Calculations of spin-polarized Goos-Hanchen displacement in magnetically confined GaAs/AlxGa1-xAs nanostructure modulated by spin-orbit couplings

被引：45

作者：

Lu, Mao-Wang ^{[1
]}

Chen, Sai-Yan ^{[1
]}

Zhang, Gui-Lian ^{[1
]}

Huang, Xin-Hong ^{[1
]}

机构：

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

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2018年 / 30卷 / 14期

基金：

中国国家自然科学基金;

关键词：

semiconductor nanostructure; Goos-Hanchen effect; lateral displacement; spatial spin splitter; 2-DIMENSIONAL ELECTRON-GAS; BARRIER NANOSTRUCTURE; BEAM SPLITTER; SPATIAL SPLITTER; SEMICONDUCTOR NANOSTRUCTURE; SCHOTTKY METAL; MAGNETORESISTANCE; SPINTRONICS; RASHBA; SHIFTS;

D O I：

10.1088/1361-648X/aab0b2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We theoretically investigate Goos-Hanchen (GH) displacement by modelling the spin transport in an archetypal device structure-a magnetically confined GaAs/AlxGa1-xAs nanostructure modulated by spin-orbit coupling (SOC). Both Rashba and Dresselhaus SOCs are taken into account. The degree of spin-polarized GH displacement can be tuned by Rashba or Dresselhaus SOC, i.e. interfacial confining electric field or strain engineering. Based on such a semiconductor nanostructure, a controllable spatial spin splitter can be proposed for spintronics applications.

引用

页数：6

共 38 条

[1] GIANT MAGNETORESISTANCE OF (001)FE/(001) CR MAGNETIC SUPERLATTICES [J].

BAIBICH, MN ;

BROTO, JM ;

FERT, A ;

VANDAU, FN ;

PETROFF, F ;

EITENNE, P ;

CREUZET, G ;

FRIEDERICH, A ;

CHAZELAS, J .

PHYSICAL REVIEW LETTERS, 1988, 61 (21) :2472-2475

[2] EFFECTIVE MASS FILTERING - GIANT QUANTUM AMPLIFICATION OF THE PHOTOCURRENT IN A SEMICONDUCTOR SUPERLATTICE [J].

CAPASSO, F ;

MOHAMMED, K ;

CHO, AY ;

HULL, R ;

HUTCHINSON, AL .

APPLIED PHYSICS LETTERS, 1985, 47 (04) :420-422

[3] Tunable lateral displacement and spin beam splitter for ballistic electrons in two-dimensional magnetic-electric nanostructures [J].

Chen, Xi ;

Li, Chun-Fang ;

Ban, Yue .

PHYSICAL REVIEW B, 2008, 77 (07)

[4] ENHANCED SPIN INTERACTIONS IN DIGITAL MAGNETIC HETEROSTRUCTURES [J].

CROOKER, SA ;

TULCHINSKY, DA ;

LEVY, J ;

AWSCHALOM, DD ;

GARCIA, R ;

SAMARTH, N .

PHYSICAL REVIEW LETTERS, 1995, 75 (03) :505-508

[5]

GOOS F, 1949, ANN PHYS-BERLIN, V5, P251

[6] Coherent spin manipulation without magnetic fields in strained semiconductors [J].

Kato, Y ;

Myers, RC ;

Gossard, AC ;

Awschalom, DD .

NATURE, 2004, 427 (6969) :50-53

[7] Spin polarization of electrons by nonmagnetic heterostructures: The basics of spin optics [J].

Khodas, M ;

Shekhter, A ;

Finkel'stein, AM .

PHYSICAL REVIEW LETTERS, 2004, 92 (08)

[8] Electric control of spin-dependent Goos-Hanchen shift in a magnetically modulated semiconductor nanostructure [J].

Kong, Yong-Hong ;

Fu, Xi ;

Chen, Sai-Yan ;

Li, Ai-Hua ;

Liang, Xiao-Lin .

PHYSICS LETTERS A, 2013, 377 (38) :2610-2613

[9] Bias-controllable spin beam splitter based on antiparallel double δ-magnetic-barrier nanostructure [J].

Kong, Yong-Hong ;

Fu, Xi ;

Li, Ai-Hua ;

Chen, Xiao-Lin .

SUPERLATTICES AND MICROSTRUCTURES, 2013, 55 :26-32

[10] Lateral shifts of spin electron beams in antiparallel double δ-magnetic-barrier nanostructure [J].

Kong, Yong-Hong ;

Lu, Mao-Wang ;

Chen, Sai-Yan ;

Zhang, Gui-Lian .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2012, 324 (16) :2519-2522

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