Wigner crystallization in mesoscopic 2d electron systems.
Wigner crystallization of electrons in 2D quantum dots is reported. It proceeds in two stages: (i) via radial ordering of electrons on shells and (ii) freezing of the intershell rotation. The phase boundary of the crystal is computed in the whole temperature-density plane, and the influences of quantum effects and the particle number are analyzed.
Filinov
A V
AV
Fachbereich Physik, Universität Rostock Universitätsplatz 3, D-18051 Rostock, Germany.
Bonitz
M
M
Lozovik
Y E
YE