Structural and magnetic properties of chemically synthesized Sn1-xMnxO2 nanocrystalline powders

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	Structural and magnetic properties of chemically synthesized Sn1-xMnxO2 nanocrystalline powders
	L. B. Duan; G. H. Rao; J. Yu; Y. C. Wang; G. Y. Liu; J. K. Liang
	2007
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	101 期号:6
摘要	Sn1-xMnxO2 nanocrystalline powders were synthesized by a wet chemical method (x <= 0.08). X-ray diffraction reveals that single-phase rutile Sn1-xMnxO2 was obtained for x up to about 0.06. Evolution of cell parameters, x-ray photoelectron spectroscopy measurements, thermogravimetric analysis, and quantitative evaluation of the magnetization data all indicate that Mn element acts as Mn4+ for x=0.01 and as Mn3+ for x=0.02 and 0.04 at room temperature, but as Mn3+ for all the samples at 5 K. Magnetization data show that the average magnetic moment per Mn site decreases with increasing x at 5 K, while the effective fraction of the Mn ions contributing to the magnetization decreases. The magnetic properties of the Sn1-xMnxO2 are discussed based on the competition between the free carrier mediated Ruderman-Kittel-Kasuya-Yosida interaction and antiferromagnetic superexchange interaction in the system. (c) 2007 American Institute of Physics.
部门归属	chinese acad sci, inst phys, beijing natl lab condensed matter phys, beijing 100080, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;duan, lb (reprint author), chinese acad sci, inst phys, beijing natl lab condensed matter phys, beijing 100080, peoples r china;ghrao@aphy.iphy.ac.cn
关键词	Room-temperature Ferromagnetism Doped Sno2 Semiconductors Transition Zno Mn Co Oxides Films Bulk
URL	查看原文
WOS记录号	WOS:000245317700103
引用统计	被引频次：35[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33511
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. B. Duan,G. H. Rao,J. Yu,et al. Structural and magnetic properties of chemically synthesized Sn1-xMnxO2 nanocrystalline powders[J]. Journal of Applied Physics,2007,101(6).
APA	L. B. Duan,G. H. Rao,J. Yu,Y. C. Wang,G. Y. Liu,&J. K. Liang.(2007).Structural and magnetic properties of chemically synthesized Sn1-xMnxO2 nanocrystalline powders.Journal of Applied Physics,101(6).
MLA	L. B. Duan,et al."Structural and magnetic properties of chemically synthesized Sn1-xMnxO2 nanocrystalline powders".Journal of Applied Physics 101.6(2007).