Abstract
X-ray diffraction is applied to determine the degree of order in partially ordered epitaxial layers of ZnSnP2 grown on GaAs. The Bragg-Williams order parameter, used as a scaling coefficient for the structure factor of superstructure reflections, is extracted from the comparison of measured and calculated relative intensities of a set of carefully chosen reflections. The calculated diffraction patterns are obtained from the dynamical theory of x-ray diffraction. The effect of antiphase domains on the width of superstructure reflections is discussed. Order parameters up to 30% were measured.
Original language | English |
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Pages (from-to) | 2017-2019 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 76 |
Issue number | 15 |
DOIs | |
State | Published - Apr 10 2000 |