亚稳态化合物Ce_2Fe_(23)B

金属学报, 1993, 29(6): 8-12.

亚稳态化合物Ce_2Fe_(23)B_3的结构与磁性

副研究员

中国科学院物理研究所磁学国家重点实验室

基金项目: 国家自然科学基金

关键词：亚稳态化合物 , structure , magnetic property

STRUCTURE AND MAGNETIC PROPERTIES OF METASTABLE COMPOUND Ce_2Fe_(23)B3

CAO Lei , GONG Huayang , YANG Linyuan , KONG Linshu , GUO Huiqun Stale Key Laboratory of Magnetism , Institute of Physics

Keywords： metastable compound , Ce_2Fe_(23)B_3 , 磁性

研究了非晶态Ce_2Fe_(23)B_3合金的晶化以及亚稳态化合物Ce_2Fe_(23)B_3的结构与磁性XRD分析证实,Ce_2Fe_(23)B_3为bcc结构,晶格常数α=1.417nm由Ce_2Fe_(23)B_3的室温Mossbauer谱,确定不同Fe位Fe原子磁矩的大小依次为:μFe(48e_1)>μFe(48e_2)>μFe(48e_3)>μFe(16c)>μFe(24d),平均每个Fe原子和Ce原子的磁矩分别为1.94和0.85μB

Crystallization of amorphous Ce_2Fe_(23)B_3 alloys as well as structure and mag-netic properties of metastable compound Ce_2Fe_(23)B_3 were studied. X-ray diffraction analysisconfirmed that the crystal structure of Ce_2Fe_(23)B_3 compound is body-centered cubic, its lat-tice constant α=1.417 nm. Measurement of room temperature hyperfine field ofCe_2Fe_(23)B_3 observeed that the size of Fe magnetic moment in different Fe site is orderlyμ_(Fe)(48e_1)>μ_(Fe)(48e_2)>μ_(Fe)(48e_3)>μ_(Fe)(16c)>μ_(Fe)(24d). Average magnetic moments per Fe atomand per Ce atom are 1.94 and 0.85μ_B respectively.

参考文献

[1]
[2]
[3]
[4]

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网