Abstract
The magnetoanisotropy for Co and Co-Pt nanocrystals produced by sputtering was evaluated by the law of approach to saturation. The volume fraction R ranged from 0 to 80%, but the anisotropy evaluated under the assumption that it behaves as uniaxial was not sensitive to R. Calculation of Hc using these Kueff agrees well with the measured Hc. The ratio Mr/Ms is near 0.5 irrespective of R. This also supports uniaxial switching behaviors for these nanocrystals.
Original language | English |
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Pages (from-to) | 1327-1331 |
Number of pages | 5 |
Journal | Scripta Materialia |
Volume | 44 |
Issue number | 8-9 |
DOIs | |
Publication status | Published - 2001 May 18 |
Keywords
- 2 Co-Pt
- Coercivity
- Fine particle
- Magnetic anisotropy
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys