Singular Effects of Spin-Flip Scattering on Gapped Dirac Fermions

Details Singular Effects of Spin-Flip Scattering on Gapped Dirac Fermions Singular Effects of Spin-Flip Scattering on Gapped Dirac Fermions

2010-11-17

arxiv.org/abs/1011.4083v3

EPL, 95 (2011) 67001

Physics

Condensed Matter

Materials Science

Scientific paper

We investigate the effects of spin-flip scattering on the Hall transport and spectral properties of gapped Dirac fermions. We find that in the weak scattering regime, the Berry curvature distribution is dramatically compressed in the electronic energy spectrum, becoming singular at band edges. As a result the Hall conductivity has a sudden jump (or drop) of $e^2/2h$ when the Fermi energy sweeps across the band edges, and otherwise is a constant quantized in units of $e^2/2h$. In parallel, spectral properties such as the density of states and spin polarization are also greatly enhanced at band edges. Possible experimental methods to detect these effects are discussed.

Affiliated with

Also associated with

No associations

Rating

Singular Effects of Spin-Flip Scattering on Gapped Dirac Fermions 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 Singular Effects of Spin-Flip Scattering on Gapped Dirac Fermions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Singular Effects of Spin-Flip Scattering on Gapped Dirac Fermions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-535893