Effect of Magnetic Impurity Correlations on Josephson Tunneling
Superconductivity
2015-06-25 v1
Abstract
The ordering trend of magnetic impurities at low temperature results in the frustration of the pair-breaking effect and induces a ``recovery'' of superconducting properties. We show that this effect manifests itself in the deviation of the Josephson current amplitude from the values obtained within the Ambegaokar-Baratoff and the Abrikosov-Gor'kov models. We consider both weak and strong-coupling cases. The theory is applied to describe the experimental data obtained for the low- superconductor SmRhB. We further predict a ``recovery'' effect of the Josephson current in high-temperature superconductors.
Keywords
Cite
@article{arxiv.cond-mat/9801189,
title = {Effect of Magnetic Impurity Correlations on Josephson Tunneling},
author = {A. Bill and S. A. Wolf and Yu. N. Ovchinnikov and V. Z. Kresin},
journal= {arXiv preprint arXiv:cond-mat/9801189},
year = {2015}
}
Comments
7 pages, 4 figures. Accepted for publication in Physica C