During ultrafast demagnetization of a magnetically ordered solid, angular momentum has to be transferred between the spins, electrons, and phonons in the system on femto- and picosecond timescales.

The phenomenon of ultrafast demagnetization 1, first discovered in 1996, resulting from excitation by an intense femtosecond infrared laser pulse, has been extensively investigated, yet its ...

Within the last few years, the first testing devices have been launched that allow practical demagnetization of transformers on-site. When a transformer is re-energized, an inrush current occurs that ...

In the study, a team led by Konstanz researchers investigated the demagnetization of nickel crystals using ultrafast electron diffraction—a highly precise measuring method in terms of time and ...

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

More information: Deeksha Gupta et al, Tuning ultrafast demagnetization with ultrashort spin polarized currents in multi-sublattice ferrimagnets, Nature Communications (2025). DOI: 10.1038/s41467 ...

Power-supply designers usually like flyback converters to operate in DCM (discontinuous-conduction mode) rather than in CCM (continuous-conduction mode). In DCM, the flyback converter is a first-order ...

An important consideration in electrical machine design is the demagnetization due to high currents and temperatures. Simulation accuracy is dependent on realistic material models. This paper ...