Magnetism of Tsai-Type Quasicrystal Approximants

• Published in: MATERIALS TRANSACTIONS Vol. 62; no. 3; pp. 298 - 306
• Main Authors: Suzuki, Shintaro, Ishikawa, Asuka, Yamada, Tsunetomo, Sugimoto, Takanori, Sakurai, Akira, Tamura, Ryuji
• Format: Journal Article
• Language: English
• Published: Sendai The Japan Institute of Metals and Materials 01-03-2021; Japan Science and Technology Agency
• Subjects: Curie temperature; hypermaterials; Magnetism; Phase diagrams; Quasicrystals; Tsai-type approximants
• ISSN: 1345-9678; 1347-5320
• DOI: 10.2320/matertrans.MT-MB2020014

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.