Electrical generation of pure spin current with oscillating spin-orbit interaction

2009 ◽  
Vol 69 (3) ◽  
pp. 337-341 ◽  
Author(s):  
F. Liang ◽  
Y. H. Yang ◽  
J. Wang
Keyword(s):  
Spin Current ◽  
Orbit Interaction ◽  
Pure Spin ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
Electrical Generation

scholarly journals Nonadiabatic generation of a pure spin current in a one-dimensional quantum ring with spin-orbit interaction

2011 ◽  
Vol 83 (15) ◽  
Author(s):  
Marian Niţă ◽  
D. C. Marinescu ◽  
Andrei Manolescu ◽  
Vidar Gudmundsson
Keyword(s):  
Spin Current ◽  
Orbit Interaction ◽  
Quantum Ring ◽  
Pure Spin ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
One Dimensional

Spin generation and manipulation based on spin-orbit interaction in semiconductors

2017 ◽  
Author(s):  
J. Nitta
Keyword(s):  
Magnetic Field ◽  
Orbit Interaction ◽  
Degree Of Freedom ◽  
Effective Magnetic Field ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
Spin Degree ◽  
Dimensional Electron Gas ◽  
Spin Orbit Interactions ◽  
Electrical Generation

This chapter focuses on the electron spin degree of freedom in semiconductor spintronics. In particular, the electrostatic control of the spin degree of freedom is an advantageous technology over metal-based spintronics. Spin–orbit interaction (SOI), which gives rise to an effective magnetic field. The essence of SOI is that the moving electrons in an electric field feel an effective magnetic field even without any external magnetic field. Rashba spin–orbit interaction is important since the strength is controlled by the gate voltage on top of the semiconductor’s two-dimensional electron gas. By utilizing the effective magnetic field induced by the SOI, spin generation and manipulation are possible by electrostatic ways. The origin of spin-orbit interactions in semiconductors and the electrical generation and manipulation of spins by electrical means are discussed. Long spin coherence is achieved by special spin helix state where both strengths of Rashba and Dresselhaus SOI are equal.

Microscopic theory of diffusive spin current with spin-orbit interaction

2011 ◽  
Vol 83 (14) ◽  
Author(s):  
Kazuhiro Hosono ◽  
Akinobu Yamaguchi ◽  
Yukio Nozaki ◽  
Gen Tatara
Keyword(s):  
Spin Current ◽  
Microscopic Theory ◽  
Orbit Interaction ◽  
Spin Orbit ◽  
Spin Orbit Interaction

scholarly journals Separated spin evolution quantum hydrodynamics of degenerate electrons with spin–orbit interaction and extraordinary wave spectrum

2018 ◽  
Vol 84 (5) ◽  
Author(s):  
Pavel A. Andreev ◽  
Mariya Iv. Trukhanova
Keyword(s):  
Wave Spectrum ◽  
Spin Current ◽  
Extraordinary Wave ◽  
Orbit Interaction ◽  
Spin Orbit ◽  
Quantum Hydrodynamics ◽  
Pauli Equation ◽  
Spin Orbit Interaction ◽  
Spin Evolution ◽  
Electron Acoustic Wave

To consider the contribution of the spin–orbit interaction in the extraordinary wave spectrum we derive a generalization of the separate spin evolution quantum hydrodynamics. Applying the corresponding nonlinear Pauli equation we include the Fermi spin current contribution in the spin evolution. We find that the spectrum of extraordinary waves consists of three branches: two of them are well-known extraordinary waves and the third one is the spin-electron acoustic wave. A change of the extraordinary wave spectrum due to the spin–orbit interaction is also obtained.

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