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Crystallite size in thin films

  1. Aug 13, 2011 #1
    Hi, just a question for about a doubt I have regarding the xrd analysis, maybe too trivial for experts....I have estimated the crystallite size in a thin films (my films have 100nm thickness), using rietveld refinement programs. I have always thought that in this way I estimated the size of the grains on the plane, on which I have the main average choerence.
    In fact I have found results of about 1500Angstroms.
    Is this correct? if the this value refers to the z direction, it should be wrong because higher than the film thickness...so how can I find the size of the crystallites along the direction normal to the sample? Thank you, Wunter.
     
  2. jcsd
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