On the growth of ammonium nitrate(III) crystals

L.J.P. Vogels, H.A.M. Marsman, M.A. Verheijen, P. Bennema, M. Elwenspoek

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    The growth rate of NH4NO3 phase III crystals is measured and interpreted using two models. The first is a standard crystal growth model based on a spiral growth mechanism, the second outlines the concept of kinetical roughening. As the crystal becomes rough a critical supersaturation can be determined and from this the step free energy. The step free energy versus temperature turns out to be well represented by a Kosterliz-Thouless type model. Further a phenomenological treatment of some peculiar growth observations is given.
    Original languageEnglish
    Pages (from-to)439-446
    Number of pages8
    JournalJournal of crystal growth
    Issue number3
    Publication statusPublished - Mar 1990


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