XRD investigation of the nonideal structure of the GaAs(P)/GaAs superlattice

Marek Wojcik

doi:10.1117/12.156923

15 October 1993 XRD investigation of the nonideal structure of the GaAs(P)/GaAs superlattice

Marek Wojcik

Proceedings Volume 1845, Liquid and Solid State Crystals: Physics, Technology and Applications; (1993) https://doi.org/10.1117/12.156923
Event: Liquid and Solid State Crystals: Physics, Technology, and Applications, 1992, Zakopane, Poland

Abstract

The paper is devoted to a two dimensional x-ray diffraction study of non ideal (GaAs_{(1 - c})P_c)/(GaAs) superlattice showing the broadening of satellite reflections which lie on a line making a small constant angle with the [00L] reciprocal lattice rod containing the nodal reflection. This additional broadening is due to nonzero lateral gradient of the phosphorus concentration -- dc/dy -- which implies dividing crystal volume into coherent scattering domains (CSDs). A model of coherently diffracting domains with rectangular composition modulation waves that have a different amplitude and wavelength in each domain is presented.

Citation Download Citation

Marek Wojcik "XRD investigation of the nonideal structure of the GaAs(P)/GaAs superlattice", Proc. SPIE 1845, Liquid and Solid State Crystals: Physics, Technology and Applications, (15 October 1993); https://doi.org/10.1117/12.156923

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