Disorder in decagonal quasicrystals: Diffuse scattering in decagonal Al-Ni-Fe

Frey, Friedrich und Weidner, Eveline (2004): Disorder in decagonal quasicrystals: Diffuse scattering in decagonal Al-Ni-Fe. In: Ferroelectrics, Bd. 305

Abstract

High resolution synchrotron x-ray data of near-Bragg diffuse scattering from decagonal Al71.5Ni23Fe5quasicrystals was recorded. A significant dependence on Qbotwas not observed, a dominant phasonic origin can thus be ruled out. An analysis in frame of a TDS theory gives an unlikely ratio of elastic constants c66/c11=4.0. Moreover, subsequent measurements up to 720 K do not reveal a pronounced intensity increase. Predictions of a theory of Huang diffuse scattering, however, nicely match the anisotropy of the measured data.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Geowissenschaften > Department für Geo- und Umweltwissenschaften > Kristallographie und Materialwissenschaft
• Themengebiete: 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften, Geologie
• Sprache: Englisch