Back to Search
Start Over
Magnon softening in exchange-coupled hard-soft nanocomposites.
- Source :
-
Journal of Applied Physics . Mar2013, Vol. 113 Issue 12, p123906. 6p. 1 Diagram, 4 Graphs. - Publication Year :
- 2013
-
Abstract
- We study spin excitations of the fully aligned state for three-dimensional nanocomposites of exchange coupled hard (SmFeN) and soft (FeCo) phases. The dipolar interaction lowers the magnon energy and controls the spin wave gap at k = 0, which closes when the amount of soft phase exceeds a critical value. With the addition of soft phase or increasing temperature the system moves to another ground state characterized by a tilting of the magnetization at the boundaries between spins of the hard and the soft phases. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 113
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 86447228
- Full Text :
- https://doi.org/10.1063/1.4797491