Abstract
We combine Creutz energy conservation with Kawasaki spin exchange to simulate the microcanonical dynamics of a system of interacting particles. Relaxation occurs via Glauber spin-flip activation using a self-consistent temperature. Heterogeneity in the dynamics comes from finite-size constraints on the spin exchange that yield a distribution of correlated regions. The simulation produces a high-frequency response that can be identified with the boson peak, and a lower-frequency peak that contains non-Debye relaxation and non-Arrhenius activation, similar to the primary response of supercooled liquids.
Original language | English (US) |
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Pages (from-to) | 400-404 |
Number of pages | 5 |
Journal | Physics Letters, Section A: General, Atomic and Solid State Physics |
Volume | 350 |
Issue number | 5-6 |
DOIs | |
State | Published - Feb 13 2006 |
Keywords
- Microcanonical ensemble
- Monte Carlo simulation
- Nanothermodynamics
- Supercooled liquids
ASJC Scopus subject areas
- General Physics and Astronomy