Spin-orbit scattering and time-reversal symmetry: Detection of a spin by tunneling [7]

Journal Article

We consider the possibility of detecting spin precession in a magnetic field by nonequilibrium transport processes. We find that time-reversal symmetry imposes strong constraints on the problem. Suppose the tunneling occurs directly between systems at two different chemical potentials rather than sequentially via a third system at an intermediate chemical potential. Then, at largest order in voltage, unless spin-polarized electrons are used, the periodic signal in the current results from beating together two different precession frequencies, so that observing a signal near the Larmor frequency in this case requires having some cluster with a g factor close to zero.

Full Text

Cited Authors

  • Hastings, MB

Published Date

  • 2004

Published In

Volume / Issue

  • 70 / 16

Start / End Page

  • 1 - 4

International Standard Serial Number (ISSN)

  • 0163-1829

Digital Object Identifier (DOI)

  • 10.1103/PhysRevB.70.161301