中国物理B ›› 2000, Vol. 9 ›› Issue (4): 304-308.doi: 10.1088/1009-1963/9/4/010

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MAGNETIC PROPERTIES OF BALL MILLED FexCu1-x (x=0.4, 0.5) ALLOY

王汪陈1, 熊曹水1, 沈保根2, 李玉芝3, 林磊3   

  1. (1)Department of physics, University of Science and Technology of China, Hefei 230026, China; (2)Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; (3)Structure Research Laboratory, University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:1999-10-19 出版日期:2000-04-15 发布日期:2005-06-12

MAGNETIC PROPERTIES OF BALL MILLED FexCu1-x (x=0.4, 0.5) ALLOY

Li Yu-zhi (李玉芝)a, Lin lei (林磊)a, Wang Wang-chen (王汪陈)b, Xiong Cao-shui (熊曹水)b, Shen Bao-gen (沈保根)c   


  1. a Structure Research Laboratory, University of Science and Technology of China, Hefei 230026, China b Department of physics, University of Science and Technology of China, Hefei 230026, China;  c Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China;
  • Received:1999-10-19 Online:2000-04-15 Published:2005-06-12

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摘要： 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.

Abstract: The samples Fe0.4Cu0.6 and Fe0.5Cu0.5 ball milled for 50 h are investigated by X-ray diffraction, M$\ddot{\rm o}$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 $\mu_{\rm B}$. Compared with theoretical predication, the Fe atoms in the fcc phase are in high spin state.

中图分类号:  (Saturation moments and magnetic susceptibilities)

  • 75.30.Cr
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)