Anderson Impurity in Helical Metal
Strongly Correlated Electrons
2015-05-14 v5
Abstract
We use a trial wave function to study the spin-1/2 Kondo effect of a helical metal on the surface of a three-dimensional topological insulator. While the impurity spin is quenched by conduction electrons, the spin-spin correlation of the conduction electron and impurity is strongly anisotropic in both spin and spatial spaces. As a result of strong spin-orbit coupling, the out-of-plane component of the impurity spin is found to be fully screened by the orbital angular momentum of the conduction electrons.
Cite
@article{arxiv.0910.3031,
title = {Anderson Impurity in Helical Metal},
author = {Xiao-Yong Feng and Wei-Qiang Chen and Jin-Hua Gao and Qiang-Hua Wang and Fu-Chun Zhang},
journal= {arXiv preprint arXiv:0910.3031},
year = {2015}
}
Comments
The published version