Evolution of two-gap behavior of the superconductor FeSe1-x.
The superfluid density, rho{s}, of the iron chalcogenide superconductor, FeSe1-x, was studied as a function of pressure by means of muon-spin rotation. The analysis of rho{s}(T) within the two-gap scheme reveals that the effect on both, the transition temperature T{c} and rho{s}(0), is entirely determined by the band(s) where the large superconducting gap develops, while the band(s) with the small gap become practically unaffected.
Khasanov
R
R
Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland. rustem.khasanov@psi.ch
Bendele
M
M
Amato
A
A
Conder
K
K
Keller
H
H
Klauss
H-H
HH
Luetkens
H
H
Pomjakushina
E
E