Influence of Nanocrystallite Size on Magnetic Properties of Iron Nitride γ’-Fe4N
In this paper, samples of nanocrystalline iron nitride γ’-Fe4N, doped with small amounts of hardly reducible promoter oxides (Al2O3, CaO, and K2O), were subjected to electron magnetic resonance (EMR) measurements. The samples differed in the average nanocrystallite size of iron nitride (23–54 nm). The EMR analysis was performed to probe the magnetic characteristics of the nanoparticles. The spectra, fitted with a Voigt function, were deconvoluted into contributions from the γ’-Fe4N phase in the nanoparticle core and from surface-associated iron ions. The resulting magnetic responses were quantitatively correlated with nanoparticle size, elucidating finite-size effects governing the system’s magnetic behavior.
Authors
- Grzegorz Leniec (ORCID: https://orcid.org/0000-0002-7980-6992)
- Aleksander Guskos
- G. Żołnierkiewicz (ORCID: https://orcid.org/0000-0003-0518-645X)
- Rafał Pelka (ORCID: https://orcid.org/0000-0002-0896-8839)
- Izabela Moszyńska
- Karol Synoradzki (ORCID: https://orcid.org/0000-0002-7732-3284)
- Urszula Nowosielecka
- Kamila Klimza (ORCID: https://orcid.org/0009-0007-0699-5773)
- N. Guskos
Institutions
- Silesian University of Technology (PL)
- West Pomeranian University of Technology in Szczecin (PL)
- Institute of Molecular Physics of the Polish Academy of Sciences (PL)
- Polish Academy of Sciences (PL)
Publication Details
- Journal
- Crystals
- Published
- 2025-11-05
- DOI
- https://doi.org/10.3390/cryst15110956
- Primary Topic
- Magnetic properties of thin films
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Narodowym Centrum Nauki
- Narodowe Centrum Badań i Rozwoju