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Issue 13, 2020
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Commensurate states and pattern switching via liquid crystal skyrmions trapped in a square lattice

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Abstract

Using continuum based simulations we show that a rich variety of skyrmion liquid crystal states can be realized in the presence of a periodic obstacle array. As a function of the number of skyrmions per obstacle we find hexagonal, square, dimer, trimer and quadrimer ordering, where the n-mer structures are a realization of a molecular crystal state of skyrmions. As a function of external field and obstacle radius we show that there are transitions between the different crystalline states as well as mixed and disordered structures. We discuss how these states are related to commensurate effects seen in other systems, such as vortices in type-II superconductors and colloids interacting with two dimensional substrates.

Graphical abstract: Commensurate states and pattern switching via liquid crystal skyrmions trapped in a square lattice

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Article information


Submitted
22 Nov 2019
Accepted
06 Mar 2020
First published
10 Mar 2020

Soft Matter, 2020,16, 3338-3343
Article type
Paper

Commensurate states and pattern switching via liquid crystal skyrmions trapped in a square lattice

A. Duzgun, C. Nisoli, C. J. O. Reichhardt and C. Reichhardt, Soft Matter, 2020, 16, 3338
DOI: 10.1039/C9SM02312G

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