Magnetic Properties of Manganese-Iron Multi-Metal Cyanide Compound Ni1.15Mn0.35[Fe(CN)6]•6H2O

被引：0
|
作者：
He, Yun [1 ]
Ji, Zhimin [1 ]
Lin, Qing [1 ,2 ]
Huang, Haifu [1 ,3 ]
Kong, Wenjie [1 ]
机构：
[1] Guangxi Normal Univ, Coll Phys & Technol, Guilin 541004, Peoples R China
[2] Hainan Med Coll, Dept Informat Technol, Haikou 571101, Peoples R China
[3] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
来源：
ASIAN JOURNAL OF CHEMISTRY | 2014年 / 26卷 / 17期
基金：
中国国家自然科学基金;
关键词：
Prussian blue analogue; Magnetic transition; Infrared spectroscopy; Ferromagnetic; Spin-glass; PRUSSIAN BLUE ANALOGS; TEMPERATURE;
D O I：
10.14233/ajchem.2014.18136
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A multi-metal prussian blue compound Ni1.15Mn0.35[Fe(CN)(6)]center dot 6H(2)O has been synthesized. The IR spectrum of the compound shows two bands at 2096.42 and 2162.13 cm -1 indicating the existence of two types of cyanide groups. It undergoes a paramagnetic to ferromagnetic transition at 21 K. These results indicate that there exist a ferromagnetic exchange interaction in the complexes. According to Curie-Weiss law, paramagnetic Curie temperature (Q) is 13.81 K and the Curie-Weiss constant (C) is 2.21 cm 3 K mol -1. In addition, the chi' (T) and chi'' (T) show clear peak around 18-20 K. The behaviour of chi' and chi'' is typical of a spin glass state go through a maximum with strong frequency dependence. The observed value of coercive field (H-c) and remanent magnetization (Mr) for the compound are 1.72 KOe and 0.682 mu b, respectively.
引用
收藏
页码：5473 / 5477
页数：5
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