Breakdown of a topological transition in two-dimensional spin-ice due to geometry effects
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We investigate the topological transition that takes place in spin-ice systems when a polarising field is applied along a principal axis. In particular, we analyse a two dimensional spin-ice model; we find that the topological transition is strongly affected by geometrical constraints in the shape of the sample, and that in the case where the dimension perpendicular to the field is much smaller than the longitudinal one, i.e. in the quasi-1D spin-ice-ladder limit, it splits into a series of first-order phase transitions characterised by sharp spikes in the specific heat and susceptibility.
Ferreyra , M V & Grigera , S A 2018 , ' Breakdown of a topological transition in two-dimensional spin-ice due to geometry effects ' , The European Physical Journal B - Condensed Matter and Complex Systems , vol. 91 , 307 . https://doi.org/10.1140/epjb/e2018-90390-3
The European Physical Journal B - Condensed Matter and Complex Systems
© The Author(s) 2018. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://doi.org/creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
DescriptionThis work was supported by CONICET (Argentina), and by ANPCYT (Argentina) via grant PICT-2013-2004
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