Wanniertools

This code works in the tight-binding framework, which can be generated by another software package Wannier90. It can help to classify the topological phase of a given materials by calculating the Wilson loop, and can get the surface state spectrum which is detected by angle resolved photoemission (ARPES) and in scanning tunneling microscopy (STM) experiments . It also identifies positions of Weyl/Dirac points and nodal line structures, calculates the Berry phase around a closed momentum loop and Berry curvature in a part of the Brillouin zone(BZ). Besides, WannierTools also can calculate ordinary magnetoresistance for non-magnetic metal and semimetal using Boltzmann transport theory, calculate Landau level spectrum with given magnetic field direction and strength, and get unfolded energy spectrum from a supercell calculation.