The liquid-solid transition of two-dimensional electrons with long-range Coulomb interaction was studied. It was shown how the Mott insulator at n=1, charge orders at 0<n<1, and the Wigner lattice at n→1 are connected. The PIRG result with quantum fluctuations taken in a correct way showed a rapid increase of rs for the transition when the commensurability becomes weak.
|ジャーナル||Physical Review Letters|
|出版ステータス||Published - 2002 10 21|
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