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Exchange coupling and NOL magnetism consideration in Co1-xFex specular spin-valves
- Source :
-
Journal of Magnetism & Magnetic Materials . Feb2005, Vol. 287, p381-386. 6p. - Publication Year :
- 2005
-
Abstract
- Abstract: To confirm the origin of the exchange coupling through the nano-oxide layer (NOL), the detailed analyses of the magnetization curve and the temperature dependence on magnetization for the Co1-xFex-NOL samples with various oxidation processes are investigated. The field cooling effect is observed for NOL-inserted samples, which suggests the existence of the antiferromagnetic (AFM) component in the NOL. The characteristic temperature (blocking temperature) increases with increase in the Fe content for Co1-xFex(x=0.08,0.17,0.26)-NOL. These results support that NOL pinning appears higher than room temperature. Further, the twisted coupling through the NOL observed for the Co0.50Fe0.50-NOL is discussed from the viewpoint of the magnetic roughness due to the ferrimagnetic nature of the very thin NOL in specular spin valve (SPSV). [Copyright &y& Elsevier]
- Subjects :
- *MAGNETIZATION
*OXIDATION
*FERROMAGNETISM
*MAGNETISM
Subjects
Details
- Language :
- English
- ISSN :
- 03048853
- Volume :
- 287
- Database :
- Academic Search Index
- Journal :
- Journal of Magnetism & Magnetic Materials
- Publication Type :
- Academic Journal
- Accession number :
- 16211795
- Full Text :
- https://doi.org/10.1016/j.jmmm.2004.10.063