Mössbauer study of gamma‴-iron nitride film
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A single-phase γ‴-FeN film with the rock-salt structure was produced by pulsed laser deposition of Fe onto an Al substrate in a N2 atmosphere. Its Mössbauer spectra and powder X-ray diffraction patterns were measured. γ‴-FeN was found to be antiferromagnetic exhibiting a hyperfine magnetic field of 30 T at a temperature of 5 K. It was found to have a Néel temperature of 220 K. A minor component with a higher hyperfine magnetic field of 49 T at 5 K was also observed. It is thought to originate from defects in γ‴-FeN.
KeywordsIron nitride film γ‴-FeN Pulsed laser deposition Mössbauer spectroscopy Néel temperature
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- 8.Blaha, P., Schwarz, K., Madsen, G., Kvasnicka, D., Luitz, J.: WIEN2K. Technical University of Vienna, Vienna (2001)Google Scholar