Hei,
It might be possible for IR intensities using ase package
(https://wiki.fysik.dtu.dk/ase/).
Unfortunately the ASE-implementation does not fully support siesta
calculation for IR intensities (the calculation of dipole moment is
not there for siesta but it should be easy to add).
Alternatively
Dear All,
I disagree with Dr. Torres:
in case Siesta is not having some method built in it is useful for
users to know in which codes the desired option is present.
Open competition between codes should benefit users.
terveisin, Markus
--www=http://www.iki.fi/markus.kaukonen
--markus.kauko...@
Sorry the previous message (Fermid: qtot,sumq= 2687.99736 NaN),
I had messed up with compilers, now siesta 2.02 works fine.
Markus
Dear Siesta,
I'm trying to run a two crossed nanotube (14,0) calculation with ~672
atoms and diagonal solution method (the full input fdf-file below).
Getting the following error with a computer that should have plenty of
memory (10GB) and with Siesta 2.02
I tested additionally taking either of the
Dear Siesta,
There was no response to my infrared question (see below).
Luckily, they have now implemented infrared intensities in the ASE
package which can drive Siesta.
https://wiki.fysik.dtu.dk/ase/
Terveisin Markus
>Dear Siesta,
>In the manual (siesta 2.0.2 page 41) it is said:
>>The Bo
Dear Siesta,
In the manual (siesta 2.0.2 page 41) it is said:
>The Born efective charges allow the calculation of LO-TO splittings and
>infrared activities.
>The version of the Vibra utility code in which these magnitudes are calculated
>is not yet
>distributed with Siesta, but can be obtained
Dear Siesta,
>The amplitude of variations of the sum of forces (around zero),
>periodic with the step of the real-space mesh,
>does indeed depend on MeshCutoff and can be gradually suppressed
>when increasing the latter.
>See tutorials on the Siesta web page on this subject.
>Best regards
>Andrei
Dear Siesta,
In VASP manual it is stated (http://cms.mpi.univie.ac.at/vasp/vasp/node61.html)
>We strongly recommend to use only Gamma centered grids for hexagonal lattices.
>Many tests we have performed indicate that the energy converges significantly
>>faster with $\Gamma$ centered grids than w
8 matches
Mail list logo