Modulations of the local pairing interaction near magnetic impurities in d-wave superconductors

TY - JOUR

T1 - Modulations of the local pairing interaction near magnetic impurities in d-wave superconductors

AU - Rømer, Astrid Tranum

AU - Graser, S.

AU - Hirschfeld, P.J.

AU - Andersen, Brian Møller

PY - 2013/5/1

Y1 - 2013/5/1

N2 - The spin-fluctuation based pairing mechanism has proven successful in explaining the pairing symmetries due to Fermi surface nesting of both cuprates and ironbased materials. In this work, we study signatures of a spinfluctuation mediated pairing at the local scale. Specifically, we focus on magnetic impurities and calculate both the local antiferromagnetism and the resulting modulated pairing interaction. The latter gives rise to distinct local enhancements of the superconducting gap in the immediate vicinity of the impurities. Our results show that Coulomb-driven pairing naturally leads to unusual superconducting gap modulations near disorder potentials.

AB - The spin-fluctuation based pairing mechanism has proven successful in explaining the pairing symmetries due to Fermi surface nesting of both cuprates and ironbased materials. In this work, we study signatures of a spinfluctuation mediated pairing at the local scale. Specifically, we focus on magnetic impurities and calculate both the local antiferromagnetism and the resulting modulated pairing interaction. The latter gives rise to distinct local enhancements of the superconducting gap in the immediate vicinity of the impurities. Our results show that Coulomb-driven pairing naturally leads to unusual superconducting gap modulations near disorder potentials.

U2 - 10.1007/s10948-012-2058-3

DO - 10.1007/s10948-012-2058-3

M3 - Journal article

SN - 1557-1939

VL - 26

SP - 1729

EP - 1732

JO - Journal of Superconductivity and Novel Magnetism

JF - Journal of Superconductivity and Novel Magnetism

ER -