Study of Local Atomic Order in a Ternary Cu_<0.47>Ni_<0.29>Zn_<0.24> Alloy Using Anomalous Scattering of Synchrotron Radiation

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This paper describes the results of the first application of anomalous scatteringphenomenon to reveal the local atomic arrangements in multi-component systems.Diffuse scattering from a single crystal of the title alloy has been measured usingmonochromated synchrotron radiation of the various wavelengths in the closevicinity of the K absorption edges of the constituent elements. From the variationof contrast produced in the total diffuse intensity, partial diffuse intensities cor-responding to the three kinds of interatomic correlation have been derived byadopting a least-squares fitting method. It is shown that short-range orderingoccurs between Ni and Zn atoms and also between Zn and Cu atoms, while acorrelation of the opposite sense exists between Cu and Ni atoms. This type ofshort-range ordering is consistent with the prediction of ordering energies given byDe Rooy et at.
社団法人日本物理学会の論文
1985-10-15