Novel phenomena in dilute electron systems in two dimensions.
For the past two decades, all two-dimensional systems of electrons were believed to be insulating in the limit of zero temperature. Recent experiments provide evidence for an unexpected transition to a conducting phase at very low electron densities. The nature of this phase is not understood and is currently the focus of intense theoretical and experimental attention.
Sarachik
M P
MP
Physics Department, City College of the City University of New York, New York, NY 10031, USA.
Kravchenko
S V
SV