35th CEMS Colloquium


Dr. Takashi Miyake (AIST)


17:30 - 18:30, January 27, 2016 (Wednesday)


Okochi-Hall, RIKEN


Strong Permanent Magnet


The current strongest permanent magnet is neodymium magnet, the main phase of which is Nd2Fe14B. Intensive investigation is ongoing to improve coactivity at high temperature. Design of new magnet compounds having large magnetization, strong magnetic anisotropy and high Curie temperature is another challenge. In the talk, I will start with introduction to rare-earth magnets, and mainly talk about NdFe12N, which has been synthesized recently as a film, and turned out to have large magnetization and anisotropy field superior to those of Nd2Fe14B. Magnetic properties and structural stability are discussed based on first-principles calculations.