Intrinsic Spin and Orbital Hall Effects in Heavy Fermion Systems

Details Intrinsic Spin and Orbital Hall Effects in Heavy Fermion Systems Intrinsic Spin and Orbital Hall Effects in Heavy Fermion Systems

2010-03-02

arxiv.org/abs/1003.0606v1

Phys. Rev. B 81, 224401 (2010)

Physics

Condensed Matter

Strongly Correlated Electrons

11 pages, 6 figures

Scientific paper

10.1103/PhysRevB.81.224401

We study the intrinsic spin Hall effect (SHE) based on the orbitally degenerate periodic Anderson model, which is an effective model for heavy fermion systems. In the very low resistivity regime, the magnitude of the intrinsic spin Hall conductivity (SHC) is estimated as $2000 \sim 3000 \hbar e^{-1} \Omega^{-1} cm^{-1}$; It is about 10 times larger than that in Pt. Its sign is negative (positive) in Ce (Yb) compound systems with $f^1$ ($f^{13}$) configuration. Interestingly, the obtained expression for the SHC depends only on the density of conduction electrons, but is independent of the strength of the c-f mixing potential and the mass-enhancement factor. The origin of the huge SHE is the spin-dependent Berry phase induced by the complex f-orbital wavefunction, which we call the "orbital Aharonov-Bohm effect".

Affiliated with

Also associated with

No associations

Rating

Intrinsic Spin and Orbital Hall Effects in Heavy Fermion Systems 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 and Orbital Hall Effects in Heavy Fermion Systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intrinsic Spin and Orbital Hall Effects in Heavy Fermion Systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-664091