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Evidence for giant magnetic moments in the metastable nitride α″Fe16N2 is reviewed, with reference to the related stable nitride γ′Fe4N and αFe. It is concluded from a survey of electronic structure calculations, Mössbauer spectra, and magnetization measurements on bulk multiphase samples that the average iron moment in α″Fe16N2 at T∼0 lies in the range 2.3–2.6 μB. A significantly larger moment of about 2.9 μB appears on the 4d sites which have no nitrogen neighbors.
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J. M. D. Coey (1994) studied this question.
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