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

Yu Chun Chen; Dominik Gölden; Imants Dirba; Meng Jie Huang; Oliver Gutfleisch; Peter Nagel; Michael Merz; Stefan Schuppler; Gisela Schütz; Lambert Alff; Eberhard Goering

doi:10.1016/j.jmmm.2019.166219

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

Yu Chun Chen
, Dominik Gölden
, Imants Dirba
, Meng Jie Huang
, Oliver Gutfleisch
, Peter Nagel
, Michael Merz
, Stefan Schuppler
, Gisela Schütz
, Lambert Alff
, Eberhard Goering

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

A systematic XMCD analysis was performed to study the evolution of magnetic moments of overall Fe atoms in α′-Fe_xN thin films. It was found that the spin and orbital moments of overall Fe 3d shell of α′-Fe_xN increase gradually along c-axis with increasing nitrogen fraction. We showed that the magnetocrystalline anisotropy of α′-Fe_xN 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.

Original language	English
Article number	166219
Journal	Journal of Magnetism and Magnetic Materials
Volume	498
DOIs	https://doi.org/10.1016/j.jmmm.2019.166219
State	Published - 15 Mar 2020
Externally published	Yes

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@article{28e81364a38648f49efecf7c0d011767,

title = "Element-resolved study on the evolution of magnetic response in FexN compounds",

abstract = "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.",

author = "Chen, \{Yu Chun\} and Dominik G{\"o}lden and Imants Dirba and Huang, \{Meng Jie\} and Oliver Gutfleisch and Peter Nagel and Michael Merz and Stefan Schuppler and Gisela Sch{\"u}tz and Lambert Alff and Eberhard Goering",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2020",

month = mar,

day = "15",

doi = "10.1016/j.jmmm.2019.166219",

language = "English",

volume = "498",

journal = "Journal of Magnetism and Magnetic Materials",

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}

TY - JOUR

T1 - Element-resolved study on the evolution of magnetic response in FexN compounds

AU - Chen, Yu Chun

AU - Gölden, Dominik

AU - Dirba, Imants

AU - Huang, Meng Jie

AU - Gutfleisch, Oliver

AU - Nagel, Peter

AU - Merz, Michael

AU - Schuppler, Stefan

AU - Schütz, Gisela

AU - Alff, Lambert

AU - Goering, Eberhard

PY - 2020/3/15

Y1 - 2020/3/15

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/85075987860

U2 - 10.1016/j.jmmm.2019.166219

DO - 10.1016/j.jmmm.2019.166219

M3 - Article

AN - SCOPUS:85075987860

SN - 0304-8853

VL - 498

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

M1 - 166219

ER -

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

Abstract

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