Dear Hulei Yu,
Yes, Z2Pack can be used to calculate mirror Chern numbers. The way this is done is by calculating overlap matrices only for the +i or -i eigenstates, instead of all bands. This is currently implemented for Quantum Espresso 5.3 in the 'pw2z2pack' routine. You can find it here: https://github.com/Z2PackDev/Z2Pack/tree/dev/current/examples/fp/pw2z2pack, along with an example for SnTe.
Best regards,
Dominik Gresch
On 06.03.2017 09:25, YU, Hulei wrote:
Dear professor,
I am a beginner of Z2Pack. The software could calculate the chern number for TIs conveniently. I would like to know that whether Z2Pack could be used or revised to calculate the Mirror chern number (for /topological crystalline insulator/s). Thanks. Regards Hulei YU Mechanics and Materials Department of Mechanical Engineering #29, COB LG-111, The University of Hong Kong, Pokfulam Road, Hong Kong Email:yuhulei@hku.hk mailto:yuhulei@hku.hk orkillayhl@163.com mailto:killayhl@163.com