Revealing antiphase-domain dynamics in alloys by combining advanced statistical techniques with x-ray photon correlation spectroscopy

Lorenz-Mathias Stadler, Bogdan Sepiol, Jan W. Kantelhardt, Ivo Zizak, Gerhard Grübel, Gero Vogl

    Veröffentlichungen: Beitrag in FachzeitschriftArtikelPeer Reviewed

    Abstract

    The dynamics of antiphase-boundary motion is investigated by the emerging method of x-ray photon correlation spectroscopy. Time correlations of intensity fluctuations from the fundamental (110) and from the superstructure (100) reflection of the B2-ordered Co60Ga40 intermetallic phase are analyzed. By applying detrended fluctuation analysis the observed correlation behavior can be unambiguously attributed to dynamics of antiphase domains. From the temperature dependence an activation energy for this dynamics is derived-in good agreement with results from Monte Carlo simulations. The study underlines the potential of the method for investigations of slow dynamics in hard-condensed matter.
    OriginalspracheEnglisch
    Aufsatznummer224301
    Seitenumfang7
    FachzeitschriftPhysical Review B
    Jahrgang69
    Ausgabenummer22
    DOIs
    PublikationsstatusVeröffentlicht - 2004

    ÖFOS 2012

    • 1030 Physik, Astronomie

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