Published March 2013
| Version v1
Journal article
Mössbauer and X-ray diffraction study of Co2+–Si4+ substituted M-type barium hexaferrite BaFe12−2xSoxSixO19±γ
- 1. V.I. Vernadskii Institute of General and Inorganic Chemistry, 32/34 Prospect Palladina, Kyiv-142 03680 (Ukraine)
- 2. Institute of Geochemistry, Mineralogy and Ore Formation, 34 Prospect Palladina, Kyiv-164 03680 (Ukraine)
Description
Using X-ray powder diffractions, Mössbauer spectroscopy, and magnetic measurements, the effect of dopants (Co2++Si4+) on the fine structure and magnetic properties of M-type barium hexaferrite prepared by hydroxide and carbonate precipitations has been studied. It has been shown that the magnetic properties of M-type barium hexaferrite can be controlled by heterovalent substitution 2Fe3+→So2++Si4+. - Highlights: ► In the range x=0–0.3, homogeneous solid solutions BaFe12−2xCoxSixO19±γ are formed. ► Only Fe3+ions in the high-spin state present in the homogeneous region. ► So2+, Si4+ ions prefer to occupy crystallographic positions 12k, 4f1 respectively. ► Substitution 2Fe3+→So2++Si4+ decreases particle size and coercivity.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.jmmm.2012.10.035Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2012.10.035;
- PII
- S0304-8853(12)00857-8;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 330
- Journal Page Range
- p. 72-75
- ISSN
- 0304-8853
- CODEN
- JMMMDC
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 44109719
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BARIUM; COBALT IONS; COERCIVE FORCE; CRYSTALLOGRAPHY; DOPED MATERIALS; FERRITES; FINE STRUCTURE; HIGH SPIN STATES; IRON IONS; MAGNETIC PROPERTIES; PARTICLE SIZE; PRECIPITATION; SILICON IONS; SOLID SOLUTIONS; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALINE EARTH METALS; CHARGED PARTICLES; COHERENT SCATTERING; DIFFRACTION; DISPERSIONS; ELEMENTS; ENERGY LEVELS; FERRIMAGNETIC MATERIALS; HOMOGENEOUS MIXTURES; IONS; IRON COMPOUNDS; MAGNETIC MATERIALS; MATERIALS; METALS; MIXTURES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SCATTERING; SEPARATION PROCESSES; SIZE; SOLUTIONS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.