Glassy dynamics and equilibrium state on the honeycomb lattice: Role of surface diffusion and desorption on surface crowding

被引:6
作者
Darjani, Shaghayegh [1 ,2 ,3 ]
Koplik, Joel [3 ,4 ]
Pauchard, Vincent [1 ,2 ]
Banerjee, Sanjoy [1 ,2 ]
机构
[1] CUNY City Coll, Energy Inst, New York, NY 10031 USA
[2] CUNY City Coll, Dept Chem Engn, New York, NY 10031 USA
[3] CUNY City Coll, Benjamin Levich Inst, New York, NY 10031 USA
[4] CUNY City Coll, Dept Phys, New York, NY 10031 USA
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevE.103.022801
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
The phase behavior and adsorption kinetics of hard-core particles on a honeycomb lattice are studied by means of random sequential adsorption with surface diffusion. We concentrate on reversible adsorption by introducing a desorption process into our previous model and varying the equilibrium rate constant as a control parameter. We find that an exact prediction of the temporal evolution of fractional surface coverage and the surface pressure dynamics of reversible adsorption can be achieved by use of the blocking function of a system with irreversible adsorption of highly mobile particles. For systems out of equilibrium we observe several features of glassy dynamics, such as slow relaxation dynamics, the memory effect, and aging. In particular, the analysis of our system in the limit of small desorption probability shows simple aging behavior with a power-law decay. A detailed discussion of Gibbs adsorption isotherm for nonequilibrium adsorption is given, which exhibits a hysteresis between this system and its equilibrium counterpart.
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页数:10
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