Gate tunable spin transport in graphene with Rashba spin-orbit coupling

2016 ◽  
Vol 98 ◽  
pp. 473-491
Author(s):  
Xiao-Dong Tan ◽  
Xiao-Ping Liao ◽  
Litao Sun
Keyword(s):  
Spin Transport ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Rashba Spin

scholarly journals Spin transport study in a Rashba spin-orbit coupling system

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Fuhong Mei ◽  
Shan Zhang ◽  
Ning Tang ◽  
Junxi Duan ◽  
Fujun Xu ◽  
...  
Keyword(s):  
Spin Transport ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Transport Study ◽  
Rashba Spin ◽  
Coupling System

Effects of Rashba spin–orbit coupling on the conductance of graphene-based nanoribbons

2017 ◽  
Vol 31 (06) ◽  
pp. 1750043 ◽  
Author(s):  
Zeinab Rashidian ◽  
Parvin Bayati ◽  
Zeinab Lorestaniwiess
Keyword(s):  
Quantum Transport ◽  
Spin Transport ◽  
Orbit Coupling ◽  
Monolayer Graphene ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Zigzag Edge ◽  
Transmission Properties ◽  
Rashba Spin ◽  
Different Types

The transmission properties of armchair- and zigzag-edged graphene nanoribbon junctions between graphene electrodes are examined by means of the standard nonequilibrium Green’s function (NEGF) technique. The quantum transport of electrons is studied through a monolayer graphene strip in the presence of Rashba spin–orbit coupling that acts as a barrier between the two normal leads. The present work compares the conductances of nanoribbons with zigzag and armchair edges. Since the nature of induced gap for zigzag edge is different from armchair, it is expected to give rise to different types of conductance for each edge. Findings indicate that the Rashba strength has more pronounced influence on armchair ribbons than on zigzag ribbons, and the minimum conductance of [Formula: see text] for nanoribbon remains intact even in the presence of the Rashba spin–orbit coupling. It is predicted that controllability of spin transport in the monolayer graphene may contribute to the development of well-known spintronics.

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