5 citations · 18 across the 11 of their papers we have counts for
11 papers
Harmonic mesh modelling of hexagonal FeN stripes on Cu(001)
Wolfgang Kappus
Hexagonal FeN monolayers on Cu(001) show a stripe pattern composed of dark and bright stripes as observed recently by scanning tunneling microscopy (STM). Here a harmonic mesh mode…
Adatom generated spatially oscillating strain fields on isotropic and other substrates
Wolfgang Kappus
An extended elastic eigenvector approach for adatom interactions is applied to elastically isotropic substrates. The oscillating interactions between adatom monomers or dimers are…
Modelling the size of Nitrogen c(2x2) islands on Cu(001) with elastic multisite interactions
Wolfgang Kappus
An extended elastic eigenvector approach for adatom interactions is applied to model Nitrogen c(2x2) Atom islands on Cu(001). Oscillating interactions between adatom monomers or di…
Elastic interactions of Fe adatoms on Cu(111) at the mesoscale
Wolfgang Kappus
An extended elastic eigenvector approach had earlier been developed to interpret ab-initio calculations of adatom interactions. It shows oscillating interactions as well as trio- a…
Adatom pair distribution up to half coverage: O-Pd(100)
Wolfgang Kappus
The superposition approximation and the Born-Green-Yvon (BGY) equation allows calculation of pair distributions in thermal equilibrium from pair potentials. A 2-d variant can be us…
Strain mediated tri- and quattro- interactions of adatoms
Wolfgang Kappus
Lateral interactions of oxygen adatoms derived from first-principles calculations of the O-Pd(100) system had been claimed to include trio- and quattro terms beside pair interactio…
First-principles lattice-gas Hamiltonian revisited: O-Pd(100)
Wolfgang Kappus
The methodology of deriving an adatom lattice-gas Hamiltonian (LGH) from first principles (FP) calculations is revisited. Such LGH cluster expansions compute a large set of lateral…
Strain mediated interaction of adatom dimers
Wolfgang Kappus
An earlier model for substrate strain mediated interactions between monomer adatoms is extended to the interaction of monomers with dimers and the interaction of dimers. While mono…
Strain mediated adatom stripe morphologies on Cu<111> simulated
Wolfgang Kappus
Substrate strain mediated adatom configurations on Cu<111> surfaces have been simulated in a coverage range up to nearly 1 monolayer. Interacting adatoms occupy positions on a tria…
Stability and Dynamic of strain mediated Adatom Superlattices on Cu<111>
Wolfgang Kappus
Substrate strain mediated adatom density distributions have been calculated for Cu<111> surfaces. Complemented by Monte Carlo calculations a hexagonal close packaged adatom superla…
Strain Induced Adatom Correlations
Wolfgang Kappus
A Born-Green-Yvon type model for adatom density correlations is combined with a model for adatom interactions mediated by the strain in elastic anisotropic substrates. The resultin…