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 ...

Scientists at the University of Würzburg and the German national metrology institute (PTB) have carried out an experiment that realizes a new kind of quantum standard of resistance. It's based on the ...

The quantum anomalous Hall effect (QAHE) is one of the most important phenomena in condensed matter physics, holding significant promise in low-energy-dissipation electronics that could possibly ...

Proceedings of the National Academy of Sciences of the United States of America, Vol. 119, No. 34 (August 23, 2022), pp. 1-5 (5 pages) Phonons are known to generate a thermal Hall effect in certain ...