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Structures
Brillouin Zone Viewer
By Prasad Sarangapani1, Arun Goud Akkala1, Sebastian Steiger1, Hong-Hyun Park1, Yosef Borga2, Tillmann Christoph Kubis1, Michael Povolotskyi1, Gerhard Klimeck1
1. Purdue University 2. Jackson State University
Visualize Brillouin zones of different crystals and different unit cells
Crystal Viewer 3
Crystal Viewer 3.0 is a new tool starting from scratch that is based on the old version 2.3.4 but aims to include better visualization and new features. It visualizes 14 Bravais lattices, Miller planes, and crystal structures of specific materials needed for many courses in materials science, electronics and solid state chemistry. Users can also create and view materials not included in the database. The main purpose of this educational tool is to provide insight about the crystalline structure of various materials.
Crystal Viewer 2.3.4 Classic Version
Crystal Viewer is a great introductory simulation tool that allows users to create unit cells of common materials as well as carbon nanostructures that include graphene, carbon nanotubes with varying chirality, and bucky balls.
Equillibrium Wulff Shape Generator
By R. Edwin García, John Blendell
Purdue University
Wulff Shape Generator --Wulffman is a program for interactively examining the Wulff shapes of crystals with specified symmetries. The Wulff shape is the shape that possesses the lowest surface energy for a fixed volume, and hence represents the ideal shape that the crystal would take in the absence of other constraints. For a periodic crystal, i.e., one that can be generated by periodic repetition of a simple unit cell , the Wulff shape must be consistent with the crystallographic point group symmetry of the underlying crystal. The point group is simply the set of all point isometries (rotations, roto-inversions, and reflections) that leave the environment around a point unchanged. In the most general case, the Wulff shape will be a convex polyhedron whose faces (facets) correspond to crystal planes that are low in energy.