Chen, Yu-Chun ; Gölden, Dominik ; Dirba, Imants ; Huang, Meng-Jie ; Gutfleisch, Oliver ; Nagel, Peter ; Merz, Michael ; Schuppler, Stefan ; Schütz, Gisela ; Alff, Lambert ; Goering, Eberhard (2020)
Element-resolved study on the evolution of magnetic response in FexN compounds.
In: Journal of Magnetism and Magnetic Materials, 498
doi: 10.1016/j.jmmm.2019.166219
Article, Bibliographie
Abstract
A systematic XMCD analysis was performed to study the evolution of magnetic moments of overall Fe atoms in alpha'-FexN thin films. It was found that the spin and orbital moments of overall Fe 3d shell of alpha'-FexN increase gradually along c-axis with increasing nitrogen fraction. We showed that the magnetocrystalline anisotropy of alpha'-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 alpha'-Fe8N compounds.
| Item Type: | Article |
|---|---|
| Erschienen: | 2020 |
| Creators: | Chen, Yu-Chun ; Gölden, Dominik ; Dirba, Imants ; Huang, Meng-Jie ; Gutfleisch, Oliver ; Nagel, Peter ; Merz, Michael ; Schuppler, Stefan ; Schütz, Gisela ; Alff, Lambert ; Goering, Eberhard |
| Type of entry: | Bibliographie |
| Title: | Element-resolved study on the evolution of magnetic response in FexN compounds |
| Language: | English |
| Date: | 15 March 2020 |
| Publisher: | Elsevier |
| Journal or Publication Title: | Journal of Magnetism and Magnetic Materials |
| Volume of the journal: | 498 |
| DOI: | 10.1016/j.jmmm.2019.166219 |
| URL / URN: | https://www.sciencedirect.com/science/article/abs/pii/S03048... |
| Abstract: | A systematic XMCD analysis was performed to study the evolution of magnetic moments of overall Fe atoms in alpha'-FexN thin films. It was found that the spin and orbital moments of overall Fe 3d shell of alpha'-FexN increase gradually along c-axis with increasing nitrogen fraction. We showed that the magnetocrystalline anisotropy of alpha'-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 alpha'-Fe8N compounds. |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences > Material Science > Advanced Thin Film Technology 11 Department of Materials and Earth Sciences > Material Science > Functional Materials |
| Date Deposited: | 06 Jan 2020 08:37 |
| Last Modified: | 24 Aug 2020 07:18 |
| PPN: | |
| Projects: | The authors gratefully acknowledge the support of the Deutsche Forschungsgemeinschaft for the project HPPMSNG and German federal state of Hessen for the program LOEWE RESPONSE, respectively., We also thank the synchrotron light source KARA and the KNMF, both located in Karlsruhe (Germany), for the provision of XMCD beamtime. |
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