ferromagnets tagged posts

A density functional theory calculation showed the magnetic properties of a fluorinated sample of hexagonal boron nitride. This version is ferromagnetic, determined by how the fluorine atoms (red) attach to the boron and nitrogen matrix.
Credit: Ajayan Group/Rice University

Researchers turn common insulator, 2D hexagonal boron nitride, h-BN (white graphene) into a magnetic semiconductor. A little fluorine turns an insulating ceramic known as white graphene into a wide-bandgap semiconductor with magnetic properties. Rice University scientists said that could make the unique material suitable for electronics in extreme environments...

Schematic diagram of the experimental setup used to transfer energy between two circuits, developed by UAB researchers. Credit: Jordi Prat

Researchers have developed a system which efficiently transfers electrical energy between 2 separate circuits. The system, made with a shell of metamaterials which concentrates the magnetic field, could transmit energy efficiently enough to charge mobile devices without having to place them close to the charging base. Wireless charging of mobile devices is possibly one of the most desired technological milestones. Some devices can already be charged wirelessly by placing the mobile device on top of a charging base. The next step, charging devices without the need of taking them out of one’s pocket, might be just around the corner.

A new system can effic...