Documentation #2393

Examples > Hexagonal lattices with basis: choose other correlation length, and explain things

Added by wuttke 2 months ago.

Status:NewStart date:31 Jul 2019
Priority:NormalDue date:
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Description

The current correlation length is extremely small (1R). This is unrealistic; it obscures the Bragg rods from the 2D lattice; and it exacerbates the unphysical symmetry breaking. Let's choose a larger correlation length.

Expand the header comment to explain:
  • that there is an unphysical symmetry breaking, and where it comes from;
  • that there is a finite correlation length, what it is meant to represent, why it is needed, and what effects and problems are to be expected when smaller or larger values are chosen.

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