662 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of PotsdamDE34 papers
- University of HelsinkiFI26 papers
- Aalto UniversityFI23 papers
- Tampere UniversityFI18 papers
- Centre National de la Recherche ScientifiqueFR17 papers
- Northeastern UniversityUS17 papers
- University of JyväskyläFI14 papers
- Brown UniversityUS13 papers
- Technical University of MunichDE13 papers
- Aarhus UniversityDK12 papers
- Helsinki Institute of PhysicsFI10 papers
- Charles UniversityCZ9 papers
17 papers · 1 filter
Non-equilibrium surface diffusion in the O/W(110) system
I. Vattulainen, J. Merikoski, T. Ala-Nissila +1
In this Letter, we present results of an extensive Monte Carlo study of the O/W(110) system under non-equilibrium conditions. We study the mean square displacements and long wavele…
Diffusive Spreading of Chainlike Molecules on Surfaces
T. Ala-Nissila, S. Herminghaus, T. Hjelt +1
We study the diffusion and submonolayer spreading of chainlike molecules on surfaces. Using the fluctuating bond model we extract the collective and tracer diffusion coefficients D…
Dynamics of Spreading of Chainlike Molecules with Asymmetric Surface Interactions
M. Haataja, J. A. Nieminen, T. Ala-Nissila
In this work we study the spreading dynamics of tiny liquid droplets on solid surfaces in the case where the ends of the molecules feel different interactions with respect to the s…
Kinetic roughening of surfaces: Derivation, solution and application of linear growth equations
S. Majaniemi, T. Ala--Nissila, J. Krug
We present a comprehensive analysis of a linear growth model, which combines the characteristic features of the Edwards--Wilkinson and noisy Mullins equations. This model can be de…
Atomic exchange mean field study of intermixing of Au on Ag(110)
J. A. Nieminen
A mean field method to study heteroepitaxial thin film growth is applied to growth, intermixing and surface reconstructions of on . The results are in accordance with…
Molecular ordering of precursor films during spreading of tiny liquid droplets
M. Haataja, J. A. Nieminen, T. Ala-Nissila
In this work we address a novel feature of spreading dynamics of tiny liquid droplets on solid surfaces, namely the case where the ends of the molecules feel different interactions…
Scaling, Propagation, and Kinetic Roughening of Flame Fronts in Random Media
N. Provatas, T. Ala-Nissila, M. Grant +2
We introduce a model of two coupled reaction-diffusion equations to describe the dynamics and propagation of flame fronts in random media. The model incorporates heat diffusion, it…
Temperature dependence of surface reconstructions of Au on Pd(110)
J. A. Nieminen
Surface reconstructions of Au film on Pd(110) substrate are studied using a local Einstein approximation to quasiharmonic theory with the Sutton-Chen interatomic potential. Tempera…
Numerical Studies of the Two Dimensional XY Model with Symmetry Breaking Fields
T. Ala-Nissila, E. Granato, K. Kankaala +2
We present results of numerical studies of the two dimensional XY model with four and eight fold symmetry breaking fields. This model has recently been shown to describe hydrogen i…
Physical tests for Random Numbers in Simulations
I. Vattulainen, T. Ala-Nissila, K. Kankaala
We propose three physical tests to measure correlations in random numbers used in Monte Carlo simulations. The first test uses autocorrelation times of certain physical quantities…
Simulations of Solid-on-Solid Models of Spreading of Viscous Droplets
O. Venalainen, T. Ala-Nissila, K. Kaski
We have studied the dynamics of spreading of viscous non-volatile fluids on surfaces by MC simulations of SOS models. We have concentrated on the complete wetting regime, with surf…
Scaling Exponents for Driven Two-Dimensional Growth
T. Ala-Nissila, O. Venalainen
We present results of numerical simulations to estimate scaling exponents associated with driven surface growth in two spatial dimensions. We have simulated the restricted solid--o…
Dynamics of Spreading of Small Droplets of Chainlike Molecules on Surfaces
J. A. Nieminen, T. Ala- Nissila
Dynamics of spreading of small droplets on surfaces has been studied by the molecular dynamics method. Simulations have been performed for mixtures of solvent and dimer, and solven…
Roughening of the Cu(110) Surface
J. Merikoski, H. Hakkinen, M. Manninen +2
The structure of the Cu(110) surface is studied at high temperatures using a combination of lattice-gas Monte Carlo and molecular dynamics methods with identical many-atom interact…
Morphological Changes of Small Viscous Droplets under Spreading
O. Venäläinen, T. Ala-Nissila, K. Kaski
Dynamics of spreading of viscous non - volatile fluid droplets on surfaces is modelled using a solid - on - solid model, which is studied with Monte Carlo simulations. Tendency for…
Scaling Exponents for Kinetic Roughening in Higher Dimensions
T. Ala-Nissila, T. Hjelt, J. M. Kosterlitz +1
We discuss the results of extensive numerical simulations in order to estimate the scaling exponents associated with kinetic roughening in higher dimensions, up to d=7+1. To this e…
Theory of adsorbate induced surface reconstruction on W(100)
Kari Kankaala, Tapio Ala-Nissila, See-Chen Ying
We report results of a theoretical study on an adsorbate induced surface reconstruction. Hydrogen adsorption on a W(100) surface causes a switching transition in the symmetry of th…