Generic ordering of structural transitions in quasi-one-dimensional Wigner crystals
arXiv:1406.2598 · doi:10.1103/PhysRevB.90.094111
Abstract
We investigate the dependence of the structural phase transitions in an infinite quasi-one-dimensional system of repulsively interacting particles on the profile of the confining channel. Three different functional expressions for the confinement potential related to real experimental systems are used that can be tuned continuously from a parabolic to a hard-wall potential in order to find a thorough understanding of the ordering of the chain-like structure transitions. We resolve the longstanding issue why the most theories predicted a 1-2-4-3-4 sequence of chain configurations with increasing density, while some experiments found the 1-2-3-4 sequence.
arXiv comment7 pages, 5 figures
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- Dynamics of vortex defect formation in two dimensional Coulomb crystals
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- Chain-like transitions in Wigner crystals: Sequential or non-sequential?
- Finite-temperature Wigner solid and other phases of ripplonic polarons on a helium film