Diffuse neutron scattering of iron-doped nickel oxide

A. Hoser, M. Martin, W. Schweika, A. E. Carlsson, R. Caudron, N. Pyka

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Abstract

We have investigated the equilibrium defect structure of single crystalline nonstoichiometric iron doped nickel oxide, (Ni1-xFex)1-σO (x=0.06), at high temperatures (1000-1250°C) and nonstoichiometries 0.004<σ<0.030 b y diffuse elastic neutron scattering. The observed characteristic diffuse intensity around G200 can be explained by tetrahedrally coordinated iron-interstit ials surrounded by four cation vacancies and their displacement fields. A similar pattern of the diffuse scattering was found in our previous study of wüstite, Fe1-σO (σ=0.054), indicating that Fe-doped nickel oxide may be regarded as " diluted wüstite".

Original languageEnglish
Pages (from-to)72-75
Number of pages4
JournalSolid State Ionics
Volume72
Issue numberPART 2
DOIs
StatePublished - Sep 1994

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