TY - JOUR
T1 - Monte Carlo simulation of supercooled liquids using a self-consistent local temperature
AU - Chamberlin, Ralph
AU - Stangel, Kurt J.
PY - 2006/2/13
Y1 - 2006/2/13
N2 - 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.
AB - 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.
KW - Microcanonical ensemble
KW - Monte Carlo simulation
KW - Nanothermodynamics
KW - Supercooled liquids
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U2 - 10.1016/j.physleta.2005.10.036
DO - 10.1016/j.physleta.2005.10.036
M3 - Article
AN - SCOPUS:31144437105
SN - 0375-9601
VL - 350
SP - 400
EP - 404
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 5-6
ER -