Abstract
A crystal model is proposed that is in good agreement with the experimental electron diffraction patterns and high-resolution electron-microscopy images of the icosahedral phase in Mn–Al and related systems. Structurally, the model has long-range periodic translational order with a large unit cell (space group Im {\bar3}) containing 10038 atoms as well as orientational order characterized by symmetry close to the m {\bar3\bar5} point group. Such a periodic structure can explain the origin of the crystallographically forbidden icosahedral symmetries. The icosahedral phase may thus be considered as a complex cubic crystal.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Acta Crystallographica Section A Foundations of Crystallography
Paper Title
Journal
Date
