Finite electron crystallites in strong magnetic fields: Precursors of a supersolid?

Li, Yuesong; Yannouleas, Constantine; Landman, Uzi

Finite electron crystallites in strong magnetic fields: Precursors of a supersolid?

Authors

Li, Yuesong

Yannouleas, Constantine

Landman, Uzi

Description

We show that a supersolid phase, exhibiting simultaneously solid and superfluid behavior, properly describes the finite electron crystallites that form in two-dimensional quantum dots under high magnetic fields. These crystallites rotate already in their ground state and exhibit a nonclassical rotational inertia. They are precursors to a supersolid crystal in the lowest Landau level. We use exact numerical diagonalization, calculations employing analytic many-body wave functions, and a newly derived analytic expression for the total energies that permits calculations for arbitrary number of electrons.
Corrected typos in Table I. Revtex4. 5 pages with 3 postscript figures and one table. For related papers, see http://www.prism.gatech.edu/~ph274cy/