TY - JOUR
T1 - Spin transport in graphene spin-orbit barrier structure
AU - Zhang, Qingtian
AU - Chan, K. S.
AU - Lin, Zijing
AU - Liu, Jun-Feng
PY - 2013/3/1
Y1 - 2013/3/1
N2 - We studied spin-dependent transport in monolayer graphene with a spin-orbit barrier, a narrow strip in which the spin-orbit interaction is not zero. When the Fermi energy is between the two spin-split bands, the structure can be used to generate spin-polarized current. For a strong enough Rashba strength, a thick enough barrier or a low enough Fermi energy, highly spin-polarized current is generated (polarization ∼0.7-0.85). Under these conditions, the spin direction of the transmitted electron is approximately perpendicular to the direction of motion. This shows that graphene spin-orbit nanostructures are useful for the development of graphene spintronic devices. © 2013 Elsevier B.V. All rights reserved.
AB - We studied spin-dependent transport in monolayer graphene with a spin-orbit barrier, a narrow strip in which the spin-orbit interaction is not zero. When the Fermi energy is between the two spin-split bands, the structure can be used to generate spin-polarized current. For a strong enough Rashba strength, a thick enough barrier or a low enough Fermi energy, highly spin-polarized current is generated (polarization ∼0.7-0.85). Under these conditions, the spin direction of the transmitted electron is approximately perpendicular to the direction of motion. This shows that graphene spin-orbit nanostructures are useful for the development of graphene spintronic devices. © 2013 Elsevier B.V. All rights reserved.
KW - Graphene
KW - Quantum transport
KW - Spin polarization
KW - Spin-orbit interaction
KW - Spintronic
UR - http://www.scopus.com/inward/record.url?scp=84872767136&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84872767136&origin=recordpage
U2 - 10.1016/j.physleta.2012.12.032
DO - 10.1016/j.physleta.2012.12.032
M3 - RGC 21 - Publication in refereed journal
SN - 0375-9601
VL - 377
SP - 632
EP - 636
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 8
ER -