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Title: Inner Phases of Colloidal Hexagonal Spin Ice

Using numerical simulations that mimic recent experiments on hexagonal colloidal ice, here we show that colloidal hexagonal artificial spin ice exhibits an inner phase within its ice state that has not been observed previously. Under increasing colloid-colloid repulsion, the initially paramagnetic system crosses into a disordered ice regime, then forms a topologically charge ordered state with disordered colloids, and finally reaches a threefold degenerate, ordered ferromagnetic state. This is reminiscent of, yet distinct from, the inner phases of the magnetic kagome spin ice analog. Finally, the difference in the inner phases of the two systems is explained by their difference in energetics and frustration.
Authors:
 [1] ;  [2] ;  [2] ;  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Babeş-Bolyai Univ., Cluj (Romania). Mathematics and Computer Science Dept.
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Report Number(s):
LA-UR-18-29684
Journal ID: ISSN 0031-9007
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 120; Journal Issue: 2; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; phase transitions; spin ice; colloids
OSTI Identifier:
1480011
Alternate Identifier(s):
OSTI ID: 1416838

Libál, A., Nisoli, C., Reichhardt, C. J. O., and Reichhardt, C.. Inner Phases of Colloidal Hexagonal Spin Ice. United States: N. p., Web. doi:10.1103/PhysRevLett.120.027204.
Libál, A., Nisoli, C., Reichhardt, C. J. O., & Reichhardt, C.. Inner Phases of Colloidal Hexagonal Spin Ice. United States. doi:10.1103/PhysRevLett.120.027204.
Libál, A., Nisoli, C., Reichhardt, C. J. O., and Reichhardt, C.. 2018. "Inner Phases of Colloidal Hexagonal Spin Ice". United States. doi:10.1103/PhysRevLett.120.027204.
@article{osti_1480011,
title = {Inner Phases of Colloidal Hexagonal Spin Ice},
author = {Libál, A. and Nisoli, C. and Reichhardt, C. J. O. and Reichhardt, C.},
abstractNote = {Using numerical simulations that mimic recent experiments on hexagonal colloidal ice, here we show that colloidal hexagonal artificial spin ice exhibits an inner phase within its ice state that has not been observed previously. Under increasing colloid-colloid repulsion, the initially paramagnetic system crosses into a disordered ice regime, then forms a topologically charge ordered state with disordered colloids, and finally reaches a threefold degenerate, ordered ferromagnetic state. This is reminiscent of, yet distinct from, the inner phases of the magnetic kagome spin ice analog. Finally, the difference in the inner phases of the two systems is explained by their difference in energetics and frustration.},
doi = {10.1103/PhysRevLett.120.027204},
journal = {Physical Review Letters},
number = 2,
volume = 120,
place = {United States},
year = {2018},
month = {1}
}

Works referenced in this record:

Freezing and thawing of artificial ice by thermal switching of geometric frustration in magnetic flux lattices
journal, August 2014
  • Trastoy, J.; Malnou, M.; Ulysse, C.
  • Nature Nanotechnology, Vol. 9, Issue 9, p. 710-715
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Thermal fluctuations in artificial spin ice
journal, June 2014
  • Kapaklis, Vassilios; Arnalds, Unnar B.; Farhan, Alan
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