Institute for Superconducting and Electronic Materials (ISEM) has addressed a 40-year-old quantum puzzle, unlocking a new ...

Scientists from TU Delft (The Netherlands) have observed quantum spin currents in graphene for the first time without using ...

In the natural world, many things come in mirror-image pairs. Your left and right hands are a perfect example—they look alike ...

Researchers have achieved a major breakthrough by generating quantum spin currents in graphene—without relying on bulky ...

Dec. 17, 2024 — 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 ...

The quantum Hall effect is observed when the resistance of a two-dimensional gas of electrons is measured in a magnetic field. In 1980 Klaus von Klitzing discovered that the resistance of the gas is ...

First discovered in the 1980s, quantum Hall fluids are composed of clouds of electrons floating in magnetic fields. In a classical system, the electrons would repel each other and form a crystal.

The room temperature quantum Hall effect was discovered independently in the two high field labs, in the 45-tesla Hybrid magnet in Tallahassee and in a 33-tesla resistive magnet in Nijmegen.

The phenomenon of the fractional quantum Hall effect (FQHE), which involves strong Coulomb interactions and correlations among electrons, leads to quasiparticles with a fractional elementary charge.

Collective electron excitations break down quantum Hall effect in graphene. Narrow “window” of temperatures and magnetic fields. Using measurements of resistance versus applied gate voltage at ...