The quantum Hall effect, a fundamental effect in quantum mechanics, not only generates an electric but also a magnetic current. It arises from the motion of electrons on an orbit around the nuclei of ...

Diamond detection A sensor based on NV centres has been used to measure electrical currents in the heart of a rat. (Courtesy: iStock/Gizmo) A diamond-based sensor that maps out the subtle electrical ...

Measurement triangle: this quantum metrology triangle shows the relations between the three electrical units volt, ohm and ampere and the involved fundamental constants. Researchers at PTB are ...

Physicists have long relied on the idea that electrons behave like tiny particles zipping through materials, even though quantum physics says their exact position is fundamentally uncertain. Now, ...

A material cooled near absolute zero produced an electrical signal that physics said should not exist, revealing a new kind ...

Electron beam generated plasmas constitute a refined method for producing ionised gases, achieved by directing a high-energy electron beam into a neutral gas. The non-equilibrium ionisation caused by ...