Quantum Spin Hall Effect in Graphene

Details Quantum Spin Hall Effect in Graphene Quantum Spin Hall Effect in Graphene

2004-11-29

arxiv.org/abs/cond-mat/0411737v2

Phys. Rev. Lett. 95, 226801 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, published version

Scientific paper

10.1103/PhysRevLett.95.226801

We study the effects of spin orbit interactions on the low energy electronic structure of a single plane of graphene. We find that in an experimentally accessible low temperature regime the symmetry allowed spin orbit potential converts graphene from an ideal two dimensional semimetallic state to a quantum spin Hall insulator. This novel electronic state of matter is gapped in the bulk and supports the quantized transport of spin and charge in gapless edge states that propagate at the sample boundaries. The edge states are non chiral, but they are insensitive to disorder because their directionality is correlated with spin. The spin and charge conductances in these edge states are calculated and the effects of temperature, chemical potential, Rashba coupling, disorder and symmetry breaking fields are discussed.

Affiliated with

Also associated with

No associations

Rating

Quantum Spin Hall Effect in Graphene does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Quantum Spin Hall Effect in Graphene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum Spin Hall Effect in Graphene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-13711