Spin-resolved spectra of Shiba multiplets from Mn impurities in MgB_2
Superconductivity
2008-06-03 v1
Abstract
We study the effect of magnetic Mn ions on the two-band superconductor MgB_2, and compute both the total and spin resolved scanning tunneling spectrum in the vicinity of the magnetic impurity. We show that when the internal structure of the Mn ion's d-shell is taken into account, multiple Shiba states appear in the spectrum. The presence of these multiplets could alter significantly the overall interpretation of local tunneling spectra for a wide range of superconducting hosts and magnetic impurities.
Keywords
Cite
@article{arxiv.0805.0700,
title = {Spin-resolved spectra of Shiba multiplets from Mn impurities in MgB_2},
author = {Catalin Pascu Moca and Eugene Demler and Boldizsar Janko and Gergely Zarand},
journal= {arXiv preprint arXiv:0805.0700},
year = {2008}
}
Comments
11 pages, 9 figures in eps format. accepted for publication in Phys. Rev. B