35th CEMS Colloquium

講演者

三宅隆 (産業技術総合研究所主任研究員)

日程

2016年1月27日(水) 17:30～18:30

開催場所

理化学研究所　大河内記念ホール

講演タイトル

Strong Permanent Magnet

講演概要

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.