Abstract: Irreversible demagnetization of permanent magnets (PM) in PM synchronous motors (PMSM) degrades the performance and efficiency of the machine and drive system. Demagnetizing MMF applied to ...

Abstract: Even under open-circuit, Halbach permanent magnet (PM) machines may partially suffer from an irreversible demagnetization issue. In this paper, the relationship between PM segment number per ...

Get Instant Summarized Text (Gist) Ultrafast spin-polarized current pulses were directly characterized in magnetic layer systems by measuring demagnetization dynamics within hundreds of ...

Tuning ultrafast demagnetization with ultrashort spin polarized currents in multi-sublattice ferrimagnets. Nature Communications , 2025; 16 (1) DOI: 10.1038/s41467-025-58411-3 Cite This Page : ...