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Chin. Phys., 2000, Vol. 9(4): 304-308    DOI: 10.1088/1009-1963/9/4/010


Wang Wang-chena, Xiong Cao-shuia, Shen Bao-genb, Li Yu-zhic, Lin leic
a Department of physics, University of Science and Technology of China, Hefei 230026, China; b Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; c Structure Research Laboratory, University of Science and Technology of China, Hefei 230026, China
Abstract  The samples Fe0.4Cu0.6 and Fe0.5Cu0.5 ball milled for 50 h are investigated by X-ray diffraction, M?ssbauer spectra, as well as magnetic measurement. The experiments show that the structure of the samples is fcc, with lattice constant 0.361 nm and there are fcc Fe-rich phase and fcc Cu-rich phase in the samples. Most of Fe atoms (91%) are in the fcc Fe-rich phase, which is a ferromagnetic phase. The M-H curve at 1.5 K shows the saturation magnetization of the samples are 80.5 emu/g and 101.6 emu/g for Fe0.4Cu0.6 and Fe0.5Cu0.5 respectively. The average magnetic moment of Fe atoms is deduced to be 2.40 μB . Compared with theoretical predication, the Fe atoms in the fcc phase are in high spin state.
Received:  19 October 1999      Published:  12 June 2005
PACS:  75.30.Cr (Saturation moments and magnetic susceptibilities)  
  75.50.Bb (Fe and its alloys)  
  75.60.Ej (Magnetization curves, hysteresis, Barkhausen and related effects)  
  76.80.+y (M?ssbauer effect; other γ-ray spectroscopy)  

Cite this article: 

Wang Wang-chen, Xiong Cao-shui, Shen Bao-gen, Li Yu-zhi, Lin lei MAGNETIC PROPERTIES OF BALL MILLED FexCu1-x (x=0.4, 0.5) ALLOY 2000 Chin. Phys. 9 304

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