Rashba spin-orbit coupling effects in armchair graphene nanoribbons

2015 ◽  
Author(s):  
S. Prabhakar ◽  
R. Melnik ◽  
A. Sebetci
Keyword(s):  
Graphene Nanoribbons ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Coupling Effects ◽  
Rashba Spin ◽  
Armchair Graphene Nanoribbons ◽  
Armchair Graphene

Spin–orbit coupling prevents spin channel suppression of transition metal atoms on armchair graphene nanoribbons

2018 ◽  
Vol 20 (47) ◽  
pp. 29826-29832 ◽  
Author(s):  
W. Y. Rojas ◽  
Cesar E. P. Villegas ◽  
A. R. Rocha
Keyword(s):  
Density Functional ◽  
Graphene Nanoribbons ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Functional Theory ◽  
Transition Metal Atoms ◽  
Spin Polarized ◽  
Armchair Graphene Nanoribbons ◽  
Armchair Graphene

We investigate the spin-dependent electronic and transport properties of armchair graphene nanoribbons including spin–orbit coupling due to the presence of nickel and iridium adatoms by using ab initio calculations within the spin-polarized density functional theory and non-equilibrium Green's function formalism.

scholarly journals Intrinsic Spin-Orbit Coupling in Zigzag and Armchair Graphene Nanoribbons

2011 ◽  
Vol 2011 ◽  
pp. 1-7
Author(s):  
Ying Li ◽  
Erhu Zhang ◽  
Baihua Gong ◽  
Shengli Zhang
Keyword(s):  
Graphene Nanoribbons ◽  
Tight Binding ◽  
Geometrical Parameters ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Binding Model ◽  
Tight Binding Approximation ◽  
Energy Gaps ◽  
Armchair Graphene Nanoribbons ◽  
Armchair Graphene

Starting from a tight-binding model, we derive the energy gaps induced by intrinsic spin-orbit (ISO) coupling in the low-energy band structures of graphene nanoribbons. The armchair graphene nanoribbons may be either semiconducting or metallic, depending on their widths in the absence of ISO interactions. For the metallic ones, the gaps induced by ISO coupling decrease with increasing ribbon widths. For the ISO interactions, we find that zigzag graphene nanoribbons with odd chains still have no band gaps while those with even chains have gaps with a monotonic decreasing dependence on the widths. First-principles calculations have also been carried out, verifying the results of the tight-binding approximation. Our paper reveals that the ISO interaction of graphene nanoribbons is governed by their geometrical parameters.

Rashba spin-orbit coupling effects inCd1−xMnxTequantum dots

2006 ◽  
Vol 73 (24) ◽  
Author(s):  
F. M. Hashimzade ◽  
A. M. Babayev ◽  
B. H. Mehdiyev
Keyword(s):  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Coupling Effects ◽  
Rashba Spin
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