Electrostatic Attraction of Coupled Wigner Crystals: Finite Temperature   Effects
  In this paper, we present a unified physical picture for the electrostatic attraction between two coupled planar Wigner crystals at finite (but below their melting) temperature. At very low temperatures, we find a new regime where the attraction, arising from the long-wavelength excitation of the plasmon mode, scales with the interplanar distance $d$ as $d^{-2}$. At higher temperatures, our calculation agrees with known results. Furthermore, we analyze the temperature dependence of the short-ranged attraction arising from ``structural'' correlations and argue that thermal fluctuations drastically reduce the strength of this attraction. 
A. W. C. Lau (1), P. Pincus (1), Dov Levine (2), and H.A. Fertig (3)   ((1) UCSB, (2) Technion, Israel, (3) U. of Kentucky, ...