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Title: Mass transport of adsorbates near a discontinuous structural phase transition
Authors: Granato, E.
Ying, S.C.
Elder, Ken R.
Ala-Nissila, Tapio
Issue Date: 2016
Publisher: © American Physical Society
Citation: GRANATO, E. ...et al., 2016. Mass transport of adsorbates near a discontinuous structural phase transition. Physical Review B, 94: 235412.
Abstract: © 2016 American Physical Society. We study the mass transport dynamics of an adsorbed layer near a discontinuous incommensurate striped-honeycomb phase transition via numerical simulations of a coarse-grained model focusing on the motion of domain walls rather than individual atoms. Following an initial step profile created in the incommensurate striped phase, an intermediate hexagonal incommensurate phase nucleates and grows, leading to a bifurcation into two sharp profiles propagating in opposite directions as opposed to broad profiles induced by atomic diffusive motion. Our results are in agreement with recent numerical simulations of a microscopic model as well as experimental observations for the Pb/Si(111) adsorbate system.
Description: This paper was accepted for publication in the journal Physical Review B and the definitive published version is available at https://doi.org/10.1103/PhysRevB.94.235412
Sponsor: This work was supported by Sao Paulo Research Foundation (FAPESP, Grant No. 2014/15372-3) (E.G), CNPq (E.G.), the Watson Institute at Brown University under a Brazil Collaborative Grant (S.-C.Y.) and the National Science Foundation under Grant No. DMR-1506634 (K.R.E.). T.A-N. has been supported in part by the Academy of Finland through its COMP Centre of Excellence Program (projects No. 251748 and No. 284621).
Version: Accepted for publication
DOI: 10.1103/PhysRevB.94.235412
URI: https://dspace.lboro.ac.uk/2134/28179
Publisher Link: https://doi.org/10.1103/PhysRevB.94.235412
ISSN: 2469-9950
Appears in Collections:Published Articles (Maths)

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