FeSb2
2 1 #imode
0.0 3.50 0.001 5.d-7 #energy window
3 # number of vks to follow, max 3
1 2 3  # 1=x read vk_x
1      #imesh
0.0 -0.291546 0.291546    # w0(i),i=1,imesh
5d-9 1d-6   #1d-11  #w1(i)   
1.5 1.0    #meshd(i)