The orbital angular momentum of electrons has long been considered a minor physical phenomenon, suppressed in most crystals and largely overlooked. Scientists have now discovered that in certain ...

Katherine Bourzac is a freelance journalist in San Francisco, California. For a little more than a century, chemists have known that strong atomic links called covalent bonds are formed when atoms ...

Excitonic pairing and fractional quantum Hall effect in quantum Hall bilayer. Credit: Naiyuan J. Zhang et al, Amid the many mysteries of quantum physics, subatomic particles don't always follow the ...