Ranchal Sánchez, RocíoChoi, Y.Romera Rabasa, Miguel ÁlvaroFreeland, J. W.Prieto, J. L.Haskel, D.2024-01-292024-01-292012-01-05Ranchal, R., et al. «Influence of the Fe Content on the Gd Magnetic Ordering Temperature in Ni 1 − x Fe x /Gd Multilayers». Physical Review B, vol. 85, n.o 2, enero de 2012, p. 024403. DOI.org (Crossref), https://doi.org/10.1103/PhysRevB.85.024403.1098-01211550-235X10.1103/physrevb.85.024403https://hdl.handle.net/20.500.14352/95819We explore the influence of Fe content on the interfacial magnetic properties of Ni1-xFex(50 angstrom)/Fe (t angstrom)/Gd(50 angstrom)/Fe (t angstrom)/Ni1-x Fe-x(50 degrees) (x = 0.2 and 0.6, and t = 0 and 10 angstrom) multilayers by means of element-specific x-ray magnetic circular dichroism measurements at Gd M-5 and (Ni, Fe) L-2,L-3 absorption edges, superconducting quantum interference device magnetometry, and specular reflectivity measurements. Increasing Fe content in the Ni-Fe layer enhances the Gd ordering temperature in the interfacial regions. Addition of a 1-nm Fe spacer results in the largest enhancement in Gd ordering temperature in both interior and interfacial Gd regions, even for high Ni content in the Ni-Fe layer. This indicates that the Fe spacers act as effective barriers (albeit imperfect) in reducing Gd-Ni contact interactions responsible for limiting the interfacial Gd magnetic ordering temperature to values larger than bulk Gd, but significantly lower than observed at Fe/Gd interfaces.engjournal articlehttps://doi.org/10.1103/physrevb.85.024403restricted access538.9Física del estado sólido2211.17 Propiedades Magnéticas