The magnetic and structural properties of hydrothermal-synthesized single-crystal Sn1-xFexO2 nanograins

被引：22

作者：

Liu, J. F.

Lu, M. F.

Chai, P.

Fu, L.

Wang, Z. L.

Cao, X. Q.

Meng, J. ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, Key Lab Rare Earth Chem & Phys, Changchun 130022, Peoples R China

[2] SW Jiatong Univ, SuperConduct R&D Ctr, Chengdu 610031, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 317卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

dilute magnetism semiconductor; tin dioxide; nanograin; room-temperature ferromagnetism;

D O I：

10.1016/j.jmmm.2007.02.206

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The crystal structure and magnetic properties of Sn1-xFexO2 nanograins synthesized by simple hydrothermal method using SnCl4 center dot 5H(2)O and FeCl3 center dot 6H(2)O as raw materials are studied. No secondary phase was found in the XRD spectrum. The linear change of lattice volume for different Fe content strongly supports that the Fe3+ substitutes Sn4+ in SnO2 lattice. A Raman and IR spectra study indicated that the Fe incorporates into the SnO2 lattice. Both ferromagnetic and paramagnetic signals are detected in the Mossbauer spectra. The Sn1-xFexO2 (x <= 0.10) samples show room-temperature ferromagnetism (RTFM) and the saturation magnetization increased with increasing Fe percent. Fe ions present three kinds of magnetic behaviors including paramagnetic, ferromagnetic, and antiferromagnetic in the samples observed by investigation of the M-H and M-T curves. The weak RTFM was due to only a fraction of Fe ions contributing to magnetic-order coupling mediated by oxygen vacancy. (c) 2007 Elsevier B. V. All rights reserved.

引用

页码：1 / 7

页数：7

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