Structure and magnetic properties of MgFe2O4 nanoparticles prepared by the low-temperature solid-state reaction method

doi:10.4028/www.scientific.net/MSF.686.316

CORC > 近代物理研究所 > 中国科学院近代物理研究所 > 先进核能材料研究室（ADS）

	Structure and magnetic properties of MgFe2O4 nanoparticles prepared by the low-temperature solid-state reaction method
	Zhou, CG ; Tang, JM ; Pan, F ; Sun, Jianrong1 ; Wang, Zhiguang1 ; Wang, Yuyu1 ; Wei, Kongfang 1; Li, Fashen 2; Han, YF
	2011
关键词	MgFe2O4 Nanoparticle Low-temperature solid-state reaction
卷号	686
DOI	10.4028/www.scientific.net/MSF.686.316
页码	316-+
英文摘要	MgFe2O4 nanoparticles with different grain sizes were prepared by the low-temperature solid-state reaction method. The X-ray diffractometer (XRD), vibrating sample magnetometer (VSM), superconducting quantum interference devices (SQUID) and Fe-57 Mossbauer spectroscopy (MS) were used to characterize the structure, magnetic properties and surface anisotropy of nanoparticles. Oxygen parameters suggested that lattice distortion was decreased with reducing particle size. In comparison with the bulk material, smaller saturation magnetization (M-s) and larger coercive force (H-c) for nanoparticles were observed. The critical sizes for transition from multidomain to single domain and for superparamagnetic transition were estimated to be 25 nm and 28 nm, respectively. In summary, the fabricating conditions for the low-temperature solid-state reaction method are studied to improve M-s and reduce H-c of the films, making the films suitable to the applications of the magnetic targeted drug.
会议录	ADVANCED STRUCTURAL MATERIALS
会议录出版者	TRANS TECH PUBLICATIONS LTD
会议录出版地	KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
语种	英语
资助项目	Major State Basic Research Development Program of China '973' Program[2010CB832902]
WOS研究方向	Materials Science
WOS记录号	WOS:000302587600057
内容类型	会议论文
源URL	[http://119.78.100.186/handle/113462/58270]
专题	近代物理研究所_先进核能材料研究室（ADS）近代物理研究所_实验物理中心
通讯作者	Sun, Jianrong
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, Minist Educ, Key Lab Magnetism &Magnet Mat Educ, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhou, CG,Tang, JM,Pan, F,et al. Structure and magnetic properties of MgFe2O4 nanoparticles prepared by the low-temperature solid-state reaction method[C]. 见:.