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. 2015 Sep 28;5:14555. doi: 10.1038/srep14555

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This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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The order parameter ζ calculated by the variational approach with rotational optimization shown in the X-Z plane for (a) s = 0.25, α_z = α_x = 0.02 and (b) s = 0.6, α_z = α_x = 0.1. The radius of the circle in the X-Z plane is determined by averaged displacements. The schematics in the X-Z plane shows the displacements with respect to the calculated ground states, which are pointed out by the arrows as well.