We performed a comparative study of magnetic proximity effects in [Gd(5nm)/Nb(25nm)]12 and [Cu30Ni70(6nm)/Nb(27nm)]12 superlattices of S/F type by means of transport measurements and neutron scattering. Transport measurements have shown that Gd/Nb and CuNi/Nb superlattices shows 3D and 2D type of superconductivity respectively. In the case of proximity coupled Gd/Nb superconductor the effective thickness of the superconducting region, 300nm is enough to expel significant amount of applied magnetic field which was detected by neutron scattering. In decoupled CuNi/Nb superlattice thickness of every superconducting layer is only 27nm which is not enough to expel applied magnetic field. Our study shows how neutron reflectometry can be applied to study proximity coupling in superconducting/ferromagnet heterostructures.
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - Nov 28 2019|
|Event||7th Euro-Asian Symposium on Trends in Magnetism, EASTMAG 2019 - Ekaterinburg, Russian Federation|
Duration: Sep 8 2019 → Sep 13 2019
ASJC Scopus subject areas
- Physics and Astronomy(all)