Such electron vortices have now been made visible using a quantum magnetic field sensor with a high spatial resolution. Typically, transport phenomena are more easily detected at low temperatures.

The study of electron vortices is driven by a deeper understanding of fundamental particles, such as photons and electrons. In 1992, Allen and others discovered that light beams could carry ...

Researchers at ETH Zurich have, for the first time, made visible how electrons form vortices in a material at room temperature. Their experiment used a quantum sensing microscope with an extremely ...

Electron vortices are electron beams that carry orbital angular momentum, meaning the electrons move not only in their propagation direction but also rotate in a vortex-like manner.

To observe electrons flowing in vortices, the researchers first synthesized pure single crystals of WTe 2 and shaved off thin flakes of the material. They then used electron-beam lithography and ...

Such electron vortices have now been made visible using a quantum magnetic field sensor with a high spatial resolution. Typically, transport phenomena are more easily detected at low temperatures.

"Electron vortices are expected in theory, but there's been no direct proof, and seeing is believing," says Leonid Levitov, professor of physics at MIT. "Now we've seen it, ...

The vortices are usually best seen at extremely low temperatures but the device was good enough to spot them even at normal room temperature. Researchers had never seen these electron vortices in ...

This is a summary of: Aharon-Steinberg, A. et al. Direct observation of vortices in an electron fluid.Nature 607, 74–80 (2022).. The problem. Conventional wisdom holds that an electric current ...

Reporting in the scientific journal Science, researchers at ETH Zurich in the group of Christian Degen have now managed to directly detect electron vortices in graphene for the first time, using a ...

Initially, electron vortices were generated using spiral phase plates composed of spontaneously stacked graphite films to impart orbital angular momentum to incident electron beams. Scientists later ...

Such electron vortices have now been made visible using a quantum magnetic field sensor with a high spatial resolution. Typically, transport phenomena are more easily detected at low temperatures.