ElaStic

This software package allows you to obtain full second-order elastic tensors (elastic constants) for all crystal lattice types and third-order elastic-constants for cubic, hexagonal, and rhombohedral crystals. This code is written in the Python programming language and uses the SGROUP tool as symmetry and space-group calculator and utilizes the density-functional codes exciting, Wien2k, and Quantum Espresso for energy and stress calculations.
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