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Phys. Rev. B 71, 073403 (2005) [4 pages]

Melting temperature of screened Wigner crystal on helium films by molecular dynamics

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J. A. R. da Cunha and Ladir Cândido
Instituto de Física, Universidade Federal de Goiás, Campus Samambaia, 74001-970 Goiânia, GO, Brazil

Received 14 October 2004; published 4 February 2005

Using molecular dynamics simulation, we have calculated the melting temperature of two-dimensional electron systems on 240–500 Å helium films supported by substrates of dielectric constants ϵs=2.2–11.9 at areal densities n varying from 3×109 to 1.3×1010 cm−2. Our results are in good agreement with the available theoretical and experimental results.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.71.073403
DOI:
10.1103/PhysRevB.71.073403
PACS:
73.21.−b, 64.70.Dv, 02.70.Ns, 64.60.Fr