K. Edagawa et al., High resolution transmission electron microscopy observation of thermally fluctuating phasons in decagonal Al-Cu-Co, PHYS REV L, 85(8), 2000, pp. 1674-1677
In situ high-temperature, high resolution transmission electron microscopy
(HRTEM) was performed on an Al-Cu-Co decagonal quasicrystal, to investigate
thermal fluctuation of phasons. A tiling pattern constructed from the HRTE
M image was analyzed in the framework of the strip-projection method. Trans
itions between two local tile arrangements were observed at high temperatur
e for the first time, and were shown to correspond to a thermal phason fluc
tuation.