Free electrons can be used to generate light by ... channelling radiation' from an electron beam passing through a hole in the crystal (see, for example, ref. 4). More recently, researchers ...

By twisting layers of graphene, researchers discovered a unique electronic crystal where electrons freeze in place yet allow ...

Supermassive black holes are theorized to get so big through ... The disappearance of free electrons meant that photons, the fundamental particles of light, were no longer endlessly bounced ...

Instead, it is free to move inside the silicon structure ... This creates an area around the junction, called the depletion zone, in which the electrons fill the holes (Fig. 1, closeup). When all the ...