Can I read Unexpected Impact of Magnetic Disorder on Multiband Superconductivity on EtoBox?

Unexpected Impact of Magnetic Disorder on Multiband Superconductivity by Korshunov, M. M.; Efremov, D. V.; Golubov, A. A.; Dolgov, O. V. is a scholarly article available to read on EtoBox.

What is Unexpected Impact of Magnetic Disorder on Multiband Superconductivity about?

We analyze how the magnetic disorder affects the properties of the two-band $s_\pm$ and $s_{++}$ models, which are subject of hot discussions regarding iron-based superconductors and other multiband systems like MgB$_2$. We show that there are several cases when the transition temperature $T_c$ is not fully suppressed by magnetic impurities in contrast to the Abrikosov-Gor'kov theory, but a saturation of $T_c$ takes place in the regime of strong disorder. These cases are: (1) the purely interband impurity scattering, (2) the unitary scattering limit. We show that in the former case the $s_\pm$ gap is preserved, while the $s_{++}$ state transforms into the $s_\pm$ state with increasing magnetic disorder. For the case (2), the gap structure remains intact.

Author

Korshunov, M. M.; Efremov, D. V.; Golubov, A. A.; Dolgov, O. V.

Published

2014

Language

EN