Hi Niu:
The manu has said about it, see "LatticeConstant": 
NOTE: A LatticeConstant value, even if redundant, might be needed for other 
options, such as the units of the k-points used for band-structure 
calculations. This mis-feature will be corrected in future versions. 



2010-09-27 



taoohee 



发件人: Changning Niu 
发送时间: 2010-09-27  10:32:08 
收件人: siesta-l 
抄送: 
主题: Re: [SIESTA-L] bug? using STRUCT_IN along with 
BandLinesScaleReciprocalLatticeVectors 
 
Dear Antoine and dear Jose,


I met this problem, too. I found the Label.bands file would be obtained as long 
as LatticeConstant added. I cannot figure out why.


Hope this is helpful to you.


Best regards,


On Mon, Jul 5, 2010 at 8:00 PM, Jose A. Torres <[email protected]> 
wrote:

Dear Antoine:

I guess I can explain at least the extension of "out.fdf": It
is an fdf file that can be used as a standard siesta
input file ... so may be "fdf_log.fdf" could be a better
name :o)

Other than that, thanks a lot for the detailed report, we
are scrutinizing it from this moment.
Yours
Jose A.

--
Jose A. Torres, Ph.D.
SIESTA Manager




On 7/3/2010 12:38 AM, Antoine Pairet wrote:

Dear Siesta developers,
I think a found a bug in SIESTA when computing bandstructures.
It occurs when two conditions are met:
* a structure is read from a STRUCT_IN file (UseStructFile T)
* the High symmetry Kpoints are defined in reduced coordinates of
thereciprocal lattice vectors (BandLinesScale ReciprocalLatticeVectors).

A PDF file showing six examples is attached to this email. The
bandstructures are plotted and key variables of the FDF file are
specified. The last lines of the corresponding .bands file is also
given.

FDF files and the STRUCT_IN are also attached to this email. Note that
the version of SIESTA that is used is version 3.0-b. I have used the
diff utility to compare the different XV files and make sure the
geometry ix the same is each case.

By the way, SIESTA outputs the following in SystemLabel.out:
  siesta: A complete list of the parameters used, including default
values,
  siesta: can be found in file out.fdf
Shouldn't out.fdf be changed to fdf.log? I think this comes from the
heritage of Siesta 2 ;-).

Regards,
Antoine Pairet

PS: Note that I will be unavailable next week, if more information is
required to track the problem, I will provide them when I come back on
the 12th of July.
  




-- 
Changning Niu
University of Science and Technology Beijing
Phone: 86-18901263077
Email: [email protected]

Responder a