Magneto-optical Kerr spectra and magnetic properties of Co-substituted M-type strontium ferrites

被引:46
作者
Liu, Xian-song [1 ]
Fernandez-Garcia, Lucia [2 ]
Hu, Feng [1 ]
Zhu, De-ru [1 ]
Suarez, Marta [2 ]
Luis Menendez, Jose [2 ]
机构
[1] Anhui Univ, Engn Technol Res Ctr Magnet Mat, Sch Phys & Mat Sci, Hefei 230039, Anhui, Peoples R China
[2] Univ Oviedo, CINN, CSIC, Llanera 33428, Asturias, Spain
基金
中国国家自然科学基金;
关键词
Magnetic materials; Sintering; Magnetometer; Magnetic properties; HEXAFERRITE FILMS; BARIUM FERRITE; MICROSTRUCTURE; ENHANCEMENT; SRFE12O19;
D O I
10.1016/j.matchemphys.2012.01.123
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
M-type strontium ferrites SrFe12-xCoxO19 (x = 0, 0.05, 0.10, 0.15, 0.20) were prepared by the conventional ceramic technology. The structure, magnetic properties and magneto-optical Kerr activity of the samples were investigated by X-ray diffraction (XRD), vibrating sample magnetometer (VSM) and magneto-optical ellipsometry, respectively. X-ray diffraction showed that all the samples were single phase ferrites. The magnetic properties, especially the coercive field, were remarkably modified due to the substitution of cobalt. Most importantly, a noticeable Kerr activity was demonstrated in the Co-substituted M-type strontium ferrites with x = 0.20. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:961 / 964
页数:4
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