Controllable Spin Filtering by δ-Doping for Electrons in Magnetically and Electrically Modulated Semiconductor Nanostructure

被引：0

作者：

Kong, Yong-Hong ^{[1
]}

Fu, Xi ^{[1
]}

Li, Ai-Hua ^{[1
]}

机构：

[1] Hunan Univ Sci & Engn, Coll Sci, Yongzhou 425100, Peoples R China

来源：

SPIN | 2022年 / 12卷 / 04期

关键词：

Magnetically and electrically modulated semiconductor nanostructure (MEMSN); <mml; math display="inline" overflow="scroll"><mml; mi>delta</mml; mi></mml; math>-doping; spin-orbit coupling (SOC); spin filtering; structurally-manipulable electron-spin filter; SCHOTTKY METAL; HYBRID FERROMAGNET; POLARIZATION; SPLITTER;

D O I：

10.1142/S2010324722500291

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this paper, we theoretically investigate how to control spin filtering via a delta-doping for electrons in a magnetically and electrically modulated semiconductor nanostructure (MEMSN), which can be realized by patterning a ferromagnetic (FM) stripe and a Schottky-metal (SM) stripe on top and bottom of GaAs/AlxGa1-xAs heterostructure in experiments, respectively. A considerable spin filtering effect still exists because of spin-orbit coupling (SOC), even if a delta-doping is included. Moreover, spin polarization ratio can be manipulated by delta-doping, which may lead to a structurally-controllable electron-spin filter for semiconductor spintronics.

引用

页数：7

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