dwell time can be manipulated by changing the weight or position of delta-doping. Therefore, this nanostructure can be employed as a structurally controllable temporal spin splitter for spintronic device applications.
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页数：5
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