Quantum states and linear response in dc and electromagnetic fields for the charge current and spin polarization of electrons at the Bi/Si interface with the giant spin-orbit coupling

doi:https://doi.org/10.1134/S1063776112030156

Title: Quantum states and linear response in dc and electromagnetic fields for the charge current and spin polarization of electrons at the Bi/Si interface with the giant spin-orbit coupling

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Abstract

An expansion of the nearly free-electron model constructed by Frantzeskakis, Pons, and Grioni [1] describing quantum states at the Bi/Si(111) interface with the giant spin-orbit coupling is developed and applied for the band structure and spin polarization calculation, as well as for the linear response analysis of the charge current and induced spin caused by a dc field and by electromagnetic radiation. It is found that the large spin-orbit coupling in this system may allow resolving the spin-dependent properties even at room temperature and at a realistic collision rate. The geometry of the atomic lattice combined with spin-orbit coupling leads to an anisotropic response for both the current and spin components related to the orientation of the external field. The in-plane dc electric field produces only the in-plane components of spin in the sample, while both the in-plane and out-of-plane spin components can be excited by normally propagating electromagnetic wave with different polarizations.

Authors:

Khomitsky, D. V., E-mail: khomitsky@phys.unn.ru ^[1]

Lobachevskii State University of Nizhni Novgorod (Russian Federation)

Publication Date:: 2012-05-15

OSTI Identifier:: 22027875

Resource Type:: Journal Article

Journal Name:: Journal of Experimental and Theoretical Physics

Additional Journal Information:: Journal Volume: 114; Journal Issue: 5; Other Information: Copyright (c) 2012 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7761

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANISOTROPY; BAND THEORY; BISMUTH; CRYSTAL STRUCTURE; ELECTRIC CURRENTS; ELECTRIC FIELDS; ELECTROMAGNETIC FIELDS; ELECTROMAGNETIC RADIATION; ELECTRONIC STRUCTURE; ELECTRONS; INTERFACES; L-S COUPLING; POLARIZATION; QUANTUM STATES; SILICON; SPIN; SPIN ORIENTATION

Citation Formats


                    Khomitsky, D. V., E-mail: khomitsky@phys.unn.ru. Quantum states and linear response in dc and electromagnetic fields for the charge current and spin polarization of electrons at the Bi/Si interface with the giant spin-orbit coupling.  United States: N. p., 2012. 
        Web.  doi:10.1134/S1063776112030156.

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                    Khomitsky, D. V., E-mail: khomitsky@phys.unn.ru. Quantum states and linear response in dc and electromagnetic fields for the charge current and spin polarization of electrons at the Bi/Si interface with the giant spin-orbit coupling.  United States.  https://doi.org/10.1134/S1063776112030156

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                    Khomitsky, D. V., E-mail: khomitsky@phys.unn.ru. Tue .  
        "Quantum states and linear response in dc and electromagnetic fields for the charge current and spin polarization of electrons at the Bi/Si interface with the giant spin-orbit coupling".  United States.  https://doi.org/10.1134/S1063776112030156.

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@article{osti_22027875,

  title        = {Quantum states and linear response in dc and electromagnetic fields for the charge current and spin polarization of electrons at the Bi/Si interface with the giant spin-orbit coupling},

  author       = {Khomitsky, D. V., E-mail: khomitsky@phys.unn.ru},

  abstractNote = {An expansion of the nearly free-electron model constructed by Frantzeskakis, Pons, and Grioni [1] describing quantum states at the Bi/Si(111) interface with the giant spin-orbit coupling is developed and applied for the band structure and spin polarization calculation, as well as for the linear response analysis of the charge current and induced spin caused by a dc field and by electromagnetic radiation. It is found that the large spin-orbit coupling in this system may allow resolving the spin-dependent properties even at room temperature and at a realistic collision rate. The geometry of the atomic lattice combined with spin-orbit coupling leads to an anisotropic response for both the current and spin components related to the orientation of the external field. The in-plane dc electric field produces only the in-plane components of spin in the sample, while both the in-plane and out-of-plane spin components can be excited by normally propagating electromagnetic wave with different polarizations.},

  doi          = {10.1134/S1063776112030156},

  url          = {https://www.osti.gov/biblio/22027875},
  journal      = {Journal of Experimental and Theoretical Physics},

  issn         = {1063-7761},

  number       = 5,

  volume       = 114,

  place        = {United States},

  year         = {2012},

  month        = {5}

}

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