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High-Precision Material Calculation Platform for Magnets: New Applications for Neodymium Magnets

Quemix has been developing high-precision material calculation methods for magnets and magnetic materials. Using the high-precision magnet material calculation method we are developing, we have succeeded in solving one of the mysteries of neodymium magnets and in proposing a new application for neodymium magnets.

"Dzyaloshinski-Moriya interaction in Nd2Fe14B as the origin of spin reorientation and rotating magnetocaloric effect," Hung Ba Tran, and Yu-ichiro Matsushita, arXiv:2207.10408 (2022).

Rare earth permanent magnets, especially neodymium magnets, are now indispensable to human life. In particular, Nd2 Fe14 B compound, the host material of neodymium magnets, is an indispensable component of high-performance motors and wind turbines, and plays an important role in the clean energy era of electric vehicles and renewable energy with zero emissions. In this study, we have revealed that the Dzyaloshinskii-Moriya interaction has a non-negligible effect on magnet properties at low temperatures. Dzyaloshinskii-Moriya interaction has been a neglected effect in magnet materials. We have discovered for the first time that the well-known spin reorientation phenomenon in the Nd2 Fe14B compound is due to the Dzyaloshinskii-Moriya interaction. We have also discovered that Nd2 Fe14B can be used as a refrigerant in cryogenic refrigerators by utilizing this spin reorientation phenomenon.

If you are interested in our high-precision magnet calculation platform, please feel free to contact us.


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