Fe and N self-diffusion in non-magnetic Fe:N
M. Gupta, A. Gupta, R. Gupta, J. Stahn, M. Horisberger, A. Wildes
TL;DR
This study investigates Fe and N self-diffusion in non-magnetic FeN using neutron reflectivity, revealing that N diffuses slower than Fe despite Fe's larger atomic size, providing insights into atomic diffusion behaviors.
Contribution
It presents the first detailed neutron reflectivity analysis of Fe and N self-diffusion in non-magnetic FeN with isotope-labelled multilayers.
Findings
N diffusion is slower than Fe diffusion in FeN.
Atomic size does not directly correlate with diffusion rate.
Neutron reflectivity effectively measures atomic self-diffusion.
Abstract
Fe and N self-diffusion in non-magnetic FeN has been studied using neutron reflectivity. The isotope labelled multilayers, FeN/57Fe:N and Fe:N/Fe:15N were prepared using magnetron sputtering. It was remarkable to observe that N diffusion was slower compared to Fe while the atomic size of Fe is larger compared to N. An attempt has been made to understand the diffusion of Fe and N in non-magnetic Fe:N.
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