Hi
i want to plot fermi surface by using CASTEP and for this, i am using following link as reference
http://www.tcm.phy.cam.ac.uk/castep/documentation/WebHelp/content/modules/castep/tskcastepreqfermi.htm
but at the end, i dont find any file to import for fermi surface. i have done this several times but always face this problem so can anyone please tell me in detail how can i solve this problem?