Rashba-induced spin scattering at graphene edges

Feilong Liu; Yue Liu; Jiaxi Hu; Darryl L. Smith; P. Paul Ruden

doi:10.1063/1.4820463

Rashba-induced spin scattering at graphene edges

Feilong Liu, Yue Liu, Jiaxi Hu, Darryl L. Smith, P. Paul Ruden

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

We investigate theoretically the behavior of electron spin states near graphene edges at low temperature in the presence of an external electric field. The graphene Hamiltonian is solved directly in the low energy regime including the Rashba spin-orbit interaction. Spin propagation in graphene and spin reflection at the edge are explored by calculating the probability of spin flips between the final and initial states. The spin scattering at the edge is affected by the initial location and the propagating direction of the electron with respect to the edge. Results for an example device structure including the effects of the non-uniform electrostatic field and potential near the graphene edge are presented.

Original language	English (US)
Article number	093708
Journal	Journal of Applied Physics
Volume	114
Issue number	9
DOIs	https://doi.org/10.1063/1.4820463
State	Published - Sep 7 2013

Bibliographical note

Funding Information:
This work was supported in part by the Defense Advanced Research Projects Agency under Grant FA2386-11-1-4058 and the National Science Foundation (NSF) MRSEC Program under Award No. DMR-0819885. Access to the facilities of the Minnesota Supercomputing Institute is gratefully acknowledged.

Access

10.1063/1.4820463

OpenUrl availability

Full text

Cite this

@article{80941f0ad9804650befd2b5a4dc49e83,

title = "Rashba-induced spin scattering at graphene edges",

abstract = "We investigate theoretically the behavior of electron spin states near graphene edges at low temperature in the presence of an external electric field. The graphene Hamiltonian is solved directly in the low energy regime including the Rashba spin-orbit interaction. Spin propagation in graphene and spin reflection at the edge are explored by calculating the probability of spin flips between the final and initial states. The spin scattering at the edge is affected by the initial location and the propagating direction of the electron with respect to the edge. Results for an example device structure including the effects of the non-uniform electrostatic field and potential near the graphene edge are presented.",

author = "Feilong Liu and Yue Liu and Jiaxi Hu and Smith, {Darryl L.} and {Paul Ruden}, P.",

note = "Funding Information: This work was supported in part by the Defense Advanced Research Projects Agency under Grant FA2386-11-1-4058 and the National Science Foundation (NSF) MRSEC Program under Award No. DMR-0819885. Access to the facilities of the Minnesota Supercomputing Institute is gratefully acknowledged.",

year = "2013",

month = sep,

day = "7",

doi = "10.1063/1.4820463",

language = "English (US)",

volume = "114",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics Publising LLC",

number = "9",

}

TY - JOUR

T1 - Rashba-induced spin scattering at graphene edges

AU - Liu, Feilong

AU - Liu, Yue

AU - Hu, Jiaxi

AU - Smith, Darryl L.

AU - Paul Ruden, P.

N1 - Funding Information: This work was supported in part by the Defense Advanced Research Projects Agency under Grant FA2386-11-1-4058 and the National Science Foundation (NSF) MRSEC Program under Award No. DMR-0819885. Access to the facilities of the Minnesota Supercomputing Institute is gratefully acknowledged.

PY - 2013/9/7

Y1 - 2013/9/7

N2 - We investigate theoretically the behavior of electron spin states near graphene edges at low temperature in the presence of an external electric field. The graphene Hamiltonian is solved directly in the low energy regime including the Rashba spin-orbit interaction. Spin propagation in graphene and spin reflection at the edge are explored by calculating the probability of spin flips between the final and initial states. The spin scattering at the edge is affected by the initial location and the propagating direction of the electron with respect to the edge. Results for an example device structure including the effects of the non-uniform electrostatic field and potential near the graphene edge are presented.

AB - We investigate theoretically the behavior of electron spin states near graphene edges at low temperature in the presence of an external electric field. The graphene Hamiltonian is solved directly in the low energy regime including the Rashba spin-orbit interaction. Spin propagation in graphene and spin reflection at the edge are explored by calculating the probability of spin flips between the final and initial states. The spin scattering at the edge is affected by the initial location and the propagating direction of the electron with respect to the edge. Results for an example device structure including the effects of the non-uniform electrostatic field and potential near the graphene edge are presented.

UR - http://www.scopus.com/inward/record.url?scp=84884955667&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84884955667&partnerID=8YFLogxK

U2 - 10.1063/1.4820463

DO - 10.1063/1.4820463

M3 - Article

AN - SCOPUS:84884955667

SN - 0021-8979

VL - 114

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 9

M1 - 093708

ER -

Rashba-induced spin scattering at graphene edges

Abstract

Bibliographical note

Access

OpenUrl availability

Other files and links

Fingerprint

Cite this