2026-07-09T08:04:10Zhttps://ebiltegia.mondragon.edu/oai/request

oai:ebiltegia.mondragon.edu:20.500.11984/145182026-06-10T06:15:42Zcom_20.500.11984_473com_20.500.11984_14090col_20.500.11984_478

00925njm 22002777a 4500 dc Iraola, Mikel author Mañes, Juan Luis author Bradlyn, Barry author Horton, Matthew K. author Neupert, Titus author García Vergniory, Maia author Tsirkin, Stepan S. author 2021 We present IrRep – a Python code that calculates the symmetry eigenvalues of electronic Bloch states in crystalline solids and the irreducible representations under which they transform. As input it receives bandstructures computed with state-of-the-art Density Functional Theory codes such as VASP, Quantum Espresso, or Abinit, as well as any other code that has an interface to Wannier90. Our code is applicable to materials in any of the 230 space groups and double groups preserving time-reversal symmetry with or without spin-orbit coupling included, for primitive or conventional unit cells. This makes IrRep a powerful tool to systematically analyze the connectivity and topological classification of bands, as well as to detect insulators with non-trivial topology, following the Topological Quantum Chemistry formalism: IrRep can generate the input files needed to calculate the (physical) elementary band representations and the symmetry-based indicators using the Image 1 routine of the Bilbao Crystallographic Server. It is also particularly suitable for interfaces with other plane-waves based codes, due to its flexible structure. 0010-4655 https://hdl.handle.net/20.500.11984/14518 DFT Symmetry Irreducible representations Topology Python Bandstructure IrRep: Symmetry eigenvalues and irreducible representations of ab initio band structures