Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/184900
Title: | Degeneracy and hysteresis in a bidisperse colloidal ice |
Author: | Rodríguez Gallo, Carolina Ortiz-Ambriz, Antonio Tierno, Pietro |
Keywords: | Col·loides Glaç Magnetisme Colloids Ice Magnetism |
Issue Date: | 8-Oct-2021 |
Publisher: | American Physical Society |
Abstract: | We use numerical simulations to investigate the low-energy states of a bidisperse colloidal ice, realized by confining two types of magnetic particles into double wells of different lengths. For this system, theoretical calculations predict a highly degenerate ground state where all the vertices with zero topological charge have equal energy. When raising the applied field, we find a re-entrant transition where the system passes from the initial disordered state to a low-energy one and then back to disorder for large interaction strengths. The transition is due to the particle localization on top of the central hill of the double wells, as revealed from the position distributions. When we decrease the applied field, the system displays hysteresis in the fraction of low-energy vertices, and a small return point memory by cycling the applied field. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevResearch.3.043023 |
It is part of: | Physical Review Research, 2021, vol. 3, num. 4, p. 043023 |
URI: | http://hdl.handle.net/2445/184900 |
Related resource: | https://doi.org/10.1103/PhysRevResearch.3.043023 |
ISSN: | 2643-1564 |
Appears in Collections: | Publicacions de projectes de recerca finançats per la UE Articles publicats en revistes (Institut de Recerca en Sistemes Complexos (UBICS)) Articles publicats en revistes (Física de la Matèria Condensada) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
719861.pdf | 2.01 MB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License