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Thermal stability of coupled ferromagnetic and superparamagnetic particles.
- Source :
-
Journal of Applied Physics . 5/15/2003, Vol. 93 Issue 10, p8474. 3p. 1 Diagram, 1 Graph. - Publication Year :
- 2003
-
Abstract
- We consider a single-domain ferromagnetic particle with uniaxial anisotropy coupled to a single-domain soft ferromagnetic particle (superparamagnetic particle). The problem of thermally agitated magnetization reversal in this case can be reduced to the random magnetization dynamics of the first particle with an effectively larger anisotropy field. The magnetic external field is also altered in a manner that depends on the sign of the coupling and can be either enhanced or suppressed. [ABSTRACT FROM AUTHOR]
- Subjects :
- *FERROMAGNETIC materials
*ANISOTROPY
*MAGNETIZATION
*MAGNETIC fields
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 93
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 9718208
- Full Text :
- https://doi.org/10.1063/1.1555853