Crystallographic features and state stability of the decagonal quasicrystal in the Al-Co-Cu alloy system

K. Nakayama, A. Mizutani, Y. Koyama

In the Al-Co-Cu alloy system, both the decagonal quasicrystal with the space group of $P\overline{10}m2$ and its approximant Al${}_{13}$Co${}_4$ phase with monoclinic $Cm$ symmetry are…