Phase transitions  and steady-state  microstructures in a two-temperature lattice-gas model with mobile  active impurities

Jonas Rosager Henriksen; Mads Christian Sabra; Ole G. Mouritsen

doi:10.1103/PhysRevE.62.7070

Phase transitions and steady-state microstructures in a two-temperature lattice-gas model with mobile active impurities

Jonas Rosager Henriksen, Mads Christian Sabra, Ole G. Mouritsen

Department of Chemistry

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

The nonequilibrium, steady-state phase transitions and the structure of the different phases of a two-dimensional system with two thermodynamic temperatures are studied via a simple lattice-gas model with mobile active impurities ("hot/cold spots'') whose activity is controlled by an external drive. The properties of the model are calculated by Monte Carlo computer-simulation techniques. The two temperatures and the external drive on the system lead to a rich phase diagram including regions of microstructured phases in addition to macroscopically ordered (phase-separated) and disordered phases. Depending on the temperatures, microstructured phases of both lamellar and droplet symmetry arise, described by a length scale that is determined by the characteristic temperature controlling the diffusive motion of the active impurities.

Original language	English
Journal	Physical Review E. Statistical, Nonlinear, and Soft Matter Physics
Volume	62
Issue number	5
Pages (from-to)	7070-7076
ISSN	1063-651X
DOIs	https://doi.org/10.1103/PhysRevE.62.7070
Publication status	Published - 2000

Bibliographical note

Copyright (2000) American Physical Society

Keywords

LIPID-MEMBRANES
MONTE-CARLO
NONEQUILIBRIUM SYSTEMS
SEPARATION
REACTIVE BINARY-MIXTURES
MOLECULAR-DYNAMICS SIMULATIONS
SHAPE FLUCTUATIONS
2-TEMPERATURE
KINETIC ISING-MODEL
COMPETING DYNAMICS

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title = "Phase transitions and steady-state microstructures in a two-temperature lattice-gas model with mobile active impurities",

abstract = "The nonequilibrium, steady-state phase transitions and the structure of the different phases of a two-dimensional system with two thermodynamic temperatures are studied via a simple lattice-gas model with mobile active impurities ({"}hot/cold spots'') whose activity is controlled by an external drive. The properties of the model are calculated by Monte Carlo computer-simulation techniques. The two temperatures and the external drive on the system lead to a rich phase diagram including regions of microstructured phases in addition to macroscopically ordered (phase-separated) and disordered phases. Depending on the temperatures, microstructured phases of both lamellar and droplet symmetry arise, described by a length scale that is determined by the characteristic temperature controlling the diffusive motion of the active impurities.",

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author = "Henriksen, {Jonas Rosager} and Sabra, {Mads Christian} and Mouritsen, {Ole G.}",

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Phase transitions and steady-state microstructures in a two-temperature lattice-gas model with mobile active impurities. / Henriksen, Jonas Rosager; Sabra, Mads Christian; Mouritsen, Ole G.
In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, Vol. 62, No. 5, 2000, p. 7070-7076.

Research output: Contribution to journal › Journal article › Research › peer-review

TY - JOUR

T1 - Phase transitions and steady-state microstructures in a two-temperature lattice-gas model with mobile active impurities

AU - Henriksen, Jonas Rosager

AU - Sabra, Mads Christian

AU - Mouritsen, Ole G.

N1 - Copyright (2000) American Physical Society

PY - 2000

Y1 - 2000

N2 - The nonequilibrium, steady-state phase transitions and the structure of the different phases of a two-dimensional system with two thermodynamic temperatures are studied via a simple lattice-gas model with mobile active impurities ("hot/cold spots'') whose activity is controlled by an external drive. The properties of the model are calculated by Monte Carlo computer-simulation techniques. The two temperatures and the external drive on the system lead to a rich phase diagram including regions of microstructured phases in addition to macroscopically ordered (phase-separated) and disordered phases. Depending on the temperatures, microstructured phases of both lamellar and droplet symmetry arise, described by a length scale that is determined by the characteristic temperature controlling the diffusive motion of the active impurities.

AB - The nonequilibrium, steady-state phase transitions and the structure of the different phases of a two-dimensional system with two thermodynamic temperatures are studied via a simple lattice-gas model with mobile active impurities ("hot/cold spots'') whose activity is controlled by an external drive. The properties of the model are calculated by Monte Carlo computer-simulation techniques. The two temperatures and the external drive on the system lead to a rich phase diagram including regions of microstructured phases in addition to macroscopically ordered (phase-separated) and disordered phases. Depending on the temperatures, microstructured phases of both lamellar and droplet symmetry arise, described by a length scale that is determined by the characteristic temperature controlling the diffusive motion of the active impurities.

KW - LIPID-MEMBRANES

KW - MONTE-CARLO

KW - NONEQUILIBRIUM SYSTEMS

KW - SEPARATION

KW - REACTIVE BINARY-MIXTURES

KW - MOLECULAR-DYNAMICS SIMULATIONS

KW - SHAPE FLUCTUATIONS

KW - 2-TEMPERATURE

KW - KINETIC ISING-MODEL

KW - COMPETING DYNAMICS

U2 - 10.1103/PhysRevE.62.7070

DO - 10.1103/PhysRevE.62.7070

M3 - Journal article

SN - 1063-651X

VL - 62

SP - 7070

EP - 7076

JO - Physical Review E. Statistical, Nonlinear, and Soft Matter Physics

JF - Physical Review E. Statistical, Nonlinear, and Soft Matter Physics

IS - 5

ER -