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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Buschbeck, J.
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Topics
Publications (9/9 displayed)
- 2011Martensite transformation of epitaxial Ni-Ti filmscitations
- 2011Modulated martensite: Why it forms and why it deforms easily
- 2011Modulated martensite: why it forms and why it deforms easilycitations
- 2010Artificial Single Variant Martensite in Freestanding Fe(70)Pd(30) Films Obtained by Coherent Epitaxial Growthcitations
- 2010Adaptive modulations of martensitescitations
- 2010The ferromagnetic shape memory system Fe-Pd-Cucitations
- 2010Correlation of phase transformations and magnetic properties in annealed epitaxial Fe-Pd magnetic shape memory alloy filmscitations
- 2008Magnetic properties of epitaxial Fe-Pd films measured at elevated temperaturescitations
- 2006Thermodynamics and kinetics during pulsed laser annealing and patterning of FePt filmscitations
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article
Thermodynamics and kinetics during pulsed laser annealing and patterning of FePt films
Abstract
<p>Laser annealing using 25 ns pulses of a KrF excimer laser was applied to electrochemical and pulsed laser deposited FePt films of 700 nm and 40 or 80 nm thicknesses, respectively. The dependence of phase formation and magnetization behavior on the film thickness and the as-deposited state are studied. Models of the film heating are compared to the experimentally observed results. Furthermore a time temperature transformation (TTT) diagram for the ordering of FePt is proposed, summarizing the phase formation in dependence on annealing time and temperature. In agreement with the TTT diagram, laser annealing leads to a disordering of L 10 -ordered films. By only partially disordering the L 10 phase, this approach provides control over the coercivity of hard magnetic FePt films. Local disordering is applied for magnetic patterning of the FePt films with dot patterns in the micrometer size range.</p>