We report on the effects of 3.5 MeV proton irradiation on single crystals of the magnetic superconductor EuFe2(As1- x Px)2, investigated at microwave frequencies by a coplanar waveguide resonator technique. We studied the relative strength of the two collective phenomena by analyzing the dependence of their onset temperatures on different perturbations: magnetic fields and structural disorder. Results suggest that superconductivity and magnetism in this material are two competing orders: as the former is suppressed by irradiation or by excess P doping, the latter reinforces and manifests itself at higher temperatures. The ability to modulate superconductivity and magnetism in EuFe2(As1-xPx)2 by disorder and in-plane magnetic field, respectively, offers the chance to tailor, even on a local scale, their relative weights. This could be useful for the aim of engineering this material for specific applications.
Effects of proton irradiation on the magnetic superconductor EuFe2(As1-xPx)2 / Ghigo, Gianluca; Torsello, Daniele; Gerbaldo, Roberto; Gozzelino, Laura; Pyon, Sunseng; S Veshchunov, I; Tamegai, Tsuyoshi; Cao, Guanghan. - In: SUPERCONDUCTOR SCIENCE & TECHNOLOGY. - ISSN 0953-2048. - 33(2020), p. 094011. [10.1088/1361-6668/aba355]
|Titolo:||Effects of proton irradiation on the magnetic superconductor EuFe2(As1-xPx)2|
|Data di pubblicazione:||2020|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1088/1361-6668/aba355|
|Appare nelle tipologie:||1.1 Articolo in rivista|