A new superlattice structure in the Al2.75Ir and Al2.63Rh 1/0 approximants

13th International Conference on Quasicrystals

Nishimoto, Kazue^1 ; Yamaguchi, Natsumi^2 ; Tamura, Ryuji^2

Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1, Katahira, Sendai-shi, Miyagi

980-8577, Japan^1

Department of Materials Science and Technology, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo

125-8585, Japan^2

关键词: Approximants;    Monoclinic lattices;    Space Groups;    Super-lattice structures;    X-ray diffraction method;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/809/1/012010/pdf
DOI  :  10.1088/1742-6596/809/1/012010

来源: IOP

【 摘 要 】

We investigate the superstructure of binary Al2.75Ir and Al2.63Rh 1/0 approximants by X-ray diffraction method and transmission electron microscopy. Al2.75Ir possesses a 2a 2a 2a C-centred monoclinic lattice with space group C2 or Cm or C2/m. Al2.63Rh possesses a 2a 2a 2a face centred lattice with space group F23 or Fm3.