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arXiv · 1102.5303

Formation of defects in multirow Wigner crystals

Alexios D. Klironomos·Julia S. Meyer
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Abstract

We study the structural properties of a quasi-one-dimensional classical Wigner crystal, confined in the transverse direction by a parabolic potential. With increasing density, the one-dimensional crystal first splits into a zigzag crystal before progressively more rows appear. While up to four rows the ground state possesses a regular structure, five-row crystals exhibit defects in a certain density regime. We identify two phases with different types of defects. Furthermore, using a simplified model, we show that beyond nine rows no stable regular structures exist.

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Alexios D. Klironomos, Julia S. Meyer. 2011-02-25. Formation of defects in multirow Wigner crystals. https://doi.org/10.1103/physrevb.84.024117

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