Dear Petr Khomyakov,
Thank you very much for your kind reply.
However, this tutorial is not the one I am looking for. Once there were two tutorials on topological insulator on the website, one is about the bulk properties of Bi2Se3 topological insulator, the tutorial that you mentioned; the other one is about the transport properties of Bi2Se3 thin film device. I saw the latter tutorial (a case study) last year, when it was not fully completed. Now I cannot even find this uncompleted tutorial on the website.
Can you help me with this problem? Thanks again for your help!
Best regards,
lknife