Martínez, ARomero, J.J.Bartolome, F.Garcia, L.M.Baudelet, F.Hernando Grande, AntonioCrespo del Arco, Patricia2023-06-202023-06-202012-07-020003-695110.1063/1.4735300https://hdl.handle.net/20.500.14352/42605©2012 American Institute of Physics. This work was supported by Spanish MICINN under MAT2009-14741-C02-01, MAT11/1077, Consolider-Ingenio in Molecular Nanoscience, CSD2007-00010The room temperature changes of the magnetic behavior under pressure of an invar alloy of nominal composition [Fe_(0.5)Cu_(0.5)]_(87)Zr_(13) (at. %) has been studied by K-edge x-ray magnetic circular dichroism (XMCD) and x-ray absorption near edge spectroscopy (XANES). The Curie temperature, as determined from low field magnetization measurements, is (255 ± 15) K. However XMCD shows a non negligible signal above this temperature. In addition, the XMCD signal decreases upon increasing pressure indicating a pressure-induced collapse of the magnetic moment. These results evidence the itinerant character of FeCuZr alloys as well as the occurrence of magnetovolume effects characterized by a strong dependence of the 3d band on the Fe-Fe nearest neighbor distances.engjournal articlehttp://dx.doi.org/10.1063/1.4735300http://aip.scitation.orgopen access538.9Amorphous-alloysTemperatureInvarIronDependenceBehaviorFísica de materiales