Polarised neutron diffraction study of nickel ferrite

Polarised neutrons have been used to solve the existing ambiguities in the chemical and magnetic structures of NiFe 2O 4. The results show conclusively that it has a completely inverted spinel structure with an oxygen parameter of 0.2573 ±0.0003. The observed magnetic moments at room temperature sho...

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Bibliographic Details
Published in:The Journal of physics and chemistry of solids 1969-01, Vol.30 (8), p.1941-1948
Main Authors: Youssef, S.I., Natera, M.G., Begum, R.J., Srinivasan, B.S., Murthy, N.S. Satya
Format: Article
Language:English
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Summary:Polarised neutrons have been used to solve the existing ambiguities in the chemical and magnetic structures of NiFe 2O 4. The results show conclusively that it has a completely inverted spinel structure with an oxygen parameter of 0.2573 ±0.0003. The observed magnetic moments at room temperature show that nickel ferrite exhibits the Neel ferrimagnetism with m( A)Fe = 4.86μ B, m( B)Fe = 4.73μ B and m( B)Ni = 2.22μ B leading to a net moment of 2.09μ B . The Debye-Waller temperature correction was determined with the constant B = 0.8 × 10 -16 cm 2.
ISSN:0022-3697
1879-2553
DOI:10.1016/0022-3697(69)90170-X