Magnetic and Mössbauer characterization of (Fe0.5Cu0.5)100−Zr alloys

Alloys with composition (Fe0.5Cu0.5) 100-xZrx (x = 0,7,15) have been obtained by ball milling. For x = 0 and 7, the alloys exhibit a face centered cubic structure, whereas for x = 15 an amorphous alloy is obtained. The Curie temperature and the magnetic moment per Fe atom are reduced for Zr containing samples when compared with FCC-Fe50Cu50. Mössbauer spectroscopy indicates a decrease of the values of the isomer shift with respect to FeCu alloys, which seems to arise from an electronic transfer from Zr to Fe, leading to the decrease in the Fe magnetic moment. © 2004 Elsevier B.V. All rights reserved.