Thermal phason fluctuation in an Al–Cu–Co decagonal quasicrystal

Successive phase transformation in ferromagnetic shape memory alloy Co 37 Ni 34 Al 29 melt-spun ribbons

“…The increase in FWHM reveals an order-disorder transformation, which was found in Al-Ni-Co and Al-Cu-Co decagonal quasicrystals. [12,13] The strain is induced by the thermally activated random phason, and the peak broadening is caused by the random phason. The population of phason-like atomic flipping increases with temperature increasing.…”