Longe-Range Order in beta-Brass Studied by Neutron Diffraction

Ole Rathmann, Jens Aage Als-Nielsen

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    Abstract

    The long-range order, M(T), in β-brass has been measured by neutron diffraction from a small extinction-free crystal. The results agree with those obtained recently by x-ray diffraction. Near Tc our data are in accordance with a power law M(T)=D(1-T/Tc)β with the critical exponent β=0.293 as predicted by the nearest-neighbor (nn) Ising model. However, our data give an amplitude D=1.64 which is 10% higher than the nn Ising-model value.
    Original languageEnglish
    JournalPhysical Review B
    Volume9
    Issue number9
    Pages (from-to)3921-3926
    ISSN2469-9950
    DOIs
    Publication statusPublished - 1974

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