Magnetism of Tsai-Type Quasicrystal Approximants
Shintaro Suzuki, Asuka Ishikawa, Tsunetomo Yamada, Takanori Sugimoto, Akira Sakurai, Ryuji Tamura
Abstract
Magnetism of Tsai-type 1/1 approximants has been extensively investigated for the last decade. The experimental results on Tsai-type approximants are reviewed and the magnetic behaviors are classified and discussed in terms of the average electron-per-atom (e/a) ratio. The paramagnetic Curie-Weiss temperature Θp is found to oscillate in a universal manner as a function of the e/a ratio, and the magnetic order systematically changes with the variation in Θp. In addition, recent work shows that the 2/1 approximants also follow the trend observed for the 1/1 approximants, which implies that the magnetic phase diagram of the 1/1 approximants can be applicable to higher-order approximants including quasicrystals that are yet to be discovered.