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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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| Kočí, Jan | Prague |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ali, M. A. |
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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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Man, Ondřej
Brno University of Technology
in Cooperation with on an Cooperation-Score of 37%
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Publications (7/7 displayed)
- 2023Hematite $alpha$‐Fe$_{2}$O$_{3}$(0001) in top and side view : resolving long‐standing controversies about its surface structurecitations
- 2023Defect-driven antiferromagnetic domain walls in CuMnAs films
- 2022Defect-driven antiferromagnetic domain walls in CuMnAs filmscitations
- 2022Effect of Gd addition on the structural and magnetic properties of L1(0)-FePt alloy thin filmscitations
- 2022Effect of Gd addition on the structural and magnetic properties of L10-FePt alloy thin filmscitations
- 2020Microstructural changes during deformation of AISI 300 grade austenitic stainless steels: Impact of chemical heterogeneitycitations
- 2020Oxidation Performance of Cold Spray Ti-Al Barrier Coated gamma-TiAl Intermetallic Substrates ; Oxidační odolnost gamma-TiAl intermetalických substrátů s ochrannými vrstvami Ti-Al nanesenými technologií studené kinetizacecitations
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article
Effect of Gd addition on the structural and magnetic properties of L1(0)-FePt alloy thin films
Abstract
The impact of Gd addition on the structural and magnetic properties of L1(0)-FePt alloy thin films, which were sputter-deposited on MgO (001) substrates at 800 degrees C, was investigated. A rapid deterioration of L1(0) chemical ordering along with a strong amorphization effect is observed with addition of Gd. At more than 20 at. % Gd, additional crystalline phases occur. Due to the diminishing L1(0) chemical order, the perpendicular magnetic anisotropy (PMA) gets strongly reduced from about 3 down to 1 MJ/m(3) with addition of 14 at. % Gd. For higher Gd concentrations, the easy axis of magnetization turns fully in-plane due to dominating magnetic shape anisotropy. Furthermore, the saturation magnetization gets reduced with Gd addition due to the antiferromagnetic coupling between the Fe and Gd magnetic moments. Also, the Curie temperature can be lowered. Interestingly, with addition of Gd, a change in film morphology takes place, changing from an isolated island structure to a more continuous film morphology, which is of particular interest for samples with low Gd concentration as these films exhibit still strong PMA but rather low coercive fields. Published under an exclusive license by AIP Publishing.