I am a new user of SIESTA. I am trying to calculated the band structure a
pi-conjugated polymer. I have searched in the SIESTA-L, I have found that
I need a blocklabel such as

BandLinesScale  ReciprocalLatticeVectors

%block BandLines
1    0.0   0.0  0.0   # Gamma-point
20  0.5   0.0  0.0   # X-point
etc
%endblock BandLines

I have to add:
WriteBands      True

I have some questions:

1)I noted that BandLinesScales can be scaled by ReciprocalLatticeVectors
or pi/2, which is the differece?

2) The first colum indicates the grid between  two consecutive points. How
Can I know what value Must I use?
What k-points (gamma, x, L, etc) Must I use?

Does it related with WirteKpoints, WreteEigenvalues and Writekbands?

3) Finally. I know about GnuPlot, Does anyone tell me some program for
view the band structures? Does some program for Windows operative system?

Thanks a lot

Gregorio

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