共 5 条
Structure and magnetic properties of iron-based cyanide compounds
被引:7
作者:
Ding, J
[1
]
Ng, CW
[1
]
Shi, Y
[1
]
机构:
[1] Natl Univ Singapore, Dept Mat Sci, Singapore 119260, Singapore
关键词:
cyanide compounds;
molecular magnet;
Mossbauer spectroscopy;
photo-luminescence;
D O I:
10.1109/20.951353
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
The M-1.5[Fe(CN)(6)]. zH(2)O powders with M = Ni, Co, Cu and Zn and z = 4 - 7 were prepared by co-precipitation. A structural change was found after heat treatment at a temperature in the range of 100-200 degreesC. Mossbauer and magnetic measurements have shown that the Fe-III-CN-M-II state was the major structure in the co-precipitated form, while the Fe-II-CN-M-III bond was formed in the annealed samples. The stable Fe-II-CN-M-III state could convert into a metastable Fe-III-CN-M-II state accompanied by two peaks in UV-visible spectra. A broad peak was observed in the photo-luminensence spectra, indicating the potential for optical applications.
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页码:2938 / 2940
页数:3
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