Magnetic properties of nanocrystalline Fecu(x)Cu(1-x) alloys prepared by ball milling

Yousif, A.; Bouziane, K.; Elzain, M.E.; Ren, X.; Berry, Frank; Widatallah, H.M.; Al Rawas, A.; Gismelseed, A. and Al-Omari, I.A. (2004). Magnetic properties of nanocrystalline Fecu(x)Cu(1-x) alloys prepared by ball milling. Hyperfine Interactions, 156(1) pp. 213–221.

DOI: https://doi.org/10.1023/B:HYPE.0000043308.68302.c2

Abstract

X-ray diffraction, Mossbauer and magnetization measurements were used to study FexCu1-x alloys prepared by ball-milling. The X-ray data show the formation of a nanocrystalline Fe-Cu solid solution. The samples with xgreater than or equal to0.8 and xless than or equal to0.5 exhibit bcc or fcc phase, respectively. Both the bcc and fcc phases are principally ferromagnetic for xgreater than or equal to0.2, but the sample with x=0.1 remains paramagnetic down to 78 K. The influence of the local environment on the hyperfine parameters and the local magnetic moment are discussed using calculations based on the discrete-variational method in the local density approximation.

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