Effect of Gd addition on the structural and magnetic properties of L1(0)-FePt alloy thin films

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F22%3APU147334" target="_blank" >RIV/00216305:26620/22:PU147334 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/22:00128349
Result on the web
<a href="https://aip.scitation.org/doi/10.1063/5.0124652" target="_blank" >https://aip.scitation.org/doi/10.1063/5.0124652</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0124652" target="_blank" >10.1063/5.0124652</a>

Result language
angličtina
Original language name
Effect of Gd addition on the structural and magnetic properties of L1(0)-FePt alloy thin films
Original language description
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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10300 - Physical sciences

Project
<a href="/en/project/LM2018110" target="_blank" >LM2018110: CzechNanoLab research infrastructure</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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