Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 377, Issue -, Pages 362-367Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2014.10.097
Keywords
BaFe12O19; XAFS; XPS; Ions occupation; Substitution
Funding
- National Natural Science Foundation [51202111]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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M-type barium hexaferrites doped with Sm3+, Ba1-xSmxFe12O19 (x=0.00, 0.05, 0.10, 0.15, 0.20, 0.30, 0.50) were prepared by conventional solid state reaction technique. Occupation of Sm3+ ions in Ba1-xSmxFe12O19 was investigated by X-ray diffraction, X-ray absorption fine structure and X-ray photoelectron spectrum. The changes of crystal cell volume and valency of Sm, Ba and Fe ions indicated that Sm3+ occupied Ba2+ sites and Fe3+ ions were partially reduced to Fe2+ ions to keep the valence neutrality. (C) 2014 Elsevier B.V. All rights reserved.
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