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

• 来源期刊: 中国物理(英文版)
• 年，卷（期）: 2000,（4）
• 所属期刊栏目: CONDENSED MATTER：ELECTRONIC STRUCTURE
• 页码范围: 304-308
• 页数: 5页
• 语种: 英文

摘要

The samples Fe0.4Cu0.6 and Fe0.5Cu0.5 ball milled for 50h are investigated by X-ray diffraction, Mossbauer 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 2.40μB · Compared with theoretical predication, the Fe atoms in the fcc phase are in high spin state.