Element-resolved study on the evolution of magnetic response in FexN compounds
| Autor: | Michael Merz, Stefan Schuppler, Lambert Alff, Yu-Chun Chen, Gisela Schütz, Eberhard Goering, Oliver Gutfleisch, Dominik Gölden, I. Dirba, Meng-Jie Huang, Peter Nagel |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Condensed matter physics Magnetic moment Shell (structure) chemistry.chemical_element 02 engineering and technology Magnetic response 021001 nanoscience & nanotechnology Condensed Matter Physics Magnetocrystalline anisotropy 01 natural sciences Nitrogen Electronic Optical and Magnetic Materials chemistry 0103 physical sciences Thin film 0210 nano-technology Spin (physics) Anisotropy |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 498:166219 |
| ISSN: | 0304-8853 |
| DOI: | 10.1016/j.jmmm.2019.166219 |
| Popis: | A systematic XMCD analysis was performed to study the evolution of magnetic moments of overall Fe atoms in α′-FexN thin films. It was found that the spin and orbital moments of overall Fe 3d shell of α′-FexN increase gradually along c-axis with increasing nitrogen fraction. We showed that the magnetocrystalline anisotropy of α′-FexN compounds is associated with corresponding orbital anisotropy of Fe 3d shell. No clear p-d hybridization between Fe and N elements was discovered in the current experimental systems, suggesting that lattice expansion has a sufficient influence on magnetic performance of α′-Fe8N compounds. |
| Databáze: | OpenAIRE |
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