Spin-polarized tunneling microscopy and the Kondo effect
Strongly Correlated Electrons
2007-11-29 v1
Abstract
We present a theory for spin-polarized scanning tunneling microscopy (SP-STM) of a Kondo impurity on an unpolarized metallic substrate. The spin polarization of the SP-STM breaks the spin symmetry of the Kondo system, similar to an applied magnetic field, leading to a splitting of the Abrikosov-Suhl-Kondo resonance. The amount of splitting is controlled by the strength of the coupling between the impurity and the SP-STM tip and also the overall spin polarization of the SP-STM.
Cite
@article{arxiv.cond-mat/0703813,
title = {Spin-polarized tunneling microscopy and the Kondo effect},
author = {Kelly R. Patton and Stefan Kettemann and Andrey Zhuravlev and Alexander Lichtenstein},
journal= {arXiv preprint arXiv:cond-mat/0703813},
year = {2007}
}
Comments
4 pages, 4 figures