Papers › Twister: Construction and structural relaxation of commensurate moiré superlattices

Twister: Construction and structural relaxation of commensurate moiré superlattices

15 Feb 2021arXiv:2102.07884links table onlyarchive 2025-07-28

Saismit Naik, Mit H. Naik, Indrajit Maity, Manish Jain

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Introduction of a twist between layers of two-dimensional materials which leads to the formation of a moir\'e pattern is an emerging pathway to tune the electronic, vibrational and optical properties. The fascinating properties of these systems is often linked to large-scale structural reconstruction of the moir\'e pattern. Hence, an essential first step in the theoretical study of these systems is the construction and structural relaxation of the atoms in the moir\'e superlattice. We present the Twister package, a collection of tools that constructs commensurate superlattices for any combination of 2D materials and also helps perform structural relaxations of the moir\'e superlattice. Twister constructs commensurate moir\'e superlattices using the coincidence lattice method and provides an interface to perform structural relaxations using classical forcefields.

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