Eur. Phys. J. B 13, 21-30 (2000)
https://doi.org/10.1007/s100510050005

Diffuse scattering from dodecagonal quasicrystals

¹ Department of Physics, Wuhan University, Wuhan 430072, P.R. China
² Beijing Laboratory of Electron Microscopy, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, P.O. Box 2724, Beijing 100080, P.R. China

Corresponding author: ^a jlei@usa.net

Received: 7 December 1998
Revised: 12 March 1999
Published online: 15 January 2000

Abstract

General formulae for thermal diffuse scattering from quasicrystals are applied to the case of dodecagonal quasicrystals from corresponding elasticity theory. Contours of constant diffuse scattering intensity are illustrated. Unlike ordinary crystals, shapes of isointensity contours are much more complicated and vary even among the collinear Bragg spots. Diffuse scattering patterns in the plane perpendicular to a given zone axis are associated with corresponding specific elastic constants. Information about elastic constants can be extracted from quantitative analysis of diffuse scattering patterns.