Issue |
EPL
Volume 95, Number 1, July 2011
|
|
---|---|---|
Article Number | 10004 | |
Number of page(s) | 5 | |
Section | General | |
DOI | https://doi.org/10.1209/0295-5075/95/10004 | |
Published online | 23 June 2011 |
Chimera order in spin systems
1
The Institute of Mathematical Sciences, CIT Campus - Taramani, Chennai 600113, India
2
Department of Physics, University of Calcutta - 92 Acharya Prafulla Chandra Road, Kolkata 700009, India
Received:
22
December
2010
Accepted:
20
May
2011
It has recently been shown that a population of oscillators having identical environments can exhibit a heterogeneous phase topology termed as chimera state. We extend this phenomenon to the broader perspective of order-disorder transitions in physical systems with discrete states. By an exact analytic treatment we show that chimera states can occur in a system of Ising spins in thermal equilibrium. We also numerically establish the existence of chimera ordering in 3-dimensional models of layered magnetic materials (such as manganites) suggesting possible means of experimentally observing it.
PACS: 05.45.-a – Nonlinear dynamics and chaos / 05.50.+q – Lattice theory and statistics (Ising, Potts, etc.) / 64.60.Cn – Order-disorder transformations
© EPLA, 2011
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