Ultrafast mixing of radial and spin states driven by transient magnetic field in concentric double quantum ring in presence of Dresselhaus spin-orbit interaction

2019 ◽  
Vol 107 ◽  
pp. 142-149
Author(s):  
T. Chwiej ◽  
J. Płonka
Keyword(s):  
Magnetic Field ◽  
Orbit Interaction ◽  
Double Quantum ◽  
Quantum Ring ◽  
Spin States ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
Transient Magnetic Field

Spin transport properties in a double quantum ring with Rashba spin-orbit interaction

2013 ◽  
Vol 113 (1) ◽  
pp. 014303 ◽  
Author(s):  
Azadeh S. Naeimi ◽  
Leila Eslami ◽  
Mahdi Esmaeilzadeh ◽  
Mohammad Reza Abolhassani
Keyword(s):  
Transport Properties ◽  
Spin Transport ◽  
Orbit Interaction ◽  
Double Quantum ◽  
Quantum Ring ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
Rashba Spin

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.

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