Temperature Dependence of Short-Range Order in β-Brass

O.W. Dietrich, Jens Aage Als-Nielsen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Critical scattering of neutrons around the superlattice reflections (1, 0, 0) and (1, 1, 1) from a single crystal of beta-brass has been measured at temperatures from 2 to 25deg C above the transition temperature. The temperature dependence of the critical peak intensity, proportional to the susceptibility chi, and that of the inverse correlation range k 1 were, respectively, fitted to the power laws chiprop((T-Tc)/T)-gamma and k 1 = (k/a)times((T-Tc)/Tc)nu, yielding gamma = 1.25plusmn0.02, nu = 0.65plusmn0.02, and k = 3.0plusmn0.3. Here a is the cube edge of the unit cell. These results agree with the theoretical predictions of the Ising model.
    Original languageEnglish
    JournalPHYSICAL REVIEW
    Volume153
    Issue number3
    Pages (from-to)711-717
    ISSN0031-899X
    DOIs
    Publication statusPublished - 1967

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