TU Darmstadt / ULB / TUbiblio

Element-resolved study on the evolution of magnetic response in FexN compounds

Chen, Yu-Chun and Gölden, Dominik and Dirba, Imants and Huang, Meng-Jie and Gutfleisch, Oliver and Nagel, Peter and Merz, Michael and Schuppler, Stefan and Schütz, Gisela and Alff, Lambert and Goering, Eberhard (2020):
Element-resolved study on the evolution of magnetic response in FexN compounds.
In: Journal of Magnetism and Magnetic Materials, 498, p. 166219. Elsevier, ISSN 03048853,
DOI: 10.1016/j.jmmm.2019.166219,
[Article]

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 and Gölden, Dominik and Dirba, Imants and Huang, Meng-Jie and Gutfleisch, Oliver and Nagel, Peter and Merz, Michael and Schuppler, Stefan and Schütz, Gisela and Alff, Lambert and Goering, Eberhard
Title: Element-resolved study on the evolution of magnetic response in FexN compounds
Language: English
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.

Journal or Publication Title: Journal of Magnetism and Magnetic Materials
Journal volume: 498
Publisher: Elsevier
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
DOI: 10.1016/j.jmmm.2019.166219
Official URL: https://www.sciencedirect.com/science/article/abs/pii/S03048...
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.
Export:
Suche nach Titel in: TUfind oder in Google
Send an inquiry Send an inquiry

Options (only for editors)
Show editorial Details Show editorial Details