[Wannier] MLWFs for topological insulator

[Sheleon]

Hi,
Rencently, i am using wannier90 to interplot the bandstructure of 
topolocical insulator (i.e Bi2Se3). However I find it is very hard to 
construct the MLWF for this material.  i have tried various initial 
projections, but the MLWF never seem to be converged. Then i read the 
thread about the HgTe topological insulator and read the papers Ivo 
suggested. However it is still hard for me to get some clue for 
construct the correct input for wannier90. The following is my basic 
input for Bi2Se3, can anyone guide me the parameters i need to obtain 
the MLWFs for Bi2Se3?
###################################
postproc_setup = .true.   !used to write .nnkp file at first run
num_iter = 10000

!comment out for first run, uncomment for stand-alone wannier90 runs
! to improve wannier convergence
!restart = wannierise

! for band plotting
bands_plot = .true.
begin kpoint_path
Z 0.00000  0.00000 0.0000 G 0.50000  0.50000 0.5000
G 0.50000  0.50000 0.5000 F 0.50000  0.00000 0.5000
F 0.50000  0.00000 0.5000 G 0.00000  0.00000 0.0000
G 0.00000  0.00000 0.0000 L 0.00000  0.50000 0.0000
end kpoint_path

iprint = 3

num_wann = 14
num_bands = 25  !avoids breaking up degenerate groups on k-point mesh
exclude_bands = 15-25

begin projections
Bi:s
Se:sp3
end projections

mp_grid = 4  4 4
..........
#############################3
Any suggestion will be appreciate.



Sheleon

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