中国物理B ›› 2000, Vol. 9 ›› Issue (4): 304-308.doi: 10.1088/1009-1963/9/4/010
王汪陈1, 熊曹水1, 沈保根2, 李玉芝3, 林磊3
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
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.
中图分类号: (Saturation moments and magnetic susceptibilities)