Abstract
A variant synthesis route has been developed using high pressure nitrogen gas, leading to a lower reaction temperature and time and a higher nitrogen content. Here we report on a structural and magnetic study of Ce 2Fe 17,N 3 and Nd 2Fe 17N 3 synthesized by this method. The compounds have been investigated by means of neutron powder diffraction at 2 and 300 K. The impact of nitrogen insertion on the iron and rare earth magnetic moments is discussed. Finally, enlightening comparisons are made with some iron nitrides (Fe 4N and Fe 16N 2). The refined site-dependent iron magnetic moments appear to vary significantly with the interatomic distances between iron and nitrogen.
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