I am writing to seek guidance on calculating the Chern number for a 3D ferromagnetic semiconductor material. I intend to determine whether that material is a 3D Chern insulator or not. After reviewing the available resources, I've come across WannierTools as a potential tool for this task where you can use the following input values to perform chern calculation
Chern_3D_calc = T
NumOccpuied = 88 ! No. of occupied wannier bands
Nk1 = 41 ! No. of slices of the k points for WCCs
Nk2 = 41 ! No. of slices of the k points for WCCs
Now, my primary question is whether I can proceed with these input values and, subsequently, read the output file to determine the Chern number, similar to the process used for finding the Z2 number for 3D topological insulators. I would greatly appreciate a detailed explanation of it. Your expertise in this matter would be invaluable to me.