Tag Archive for 'Magnetization'

Earth’s magnetic field lines. Image credit: NASA’s Goddard Space Flight Center.

Earliest Evidence of Earth’s Magnetic Field Found in Greenland

Apr 25, 2024 by News Staff

Recovering ancient records of Earth’s magnetic field is challenging because the magnetization in rocks is often reset by heating during tectonic burial...

Structure of SOT spin-LED: controlling the intensity of emitted light and charge current is the basis of transferring and processing information; by contrast, robust information storage and magnetic random-access memories are implemented using the spin of the carrier and the associated magnetization in ferromagnets; the missing link between the respective disciplines of photonics, electronics and spintronics is to modulate the circular polarization of the emitted light, rather than its intensity, by electrically controlled magnetization; Dainone et al. demonstrated that this missing link is established at room temperature and zero applied magnetic field in light-emitting diodes through the transfer of angular momentum between photons, electrons and ferromagnets. Image credit: Dainone et al., doi: 10.1038/s41586-024-07125-5.

Physicists Transfer Electron Spin to Photons

Mar 28, 2024 by News Staff

A team of physicists led by Dr. Yuan Lu from the Université de Lorraine’s Institut Jean Lamour has used electrical pulses to manipulate magnetic information...

The new metamaterial is formed by randomly oriented bi-material nanocylinders in a host medium. Image credit: Ihar Faniayeu / Aalto University.

Researchers One Step Closer to True One-Way Glass

Feb 14, 2024 by News Staff

Scientists at Aalto University have proposed a three-dimensional metamaterial with an isotropic effect in the visible spectral range. The new metamaterial...