Diffuse scattering from stacking faults: scaling of pair correlation function

On the energy of terminated stacking faults

The equilibrium of dissociated dislocations is discussed in terms of intrinsic material properties such as the ideal stacking fault energy (ideal SFE) and the stacking fault (SF) strain. The ideal SFE is de® ned as the energy per unit area of an in® nitely extendedSF in an ideal in® nite crystal. The e€ ective SFE is de® ned as the energy per unit area of a terminated SF. The terminated SF is a...

Pair Correlation Function of Wilson Loops

We give a path integral prescription for the pair correlation function of Wilson loop observables on the worldvolume of a Dbrane in the bosonic string theory in flat spacetime. We determine the coefficient of the 1/R term in the static heavy quark potential from the static pair correlation function of Wilson lines at small spatial separation in the critical string theory. We verify that the pai...

Stacking faults and partial dislocations in graphene

We investigate two mechanisms of crystallographic slip in graphene, corresponding to glide and shuffle generalized stacking faults (GSF), and compute their -curves using Sandia National Laboratories Large-scale Atomic/Molecular Massively Parallel Simulator (LAMMPS). We find evidence of metastable partial dislocations for the glide GSF only. The computed values of the stable and unstable stackin...

Shockley-Frank stacking faults in 6H-SiC

Pair Correlation Function Realizability: Lattice Model Implications†

Despite their long history in experiment, simulation, and analytical theory, pair correlation functions that describe local order in many-body systems still retain a legacy of mathematical mysteries. One such open question concerns “realizability” of a given candidate pair correlation function, namely whether it actually represents the pair correlation for some spatial distribution of particles...