Nothing is more emblematic of an electron than its negative charge. It’s the trait that determines how the particle behaves in electromagnetic environments, such as a wire’s electric field and Earth’s ...

A ‘hole’ arises due to a missing electron in the valence band, which normally participates in covalent bonding between atoms. The absence of an electron creates a local absence of a negative charge, ...

A single platinum nanoparticle observed by electron holography. (Courtesy: Murakami Lab, Kyushu University) How many electrical charges does a platinum nanoparticle have? Thanks to an improved ...

Ballistic transport occurs whenever electrons propagate without collisions deflecting their trajectory. It is normally observed in conductors with a negligible concentration of impurities, at low ...

Researchers demonstrated the direct counting of small electric charges in individual catalyst nanoparticles. Ultrahigh sensitivity and precision electron holography improved by the developed noise ...