A tunable spatial spin splitter based on a spin–orbit-coupling modulated magnetic nanostructure

Liu, Xuhui; Changshi, Liu; Xiao, Bing-Fa; Lu, Yegang

doi:10.1016/j.cjph.2018.04.023

Cited by 5 publications

(1 citation statement)

References 18 publications

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“…spin filtering [5][6][7], giant magnetoresistance (GMR) [8,9] and Goos-Hänchen shift [10,11]. These important effects can be used to develop new electronic devices, such as GMR devices [12] and spatial spin splitters [13].…”

Section: Introductionmentioning

confidence: 99%

Manipulation of a temporal electron-spin splitter via a δ-potential in an embedded magnetic-electric-barrier microstructure

Liu¹,

Tang²,

Liu³

et al. 2021

Commun. Theor. Phys.

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We theoretically explore the manipulation of a temporal electron-spin splitter by a δ-potential in an embedded magnetic-electric-barrier microstructure (EMEBM), which is constructed by patterning a ferromagnetic stripe and a Schottky-metal stripe on the top and bottom of an InAs/Al x In1−x As heterostructure, respectively. Spin polarization of the dwell time remains, even though a δ-potential is inserted by atomic-layer doping. Both the magnitude and sign of the spin-polarized dwell time can be manipulated by changing the weight or position of the δ-potential. Thus, a structurally controllable temporal electron-spin splitter can be obtained for spintronics device applications.

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Section: Introductionmentioning

confidence: 99%

Manipulation of a temporal electron-spin splitter via a δ-potential in an embedded magnetic-electric-barrier microstructure

Liu¹,

Tang²,

Liu³

et al. 2021

Commun. Theor. Phys.

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An Analytical Description of the Magnetic Conductance Across an Isolated Defect Region in a 1D-Ferromagnetic Lead

Belayadi

Bourahla

Mougari

2019

SPIN

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We illustrate in this contribution the determination of the magnetic conductance across a nanocontact region defined by an isolated defect region joined between two mono-atomic leads ferromagnetically ordered. The system is described by the Heisenberg interaction. Additionally, to deal with the lack of symmetry across the contact region defined by the isolated defect, we involve the phase field matching approach. Furthermore, to compute the quantum conductance, we define the quantum scattering of the transmission and reflection probabilities within the framework of Landauer–Büttiker formalism. Based on these approaches, we present an analytical expression of the magnetic conductance. The obtained analytical results based on our adopted procedures confirm the known results adopted for perfect infinite leads (no defect). Our model calculations can be applied numerically when we deal with doping across the defect region. The adopted model could be also used numerically to deal with the impurity configurations that one might encounter in real systems.

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

Kong¹,

Fu²,

Li³

2022

SPIN

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In this paper, we theoretically investigate how to control spin filtering via a [Formula: see text]-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/AlxGa[Formula: see text]As heterostructure in experiments, respectively. A considerable spin filtering effect still exists because of spin–orbit coupling (SOC), even if a [Formula: see text]-doping is included. Moreover, spin polarization ratio can be manipulated by [Formula: see text]-doping, which may lead to a structurally-controllable electron-spin filter for semiconductor spintronics.

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A tunable spatial spin splitter based on a spin–orbit-coupling modulated magnetic nanostructure

Cited by 5 publications

References 18 publications

Manipulation of a temporal electron-spin splitter via a δ-potential in an embedded magnetic-electric-barrier microstructure

Manipulation of a temporal electron-spin splitter via a δ-potential in an embedded magnetic-electric-barrier microstructure

An Analytical Description of the Magnetic Conductance Across an Isolated Defect Region in a 1D-Ferromagnetic Lead

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

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