TY - JOUR
T1 - Breakdown of a topological transition in two-dimensional spin-ice due to geometry effects
AU - Ferreyra, Maria Victoria
AU - Grigera, Santiago Andres
N1 - This work was supported by CONICET (Argentina), and by ANPCYT (Argentina) via grant PICT-2013-2004
PY - 2018/12
Y1 - 2018/12
N2 - 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.
AB - 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.
U2 - 10.1140/epjb/e2018-90390-3
DO - 10.1140/epjb/e2018-90390-3
M3 - Article
SN - 1434-6028
VL - 91
JO - The European Physical Journal B - Condensed Matter and Complex Systems
JF - The European Physical Journal B - Condensed Matter and Complex Systems
M1 - 307
ER -