Kondo effect of cobalt adatom on zigzag graphene nanoribbon
Mesoscale and Nanoscale Physics
2015-06-16 v1
Abstract
Based on ab-initio calculations we discuss Kondo effect due to Co adatom on graphene zigzag nanoribbon. Co atom located at hollow site behaves as spin S = 1/2 impurity with dxz and dyz orbitals contributing to magnetic moment. Dynamical correlations are analyzed with the use of complementary approximations: mean field slave boson approach, noncrossing approximation and equation of motion method. The impact of interplay between spin and orbital degrees of freedom together with the effect of peculiarities of electronic and magnetic structure of nanoribbon on many-body resonances is examined.
Keywords
Cite
@article{arxiv.1307.5872,
title = {Kondo effect of cobalt adatom on zigzag graphene nanoribbon},
author = {Damian Krychowski and Jakub Kaczkowski and Stanislaw Lipinski},
journal= {arXiv preprint arXiv:1307.5872},
year = {2015}
}
Comments
48 pages, 22 figures