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Two-dimensional Coulomb solid with interaction anisotropy
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DOI：10.1103/PhysRevB.81.153307.png)
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摘要
En 中文
Low-dimensional systems of interacting particles demonstrate a variety of fascinating macroscopic properties. Experimentally investigated examples include two-dimensional electron systems in semiconductors structures and Abrikosov vortex lattices in superconductors; these systems share notable features in common, such as low-symmetry host crystal interactions. These interactions can be described in terms of a general statistical model: as systems driven by Coulombic forces and anisotropic bond energy. Through molecular-dynamics simulation we find that the expected hexagonal order disappears even for a weak tetragonal anisotropy, giving rise to a tetragonal structure with a finite-length ordering allowing for determination of the critical anisotropy parameter for the phase transition.
Keyword:
WIGNER CRYSTAL
DYNAMICAL PROPERTIES
ORIENTATIONAL ORDER
ELECTRONS
SYSTEMS
SUPERCONDUCTORS
PHASES
期刊
IF:
3.7
论文数:
15.4W
被引数:
41.0W
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