Surface strain effects on adatom kinetics and self-assembly

M. I. Larsson; R. F. Sabiryanov; K. Cho; B. M. Clemens

doi:10.1016/S0039-6028(03)00579-X

Surface strain effects on adatom kinetics and self-assembly

M. I. Larsson, R. F. Sabiryanov, K. Cho, B. M. Clemens

Physics

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Strain-assisted self-assembly of nanostructures is investigated by means of kinetic Monte Carlo (KMC) simulations of suitable model systems. We show that the local strain dependence of the binding site and saddle-point energies with slopes C_B and C_SP, respectively, is critical for the adatom surface diffusion. The driving forces of surface patterning are identified. If C_B≠0 and C_SP=0, the diffusion is thermodynamically driven and if C_B=0 and C_SP≠0, it is kinetically driven. By varying these slopes the direction of the diffusion current can be controlled. The nanopatterning is quantified by evaluating the corresponding power-density spectra.

Original language	English (US)
Pages (from-to)	L389-L395
Journal	Surface Science
Volume	536
Issue number	1-3
DOIs	https://doi.org/10.1016/S0039-6028(03)00579-X
State	Published - Jun 20 2003

Keywords

Adatoms
Monte Carlo simulations
Self-assembly
Surface diffusion

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/S0039-6028(03)00579-X

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title = "Surface strain effects on adatom kinetics and self-assembly",

abstract = "Strain-assisted self-assembly of nanostructures is investigated by means of kinetic Monte Carlo (KMC) simulations of suitable model systems. We show that the local strain dependence of the binding site and saddle-point energies with slopes CB and CSP, respectively, is critical for the adatom surface diffusion. The driving forces of surface patterning are identified. If CB≠0 and CSP=0, the diffusion is thermodynamically driven and if CB=0 and CSP≠0, it is kinetically driven. By varying these slopes the direction of the diffusion current can be controlled. The nanopatterning is quantified by evaluating the corresponding power-density spectra.",

keywords = "Adatoms, Monte Carlo simulations, Self-assembly, Surface diffusion",

author = "Larsson, {M. I.} and Sabiryanov, {R. F.} and K. Cho and Clemens, {B. M.}",

note = "Funding Information: We are grateful to Prof. W. Nix for valuable discussions. This work is supported by NSF Grant EEC-0085569. The simulations were performed using the computing facilities at the Department of Physics, Karlstad University, Sweden. ",

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doi = "10.1016/S0039-6028(03)00579-X",

language = "English (US)",

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TY - JOUR

T1 - Surface strain effects on adatom kinetics and self-assembly

AU - Larsson, M. I.

AU - Sabiryanov, R. F.

AU - Cho, K.

AU - Clemens, B. M.

N1 - Funding Information: We are grateful to Prof. W. Nix for valuable discussions. This work is supported by NSF Grant EEC-0085569. The simulations were performed using the computing facilities at the Department of Physics, Karlstad University, Sweden.

PY - 2003/6/20

Y1 - 2003/6/20

N2 - Strain-assisted self-assembly of nanostructures is investigated by means of kinetic Monte Carlo (KMC) simulations of suitable model systems. We show that the local strain dependence of the binding site and saddle-point energies with slopes CB and CSP, respectively, is critical for the adatom surface diffusion. The driving forces of surface patterning are identified. If CB≠0 and CSP=0, the diffusion is thermodynamically driven and if CB=0 and CSP≠0, it is kinetically driven. By varying these slopes the direction of the diffusion current can be controlled. The nanopatterning is quantified by evaluating the corresponding power-density spectra.

AB - Strain-assisted self-assembly of nanostructures is investigated by means of kinetic Monte Carlo (KMC) simulations of suitable model systems. We show that the local strain dependence of the binding site and saddle-point energies with slopes CB and CSP, respectively, is critical for the adatom surface diffusion. The driving forces of surface patterning are identified. If CB≠0 and CSP=0, the diffusion is thermodynamically driven and if CB=0 and CSP≠0, it is kinetically driven. By varying these slopes the direction of the diffusion current can be controlled. The nanopatterning is quantified by evaluating the corresponding power-density spectra.

KW - Adatoms

KW - Monte Carlo simulations

KW - Self-assembly

KW - Surface diffusion

UR - http://www.scopus.com/inward/record.url?scp=0038358136&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0038358136&partnerID=8YFLogxK

U2 - 10.1016/S0039-6028(03)00579-X

DO - 10.1016/S0039-6028(03)00579-X

M3 - Article

AN - SCOPUS:0038358136

SN - 0039-6028

VL - 536

SP - L389-L395

JO - Surface Science

JF - Surface Science

IS - 1-3

ER -

Surface strain effects on adatom kinetics and self-assembly

Abstract

Keywords

ASJC Scopus subject areas

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