Dynamical x-ray diffraction from an icosahedral quasicrystal

S. W. Kycia; A. I. Goldman; T. A. Lograsso; D. W. Delaney; D. Black; M. Sutton; E. Dufresne; R. Brüning; B. Rodricks

doi:10.1103/PhysRevB.48.3544

Rapid Communication

Dynamical x-ray diffraction from an icosahedral quasicrystal

S. W. Kycia, A. I. Goldman, T. A. Lograsso, D. W. Delaney, D. Black, M. Sutton, E. Dufresne, R. Brüning, and B. Rodricks

Phys. Rev. B 48, 3544(R) – Published 1 August 1993

Abstract

We present direct evidence of dynamical diffraction of x rays from a quasicrystal. High-resolution x-ray-diffraction measurements of the Al-Pd-Mn face-centered icosahedral quasicrystal were performed, revealing a mosaic full width at half maximum of less than 0.001°. In a second experiment, the anomalous transmission of x rays (the Borrmann effect) was observed. These measurements show that nearly perfect quasicrystals may be grown to centimeter-size dimensions allowing x-ray techniques based upon dynamical diffraction to be brought to bear on the analysis of icosahedral structures.