Magnetic patterning perpendicular anisotropy FePd alloy films by masked ion irradiation
| Autor: | F. Tanczikó, L. Bommer, László Bottyán, Gábor Vértesy, Norbert Nagy, Dániel G. Merkel, J. Waizinger, Zsolt Zolnai |
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| Rok vydání: | 2011 |
| Předmět: |
Materials science
Magnetic domain Condensed matter physics Physics::Instrumentation and Detectors Film plane Analytical chemistry General Physics and Astronomy Condensed Matter::Materials Science Magnetization Magnetic anisotropy Ion implantation Conversion electron mössbauer spectroscopy Condensed Matter::Superconductivity Monolayer Magnetic force microscope |
| Zdroj: | Journal of Applied Physics. 109:124302 |
| ISSN: | 1089-7550 0021-8979 |
| DOI: | 10.1063/1.3596535 |
| Popis: | The nanopatterning of magnetic films by ion implantation is reported. Highly L10-ordered Fe47Pd53 epitaxial alloy films on a MgO(001) substrate were covered by a monolayer of silica spheres in a Langmuir film balance. Using this sphere layer as an implantation mask, the samples were irradiated by Ne+ or Fe+ ions with energies of 35 keV and 100 keV, respectively. After the silica mask was removed, the samples were characterized via conversion electron Mossbauer spectroscopy, longitudinal and polar magneto-optical Kerr effect, and atomic force and magnetic force microscopy. We find that the magnetic stripe domains observed in the nonirradiated sample were converted into a regular 2D magnetic pattern of hcp character upon 1 × 1015/cm2 35 keV neon or 1 × 1014/cm2 100 keV iron irradiation, with the direction of magnetization remaining out of plane in the nodes of the hcp lattice and relaxed into the film plane in the inter-node region, resulting in an overall in-plane magnetic softening of the film. |
| Databáze: | OpenAIRE |
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