Effects of iron substitution on magnetic properties of SmCo6.8-xFexHf0.2 compounds
Creators
- 1. Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100080 (China)
- 2. Institute of Functional Materials, Central Iron and Steel Research Institute, Beijing 100081 (China)
Description
The effects of iron substitution on the crystal structure and magnetic properties of SmCo6.8-xFexHf0.2 (x = 0.1, 0.3, 0.5, and 0.7) compounds were investigated by means of x-ray powder diffraction and magnetic measurements. The as-cast SmCo6.8-xFexHf0.2 compounds crystallize in the TbCu7-type structure with the space group P6/mmm. The lattice parameters a and c increase with the Fe content. The SmCo6.8-xFexHf0.2 compounds exhibit ferromagnetic order with a strong room temperature uniaxial magnetocrystalline anisotropy. The Curie temperature and saturation magnetization increase with the Fe content. The magnetic anisotropy field of the compounds reaches a maximum value at x = 0.5. The anomalous concentration dependence of the anisotropy field is explained by considering the contribution of individual site anisotropy in combination with the preferential occupation of 3d ions on different sites
Availability note (English)
Available online at http://stacks.iop.org/0953-8984/16/4963/cm4_28_016.pdf or at the Web site for the Journal of Physics. Condensed Matter (ISSN 1361-648X) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0953-8984/16/4963/cm4_28_016.pdf; http://www.iop.org/;
- DOI
- 10.1088/0953-8984/16/28/016;
- PII
- S0953-8984(04)78190-4;
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 16
- Journal Issue
- 28
- Journal Page Range
- p. 4963-4969
- ISSN
- 0953-8984
- CODEN
- JCOMEL
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36004484
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANISOTROPY; COBALT; CONCENTRATION RATIO; CURIE POINT; HAFNIUM; HEXAGONAL LATTICES; INTERMETALLIC COMPOUNDS; IRON ADDITIONS; LATTICE PARAMETERS; MAGNETIC PROPERTIES; MAGNETIZATION; SAMARIUM; SPACE GROUPS; X-RAY DIFFRACTION
- Descriptors DEC
- ALLOYS; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFRACTION; ELEMENTS; IRON ALLOYS; METALS; PHYSICAL PROPERTIES; RARE EARTHS; REFRACTORY METALS; SCATTERING; SYMMETRY GROUPS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS; TRANSITION TEMPERATURE