Sublattice occupation in Sr1-xLaxFe12-xCoxO19 hexagonal ferrite analyzed by Mossbauer spectrometry and Raman spectroscopy

被引:119
作者
Morel, A [1 ]
Le Breton, JM
Kreisel, J
Wiesinger, G
Kools, F
Tenaud, P
机构
[1] Carbone Lorraine Ferrites, F-27016 Evreux, France
[2] Carbone Lorraine Ferrites, F-38830 St Pierre Dallevard, France
[3] Univ Rouen, CNRS, GPM, UMR 6634, F-76821 Mont St Aignan, France
[4] Ecole Natl Super Phys Grenoble, Mat & Genie Phys Lab, CNRS, UMR 5628, F-38402 St Martin Dheres, France
[5] Vienna Tech Univ, Inst Expt Phys, A-1040 Vienna, Austria
关键词
ferrites-hexagonal; substitution effects; Mossbauer spectroscopy-ferrites; Raman scattering;
D O I
10.1016/S0304-8853(01)00962-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The cationic distribution of Co2+ in Sr1-xLaxFe12-xCoxO19 hexagonal ferrite is investigated by Mossbauer spectrometry and Raman spectroscopy. The two complementary techniques lead to the same conclusion: the majority of the Co2+ is substituted for Fe3+ in the octahedral 4f(2) and 2a sites, in agreement with the magnetization measurements, A valence change of some Fe3+ to Fe2+ in the 2a site is also evidenced. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:1405 / 1407
页数:3
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