Numerical experiment on two-dimensional electron liquids. Thermodynamic properties and onset of short-range order
Thermodynamic properties of two-dimensional electron liquids are determined by numerical experiments over the domain of the plasma parameter epsilon = 2..pi..ne/sup 4//T/sup 2/, 0.05 < or = epsilon < or = 5 x 10/sup 3/, where n, e, and T denote the number density, the unit charge, and the temperature in energy units, respectively. The correlation energy thus obtained is consistent with both the result of the plasma-parameter expansion calculation and that of earlier numerical experiments in the high-density domain. The pair correlation function g(r) agrees with the analytical result when epsilon is small. Short-range order appears at the critical plasma parameter epsilon/sub sr/ in the range 10 < epsilon/sub sr/ < 15. It is pointed out that the two-dimensional screening function h(r) = ln(g(r) + 1) + e/sup 2//Tr is approximately a linear function of the radius r in the short-range domain, as in the case of three dimensions.
- Research Organization:
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113
- OSTI ID:
- 5165849
- Journal Information:
- Phys. Rev., A; (United States), Vol. 17:1
- Country of Publication:
- United States
- Language:
- English
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