Influence of Al substitution on the structure and Co-sublattice magnetocrystalline anisotropy of Gd2Co17 compounds
- 1. State Key Laboratory of Magnetism, Institute of Physics Center of Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, Peoples Republic of (China)
- 2. Max-Planck-Institute fuer Metallforschung, Institut fuer Physik, Heisenbergstrasse 1, D-70569 Stuttgart (Germany)
Description
The structure and magnetic properties of Gd2Co17-xAlx compounds were investigated. All samples have a rhombohedral Th2Zn17-type structure and the replacement of Co by Al results in an approximately linear increase in the unit cell volumes at a rate of 8.2 Angstrom 3/Al. The Curie temperature decreases monotically with the increase of Al concentration. On the basis of magnetization curves at the compensation temperature, the intersublattice-molecular-field coefficient, nRT, and the RT exchange-coupling constant JRT have been determined. It is noteworthy that the substitution of Al has a significant effect on the magnetocrystalline anisotropy of the Co sublattice, and changes the easy magnetization direction of Gd2Co17-xAlx compounds from the basal plane to the c axis. copyright 1997 American Institute of Physics
Additional details
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 70
- Journal Issue
- 25
- Journal Page Range
- p. 3467-3469.
- ISSN
- 0003-6951
- CODEN
- APPLAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 28071453
- Subject category
- S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALUMINIUM ADDITIONS; ALUMINIUM ALLOYS; COBALT ALLOYS; CRYSTAL STRUCTURE; CURIE POINT; EXCHANGE INTERACTIONS; FERROMAGNETIC MATERIALS; GADOLINIUM ALLOYS; MAGNETIC MOMENTS; MAGNETIZATION
- Descriptors DEC
- ALLOYS; INTERACTIONS; MAGNETIC MATERIALS; MAGNETIC PROPERTIES; MATERIALS; PHYSICAL PROPERTIES; RARE EARTH ALLOYS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS; TRANSITION TEMPERATURE