Transition in Magnetic Non-collinear Spin-flop State in Fe/Pd/Gd/Pd Superlattice
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In this work a study of influence of Pd spacer on magnetic properties of Gd/Fe heterostructures was performed. We have prepared using ultrahigh vacuum sputtering multilayered [Fe(3.5 nm)/Pd(1.2 nm)/Gd(5.0 nm)/Pd(1.2 nm)]12 structure. By using of Polarized Neutron Reflectometry at temperature of 10K we have observed strong increase of intensity of neutron spin-flip scattering above magnetic field of 1.5 kOe. Combined analysis of magnetometry and polarized neutron reflectometry data allowed us to find out that the observed increase of spin-flip scattering is related to the spin-flop transition. Although the spin-flop transition were already seen in Fe/Gd systems, using of Pd in our case allowed to suppress magnetic field of the transition making thus possible using of Fe/Pd/Gd systems for diverse spintronic applications
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