scholarly journals Imaging mesoscopic spin Hall flow: Spatial distribution of local spin currents and spin densities in and out of multiterminal spin-orbit coupled semiconductor nanostructures

2006 ◽  
Vol 73 (7) ◽  
Author(s):  
Branislav K. Nikolić ◽  
Liviu P. Zârbo ◽  
Satofumi Souma
Keyword(s):  
Spatial Distribution ◽  
Semiconductor Nanostructures ◽  
Spin Orbit ◽  
Local Spin ◽  
Spin Currents ◽  
Spin Densities ◽  
Coupled Semiconductor

Spin currents in semiconductor nanostructures: A non-equilibrium Green-function approach

2017 ◽  
Author(s):  
Branislav K. Nikolic ◽  
Liviu P. Zarbo ◽  
Satofumi Souma
Keyword(s):  
Green Function ◽  
Spin Current ◽  
Semiconductor Nanostructures ◽  
Pure Spin ◽  
Current Operator ◽  
Spin Orbit ◽  
Spin Currents ◽  
Low Dimensional ◽  
Green Function Approach ◽  
Non Equilibrium

This article examines spin currents and spin densities in realistic open semiconductor nanostructures using different tools of quantum-transport theory based on the non-equilibrium Green function (NEGF) approach. It begins with an introduction to the essential theoretical formalism and practical computational techniques before explaining what pure spin current is and how pure spin currents can be generated and detected. It then considers the spin-Hall effect (SHE), and especially the mesoscopic SHE, along with spin-orbit couplings in low-dimensional semiconductors. It also describes spin-current operator, spindensity, and spin accumulation in the presence of intrinsic spin-orbit couplings, as well as the NEGF approach to spin transport in multiterminal spin-orbit-coupled nanostructures. The article concludes by reviewing formal developments with examples drawn from the field of the mesoscopic SHE in low-dimensional spin-orbit-coupled semiconductor nanostructures.

scholarly journals STEADY-STATE SPIN DENSITIES AND CURRENTS

2008 ◽  
Vol 22 (27) ◽  
pp. 4765-4791 ◽  
Author(s):  
DIMITRIE CULCER
Keyword(s):  
Steady State ◽  
Spin Dynamics ◽  
State Density ◽  
Spin Precession ◽  
Spin Orbit ◽  
Spin Currents ◽  
State Spin ◽  
Spin Orbit Interactions ◽  
Precessing Spin ◽  
Spin Densities

This article reviews steady-state spin densities and spin currents in materials with strong spin-orbit interactions. These phenomena are intimately related to spin precession due to spin-orbit coupling, which has no equivalent in the steady state of charge distributions. The focus will initially be on effects originating from the band structure. In this case, spin densities arise in an electric field because a component of each spin is conserved during precession. Spin currents arise because a component of each spin is continually precessing. These two phenomena are due to independent contributions to the steady-state density matrix, and scattering between the conserved and precessing spin distributions has important consequences for spin dynamics and spin-related effects in general. In the latter part of the article, extrinsic effects such as skew scattering and side jump will be discussed, and it will be shown that these effects are also modified considerably by spin precession. Theoretical and experimental progress in all areas will be reviewed.

scholarly journals Generation and Detection of Spin Currents in Semiconductor Nanostructures with Strong Spin-Orbit Interaction

2015 ◽  
Vol 114 (20) ◽  
Author(s):  
Fabrizio Nichele ◽  
Szymon Hennel ◽  
Patrick Pietsch ◽  
Werner Wegscheider ◽  
Peter Stano ◽  
...  
Keyword(s):  
Semiconductor Nanostructures ◽  
Orbit Interaction ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
Spin Currents ◽  
Strong Spin

Spin-orbit induced equilibrium spin currents in materials

2022 ◽  
Vol 105 (2) ◽  
Author(s):  
Andrea Droghetti ◽  
Ivan Rungger ◽  
Angel Rubio ◽  
Ilya V. Tokatly
Keyword(s):  
Spin Orbit ◽  
Spin Currents

scholarly journals Spin currents and spin–orbit torques in ferromagnetic trilayers

2018 ◽  
Vol 17 (6) ◽  
pp. 509-513 ◽  
Author(s):  
Seung-heon C. Baek ◽  
Vivek P. Amin ◽  
Young-Wan Oh ◽  
Gyungchoon Go ◽  
Seung-Jae Lee ◽  
...  
Keyword(s):  
Spin Orbit ◽  
Spin Currents
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