[Wannier] how could i understand wannier function is real?

[nafise rezaei]

Dear Nicola,

 Thanks for your quick reply.when wannier functions is
real,Hamiltonian matrix element Hmn
in the WF basis is real.Is this TRUE?

*in the powerpoints of "Wannier90 A brief overview of
**the code,Jonathan Yates,Cavendish Laboratory, Cambridge University"
**, it has mentioned that for believe the results should be Spread
well converged (<10-5 Ang2) and
Individual Spreads small (<5 Ang2 ) and MLWF real (plot them) and
for disentanglement plot interpolated bands. should i be check all of these? *

 Thank you in advance,
Best regards
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.quantum-espresso.org/pipermail/wannier/attachments/20080303/642879d6/attachment.html>