Phase Evolution and Magnetic Properties of Sn1-2xFexNbxO2(0.45≤x≤0.50)

高等学校化学研究 ›› 2010, Vol. 26 ›› Issue (6): 876-879.

Phase Evolution and Magnetic Properties of Sn1-2xFexNbxO2(0.45≤x≤0.50)

WANG Yu*, JIA Xiao-lin, DONG Lin and GUAN Shao-kang

School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China

收稿日期:2009-11-30 修回日期:2010-04-27 出版日期:2010-11-25 发布日期:2010-12-01
通讯作者: WANG Yu E-mail:wangyu@zzu.edu.cn
作者简介:WANG Yu. E-mail: wangyu@zzu.edu.cn
基金资助:
Supported by the Postdoctoral Foundation of Henan Province, China.

Phase Evolution and Magnetic Properties of Sn1-2xFexNbxO2(0.45≤x≤0.50)

WANG Yu*, JIA Xiao-lin, DONG Lin and GUAN Shao-kang

School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China

Received:2009-11-30 Revised:2010-04-27 Online:2010-11-25 Published:2010-12-01
Contact: WANG Yu E-mail:wangyu@zzu.edu.cn
About author:WANG Yu. E-mail: wangyu@zzu.edu.cn
Supported by:
Supported by the Postdoctoral Foundation of Henan Province, China.

摘要/Abstract

摘要： Sn1–2xFexNbxO2(0.45≤x≤0.50) samples were prepared at 1000 °C via a simple chemical co-precipitation method. The effects of the concentrations of Sn doped on the structures and magnetic properties of the samples have been investigated. A systematic variation from monoclinic to orthorhombic FeNbO4 structure was observed with increasing Sn content. The phase evolutions were observed from monoclinic structure with x=0.50 to the coexistence of monoclinic and orthorhombic structures with x=0.48, 0.47, 0.46, and then to orthorhombic structure with x=0.45. Antiferromagnetic behavior was observed for all the samples, and the magnetic ordering temperatures decrease with increasing Sn concentration, which further indicated the sequence of phase transitions. The results suggest that the incorporation of Sn can stabilize the orthorhombic FeNbO4.

关键词: FeNbO4, Sn doping, Structure, Magnetic behavior

Abstract: Sn1–2xFexNbxO2(0.45≤x≤0.50) samples were prepared at 1000 °C via a simple chemical co-precipitation method. The effects of the concentrations of Sn doped on the structures and magnetic properties of the samples have been investigated. A systematic variation from monoclinic to orthorhombic FeNbO4 structure was observed with increasing Sn content. The phase evolutions were observed from monoclinic structure with x=0.50 to the coexistence of monoclinic and orthorhombic structures with x=0.48, 0.47, 0.46, and then to orthorhombic structure with x=0.45. Antiferromagnetic behavior was observed for all the samples, and the magnetic ordering temperatures decrease with increasing Sn concentration, which further indicated the sequence of phase transitions. The results suggest that the incorporation of Sn can stabilize the orthorhombic FeNbO4.

Key words: FeNbO4, Sn doping, Structure, Magnetic behavior

WANG Yu*, JIA Xiao-lin, DONG Lin and GUAN Shao-kang. Phase Evolution and Magnetic Properties of Sn1-2xFexNbxO2(0.45≤x≤0.50)[J]. 高等学校化学研究, 2010, 26(6): 876-879.

WANG Yu*, JIA Xiao-lin, DONG Lin and GUAN Shao-kang. Phase Evolution and Magnetic Properties of Sn1-2xFexNbxO2(0.45≤x≤0.50)[J]. Chemical Research in Chinese Universities, 2010, 26(6): 876-879.

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Phase Evolution and Magnetic Properties of Sn1-2xFexNbxO2(0.45≤x≤0.50)

Phase Evolution and Magnetic Properties of Sn1-2xFexNbxO2(0.45≤x≤0.50)

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