72 citations · 861 across the 58 of their papers we have counts for
13 papers · 1 filter
Mass transport of adsorbates near a discontinuous structural phase transition
E. Granato, S. C. Ying, K. R. Elder +1
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…
Minimum energy path for the nucleation of misfit dislocations in Ge/Si(001) heteroepitaxy
Oleg Trushin, Emile Maras, Alexander Stukowski +4
A possible mechanism for the formation of a 90° misfit dislocation at the Ge/Si(001) interface through homogeneous nucleation is identified from atomic scale calculations where a m…
Evolution of Non-Equilibrium Profile in Adsorbate Layer under Compressive Strain
E. Granato, S. C. Ying
We investigate the time evolution of an initial step profile separating a bare substrate region from the rest of the compressively strained adsorbate layer near a commensurate to i…
Dynamical transitions and sliding friction of the phase-field-crystal model with pinning
J. A. P. Ramos, E. Granato, S. C. Ying +3
We study the nonlinear driven response and sliding friction behavior of the phase-field-crystal (PFC) model with pinning including both thermal fluctuations and inertial effects. T…
Nonlinear Driven Response of a Phase-Field Crystal in a Periodic Pinning Potential
C. V. Achim, J. A. P. Ramos, M. Karttunen +4
We study numerically the phase diagram and the response under a driving force of the phase field crystal model for pinned lattice systems introduced recently for both one and two d…
Two Approaches to Dislocation Nucleation in the Supported Heteroepitaxial Equilibrium Islanding Phenomenon
J. Jalkanen, O. Trushin, K. Elder +3
We study the dislocation formation in 2D nanoscopic islands with two methods, the Molecular Static method and the Phase Field Crystal method. It is found that both methods indicate…
Equilibrium Shape and Size of Supported Heteroepitaxial Nanoislands
J. Jalkanen, O. Trushin, E. Granato +2
We study the equilibrium shape, shape transitions and optimal size of strained heteroepitaxial nanoislands with a two-dimensional atomistic model using simply adjustable interatomi…
Thermal fluctuations and phase diagrams of the phase field crystal model with pinning
J. A. P. Ramos, E. Granato, C. V. Achim +3
We study the influence of thermal fluctuations in the phase diagram of a recently introduced two-dimensional phase field crystal model with an external pinning potential. The model…
Equilibrium shape and dislocation nucleation in strained epitaxial nanoislands
J. Jalkanen, O. Trushin, E. Granato +2
We study numerically the equilibrium shapes, shape transitions and dislocation nucleation of small strained epitaxial islands with a two-dimensional atomistic model, using simple i…
Strain Relief in Cu-Pd Heteroepitaxy
Yafeng Lu, M. Przybylski, O. Trushin +5
We present experimental and theoretical studies of Pd/Cu(100) and Cu/Pd(100) heterostructures in order to explore their structure and misfit strain relaxation. Ultrathin Pd and Cu…
Nonlinear sliding friction of adsorbed overlayers on disordered substrates
Enzo Granato, S. C. Ying
We study the response of an adsorbed monolayer on a disordered substrate under a driving force using Brownian molecular-dynamics simulation. We find that the sharp longitudinal and…
Energetics and atomic mechanisms of dislocation nucleation in strained epitaxial layers
O. Trushin, E. Granato, S. C. Ying +2
We study numerically the energetics and atomic mechanisms of misfit dislocation nucleation and stress relaxation in a two-dimensional atomistic model of strained epitaxial layers o…
Minimum energy paths for dislocation nucleation in strained epitaxial layers
O. Trushin, E. Granato, S. C. Ying +2
We study numerically the minimum energy path and energy barriers for dislocation nucleation in a two-dimensional atomistic model of strained epitaxial layers on a substrate with la…