Intrinsic spin Hall effect in platinum metal

Details Intrinsic spin Hall effect in platinum metal Intrinsic spin Hall effect in platinum metal

2007-05-03

arxiv.org/abs/0705.0409v4

Phys. Rev. Lett. 100, 096401 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Accepted for publication in Phys. Rev. Lett

Scientific paper

Spin Hall effect in metallic Pt is studied with first-principles relativistic band calculations. It is found that intrinsic spin Hall conductivity (SHC) is as large as $\sim 2000 (\hbar/e)(\Omega {\rm cm})^{-1}$ at low temperature, and decreases down to $\sim 200 (\hbar/e)(\Omega {\rm cm})^{-1}$ at room temperature. It is due to the resonant contribution from the spin-orbit splitting of the doubly degenerated $d$-bands at high-symmetry $L$ and $X$ points near the Fermi level. By modeling these near degeneracies by effective Hamiltonian, we show that SHC has a peak near the Fermi energy and that the vertex correction due to impurity scattering vanishes. We therefore argue that the large spin Hall effect observed experimentally in platinum is of intrinsic nature.

Affiliated with

Also associated with

No associations

Rating

Intrinsic spin Hall effect in platinum metal 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 Intrinsic spin Hall effect in platinum metal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intrinsic spin Hall effect in platinum metal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-496849