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Modifications of magnetic anisotropy and magnetization reversal in [Co0.4 nm/Pd0.7 nm]50 multilayers induced by 10 keV-He ion bombardment.
- Source :
-
Journal of Applied Physics . Sep2012, Vol. 112 Issue 6, p063901. 6p. - Publication Year :
- 2012
-
Abstract
- [Co0.4 nm/Pd0.7 nm]50 multilayers with Pd film thicknesses in the first ferromagnetic maximum of interlayer exchange coupling display almost purely perpendicular-to-plane anisotropy and labyrinth stripe domain patterns in remanence. Their magnetization reversal is characterized by domain nucleation starting at a defined field HN and domain wall movement in a defined magnetic field range. The modification of the magnetization reversal by 10 keV He ion bombardment due to the reduced magnetic anisotropy has been investigated by polar magneto-optical Kerr effect, by vibrating sample magnetometry, and by magnetic force microscopy at room temperature. It is shown that the ion bombardment creates and increases areas with ferromagnetic in-plane anisotropy and proportions of the sample showing superparamagnetism, the latter predominantly in the deeper layers. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ANISOTROPY
*MAGNETIZATION
*ION bombardment
*PARAMAGNETISM
*MAGNETOOPTICS
*NUCLEATION
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 112
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 82069412
- Full Text :
- https://doi.org/10.1063/1.4752274