Published December 4, 2006
| Version v1
Journal article
Preparation, microstructure, and magnetic properties of bulk nanocrystalline Gd metal
Creators
- 1. Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing 100022 (China) and School of Materials Science, Beijing University of Technology, Beijing 100022 (China)
Description
Bulk nanocrystalline gadolinium metal was prepared using spark plasma sintering (SPS) and subsequent annealing process. The SPS Gd metal had a single phase with a mean grain size of about 10 nm. A pressure-induced C-axis crystal texture was found in the SPS Gd sample. With the decrease of Gd grains from micrometer to nanometer range, the Curie temperature TC decreased by 10.7 K and the magnetic moment per Gd atom at 5 K dropped noticeably from 7.81μB to 6.31μB. These results indicate the remarkable influence of the nanostructure on the magnetism of Gd due to the finite size effect
Additional details
Identifiers
- DOI
- 10.1063/1.2400079;
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 89
- Journal Issue
- 23
- Journal Page Range
- p. 232504-232504.3
- ISSN
- 0003-6951
- CODEN
- APPLAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38047170
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANNEALING; CRYSTALS; CURIE POINT; FERROMAGNETIC MATERIALS; GADOLINIUM; GRAIN SIZE; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; MAGNETISM; NANOSTRUCTURES; PLASMA; SINTERING; TEXTURE
- Descriptors DEC
- ELEMENTS; FABRICATION; HEAT TREATMENTS; MAGNETIC MATERIALS; MATERIALS; METALS; MICROSTRUCTURE; PHYSICAL PROPERTIES; RARE EARTHS; SIZE; THERMODYNAMIC PROPERTIES; TRANSITION TEMPERATURE
Optional Information
- Notes
- (c) 2006 American Institute of Physics