Ice rule fragility via topological charge transfer in artificial colloidal ice
Abstract
Artificial particle ices are model systems of constrained, interacting particles. They have been introduced theoretically to study ice-manifolds emergent from frustration, along with domain wall and grain boundary dynamics, doping, pinning-depinning, controlled transport of topological defects, avalanches, and memory effects. Recently such particle-based ices have been experimentally realized with vortices in nano-patterned superconductors or gravitationally trapped colloids. Here we demonstrate that, although these ices are generally considered equivalent to magnetic spin ices, they can access a novel spectrum of phenomenologies that are inaccessible to the latter. With experiments, theory and simulations we demonstrate that in mixed coordination geometries, entropy-driven negative monopoles spontaneously appear at a density determined by the vertex-mixture ratio. Unlike its spin-based analogue, the colloidal system displays a “fragile ice” manifold, where local energetics oppose the ice rule, which is instead enforced through conservation of the global topological charge. The fragile colloidal ice, stabilized by topology, can be spontaneously broken by topological charge transfer.
- Authors:
-
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Babeş-Bolyai University, Cluj (Romania)
- Universitat de Barcelona (Spain)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Laboratory Directed Research and Development (LDRD) Program
- OSTI Identifier:
- 1479943
- Report Number(s):
- LA-UR-18-29641
Journal ID: ISSN 2041-1723
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 9; Journal Issue: 1; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Material Science
Citation Formats
Libál, András, Lee, Dong Yun, Ortiz-Ambriz, Antonio, Reichhardt, Charles, Reichhardt, Cynthia J. O., Tierno, Pietro, and Nisoli, Cristiano. Ice rule fragility via topological charge transfer in artificial colloidal ice. United States: N. p., 2018.
Web. doi:10.1038/s41467-018-06631-1.
Libál, András, Lee, Dong Yun, Ortiz-Ambriz, Antonio, Reichhardt, Charles, Reichhardt, Cynthia J. O., Tierno, Pietro, & Nisoli, Cristiano. Ice rule fragility via topological charge transfer in artificial colloidal ice. United States. https://doi.org/10.1038/s41467-018-06631-1
Libál, András, Lee, Dong Yun, Ortiz-Ambriz, Antonio, Reichhardt, Charles, Reichhardt, Cynthia J. O., Tierno, Pietro, and Nisoli, Cristiano. 2018.
"Ice rule fragility via topological charge transfer in artificial colloidal ice". United States. https://doi.org/10.1038/s41467-018-06631-1. https://www.osti.gov/servlets/purl/1479943.
@article{osti_1479943,
title = {Ice rule fragility via topological charge transfer in artificial colloidal ice},
author = {Libál, András and Lee, Dong Yun and Ortiz-Ambriz, Antonio and Reichhardt, Charles and Reichhardt, Cynthia J. O. and Tierno, Pietro and Nisoli, Cristiano},
abstractNote = {Artificial particle ices are model systems of constrained, interacting particles. They have been introduced theoretically to study ice-manifolds emergent from frustration, along with domain wall and grain boundary dynamics, doping, pinning-depinning, controlled transport of topological defects, avalanches, and memory effects. Recently such particle-based ices have been experimentally realized with vortices in nano-patterned superconductors or gravitationally trapped colloids. Here we demonstrate that, although these ices are generally considered equivalent to magnetic spin ices, they can access a novel spectrum of phenomenologies that are inaccessible to the latter. With experiments, theory and simulations we demonstrate that in mixed coordination geometries, entropy-driven negative monopoles spontaneously appear at a density determined by the vertex-mixture ratio. Unlike its spin-based analogue, the colloidal system displays a “fragile ice” manifold, where local energetics oppose the ice rule, which is instead enforced through conservation of the global topological charge. The fragile colloidal ice, stabilized by topology, can be spontaneously broken by topological charge transfer.},
doi = {10.1038/s41467-018-06631-1},
url = {https://www.osti.gov/biblio/1479943},
journal = {Nature Communications},
issn = {2041-1723},
number = 1,
volume = 9,
place = {United States},
year = {Mon Oct 08 00:00:00 EDT 2018},
month = {Mon Oct 08 00:00:00 EDT 2018}
}
Web of Science
Figures / Tables:
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