Magnetic state of dilute Ir dopant atoms in antiferromagnetic and superconducting Ba(FeIr)As probed by x-ray resonant scattering

kitefleaUrban and Civil

Nov 15, 2013 (3 years and 11 months ago)

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Magnetic state of dilute
Ir

dopant

atoms
in

antiferromagnetic

and
superconducting
Ba(Fe
1−
x
Ir
x
)
2
As
2

probed by x
-
ray resonant scattering



Superconductivity is induced in
antiferromagnetic

BaFe
2
As
2

by chemical
substitution.



The manner with which
dopant

atoms
disrupt magnetism and promote
superconductivity is currently debated.



Resonant magnetic scattering
measurements performed at the
Ir

L
3
edge at the Advanced Photon Source
demonstrate that
Ir

atoms are
magnetically polarized.



Magnetism coexists with
superconductivity in these samples.

magnetism survives in the vicinity of
Ir

dopant

atoms


Findings reveal the interplay between magnetism and superconductivity in doped systems