PHYSICS:
Watching Rush Hour in the World of Electrons
Jan Zaanen
An improved imaging technique reveals that electrons in a material can suffer gridlock like cars in a city. This may help researchers understand the mechanism by which currents flow without resistance in superconductors.
The author is in the Department of Physics, University of Leiden, Leiden 2333, the Netherlands. E-mail: jan{at}lorentz.leidenuniv.nl