Abstract
The iron nitrides Fe3N, Fe4N and Fe8N (impure) have been prepared by treating iron in NH3/H2 gas mixtures followed by appropriate heat treatment. Fe8N has also been prepared by mechanical alloying. Mössbauer spectra are analysed in terms of iron sites with different nitrogen environments, and results are compared with magnetization measurements and band-structure calculations. Moments and hyperfine fields on sites with nitrogen neighbours are reduced by p-d hybridization, whereas the sites farthest from nitrogen have the lowest charge and the highest moments. There is no evidence of an exceptionally high magnetization in any of these compounds.
Similar content being viewed by others
References
P. Rochegude and J. Foct, Phys. Stat Sol. (a) 88(1985)137.
J.M.D. Coey, Phys. Scripta T39(1991)21.
Y. Sugita, K. Mitsuoka, M. Komuro, H. Hoshiya, Y. Kozono and M. Hanazono, J. Appl. Phys. 70(1991)587.
A. Sakuma, J. Magn. Magn. Mater. 102(1991)127.
R. Coehoorn, G.H.O. Daalderop and H.J.F. Jansen, Phys. Rev. B48(1993)3830.
C.M. Chen, N.K. Jaggl, J.B. Butt, E.B. Yeh and L.H. Schwartz, J. Phys. Chem. 87(1983)5326.
M.J. Clausser, Solid State Commun. 8(1970)781.
T. Koyano, E. Kita, A. Takasi, C.H. Lee, T. Fukunaga and U. Mitzutani,Proc. Int. Symp. on 3d Transition Metal Thin Films, Sendai, 1991, p. 65.
K. Nakajima, T. Yamashita, M. Takata and S. Okamoto, J. Appl. Phys. 70(1991)6033.
N.J. Decrisofaro, Ph.D. Thesis, MIT (1973).
T. Moriya, Y. Sumitomo, H. Ino, E. Fujita and Y. Maeda, J. Phys. Soc. Jpn. 35(1973)1378.
J.M.D. Coey, K. O'Donnell, Q.-N. Qi, E. Touchais and K.H. Jack, J. Phys. CM6(1994)L23.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Qi, Q., O'Donnell, K., Touchais, E. et al. Mössbauer spectra and magnetic properties of iron nitrides. Hyperfine Interact 94, 2067–2073 (1994). https://doi.org/10.1007/BF02063741
Issue Date:
DOI: https://doi.org/10.1007/BF02063741