Short-range type critical behavior in spite of long-range interactions: the phase transition of a Coulomb system on a lattice

Details Short-range type critical behavior in spite of long-range interactions: the phase transition of a Coulomb system on a lattice Short-range type critical behavior in spite of long-range interactions: the phase transition of a Coulomb system on a lattice

2003-08-29

arxiv.org/abs/cond-mat/0309001v1

Physics

Condensed Matter

revtex-file + 6 figures -> 5 pages

Scientific paper

One- to three-dimensional hypercubic lattices half-filled with localized particles interacting via the long-range Coulomb potential are investigated numerically. The temperature dependences of specific heat, mean staggered occupation, and of a generalized susceptibility indicate order-disorder phase transitions in two- and three-dimensional systems. The critical properties, clarified by finite-size scaling analysis, are consistent with those of the Ising model with short-range interaction.

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