Unconventional disorder effects in correlated superconductors

Maria Navarro Gastiasoro; Fabio Bernardini; Brian Møller Andersen

doi:10.1103/PhysRevLett.117.257002

Unconventional disorder effects in correlated superconductors

Maria Navarro Gastiasoro, Fabio Bernardini, Brian Møller Andersen

X-ray and Neutron Science

20 Citationer (Scopus)

Abstract

We study the effects of disorder on unconventional superconductors in the presence of correlations, and explore a novel correlated disorder paradigm dominated by strong deviations from standard Abrikosov-Gor'kov theory due to generation of local bound states and cooperative impurity behavior driven by Coulomb interactions. Specifically we explain under which circumstances magnetic disorder acts as a strong poison destroying high-Tc superconductivity at the sub-1% level, and when nonmagnetic disorder, counterintuitively, hardly affects the unconventional superconducting state while concomitantly inducing an inhomogeneous full-volume magnetic phase. Recent experimental studies of Fe-based superconductors have discovered that such unusual disorder behavior seems to be indeed present in those systems.

Originalsprog	Engelsk
Artikelnummer	257002
Tidsskrift	Physical Review Letters
Vol/bind	117
ISSN	0031-9007
DOI	https://doi.org/10.1103/PhysRevLett.117.257002
Status	Udgivet - 15 dec. 2016

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10.1103/PhysRevLett.117.257002

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Unconventional disorder effects in correlated superconductors

Abstract

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