Re: [QE-users] visualising vibrations from the results of phonon calculations

2019-09-30 Thread Tone Kokalj
On Mon, 2019-09-30 at 15:59 +0200, Yohei Uemura wrote:
> Dear users,
> 
> As someone discussed before, XCrysDen did not work to show the
> motions of atoms.("[Pw_forum] Phonon axsf does not move in XCrysden")

xcrysden shows normal modes with arrows (to this end, either press "f"
or use Display-->Forces menu).

Best regards, Tone
-- 
Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia 
(tel: +386-1-477-3523 // fax: +386-1-251-9385)

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Re: [QE-users] visualising vibrations from the results of phonon calculations

2019-09-30 Thread Timrov Iurii
Dear Yohei,


There is a very nice visualization tool for phonons on the Materials Cloud:

https://www.materialscloud.org/work/tools/interactivephonon


Greetings,

Iurii


--
Dr. Iurii Timrov
Postdoctoral Researcher
STI - IMX - THEOS and NCCR - MARVEL
Swiss Federal Institute of Technology Lausanne (EPFL)
CH-1015 Lausanne, Switzerland
+41 21 69 34 881
http://people.epfl.ch/265334

From: users  on behalf of Yohei 
Uemura 
Sent: Monday, September 30, 2019 3:59:50 PM
To: users@lists.quantum-espresso.org
Subject: [QE-users] visualising vibrations from the results of phonon 
calculations

Dear users,

I'm new for quantum espresso (phonon.x).
I calculated the vibrations of CO2 or CH4.
I would like to visualise the motion of atoms in CO2 or CH4.

As someone discussed before, XCrysDen did not work to show the motions of 
atoms.("[Pw_forum] Phonon axsf does not move in XCrysden")

Does anyone know how to visualise the motions of atoms?
I have the output file from dynmat.x.

Best regards,
Yohei
--

Yohei Uemura (Ph.D)
Affiliation : Paul Scherrer Institut (PSI),
  Laboratory for Environmental Chemistry (LUC)
Address : OFLB 106 (PSI Ost), PSI, Forschungsstrasse 111,
 5232 Villigen, Switzerland
Phone: +41 (0)5-6310-4571

上村洋平
所属 : Paul Scherrer Institut (PSI),
  Laboratory for Environmental Chemistry (LUC)
住所 : OFLB 106 (PSI Ost), PSI, Forschungsstrasse 111,
  5232 Villigen, Switzerland
電話 : +41 (0)5-6310-4571

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[QE-users] visualising vibrations from the results of phonon calculations

2019-09-30 Thread Yohei Uemura
Dear users,

I'm new for quantum espresso (phonon.x).
I calculated the vibrations of CO2 or CH4.
I would like to visualise the motion of atoms in CO2 or CH4.

As someone discussed before, XCrysDen did not work to show the motions of
atoms.("[Pw_forum] Phonon axsf does not move in XCrysden")

Does anyone know how to visualise the motions of atoms?
I have the output file from dynmat.x.

Best regards,
Yohei
-- 

Yohei Uemura (Ph.D)
Affiliation : Paul Scherrer Institut (PSI),
  Laboratory for Environmental Chemistry (LUC)
Address : OFLB 106 (PSI Ost), PSI, Forschungsstrasse 111,
 5232 Villigen, Switzerland
Phone: +41 (0)5-6310-4571

上村洋平
所属 : Paul Scherrer Institut (PSI),
  Laboratory for Environmental Chemistry (LUC)
住所 : OFLB 106 (PSI Ost), PSI, Forschungsstrasse 111,
  5232 Villigen, Switzerland
電話 : +41 (0)5-6310-4571

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users mailing list users@lists.quantum-espresso.org
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Re: [QE-users] Ce19O32 cluster does not convergence

2019-09-30 Thread Giuseppe Mattioli


Dear Andrey
I see that you are trying to relax your cluster. I suppose that the Ce  
f electrons require some correction to delocalization, as suggested by  
José. But this is not enough in the case of EXX, because the first scf  
step in the inner EXX loop is a GGA step and may fail. You can try by  
using diagonalization='cg', which is more stable than 'david', but my  
advice is to try with scf_must_converge=.false. This is useful in the  
case of GGA or DFT+U, because it forces the geometry step even with an  
unconverged wavefunction. This can help you to cross your system over  
to structures easier to converge. This is also useful in the case of  
EXX, because you can enter the first EXX calculation with an  
unconverged wavefunction, localize it and improve it through smoother  
inner-loop iterations.

HTH
Giuseppe


"José C. Conesa"  ha scritto:


Dear Andrey,

This type of system usually needs a DFT+U or hybrid functional  
treatment, otherwise the electrons are too delocalized. Perhaps this  
is the reason for lack of convergence.


Hope this helps,

José Carlos Conesa

El 29/09/2019 a las 16:08, Andrey Chibisov escribió:

Hello.
I study Ce19O32 cluster, but I can't get the total energy convergence.
My input file is:

calculation ='relax',
restart_mode='from_scratch',
!restart_mode='restart',
wf_collect = .TRUE.,
verbosity='high'
pseudo_dir='/home/achibisov/CeO2/PBEsol',
outdir='/home/achibisov/CeO2/Ce19O32/temp',
forc_conv_thr = 0.01
/

ibrav=0,
  celldm(1)=47.2431531141d0,
nat=51,
  ntyp=2,
 ecutwfc = 80.0,
 ecutrho = 800
 nbnd = 216,
   nspin = 2,
tot_magnetization = 0,
!occupations='smearing',
smearing='gaussian', degauss=0.001
!occupations='fixed',
occupations='from_input',
!input_dft='gaup', nqx1=3, nqx2=3, nqx3=3,
!exxdiv_treatment='none'
!x_gamma_extrapolation = .false.
/

conv_thr = 1.D-3,
mixing_beta = 0.1,
/

ion_dynamics = 'bfgs',
/

cell_dynamics = 'bfgs',
cell_dofree = 'all'
/
ATOMIC_SPECIES
 Ce 140.116000d0 Ce.UPF
 O 15.999400d0 O.UPF
ATOMIC_POSITIONS (crystal)
  Ce   0.4868629311d0   0.3815474927d0   0.3558657432d0
Ce   0.3771040218d0   0.490420d0   0.3549706445d0
  Ce   0.6997754464d0   0.490420d0   0.4702201205d0
Ce   0.4817073780d0   0.490420d0   0.6789561145d0
  Ce   0.5929365462d0   0.490420d0   0.5766024711d0
Ce   0.4856620596d0   0.490420d0   0.4648645351d0
  Ce   0.5970259661d0   0.490420d0   0.3568597695d0
Ce   0.4878552272d0   0.490420d0   0.2520196160d0
  Ce   0.3758834729d0   0.3812732135d0   0.4636105009d0
Ce   0.5946046648d0   0.5992001660d0   0.4665465423d0
  Ce   0.4834909260d0   0.5989686798d0   0.5739788312d0
Ce   0.4852252352d0   0.7025437161d0
0.4644374565d0
  Ce   0.3742294968d0   0.490420d0
0.5727685260d0
Ce   0.4868629311d0   0.5992925073d0
0.3558657432d0
  Ce   0.3758834729d0   0.5995667865d0   
 0.4636105009d0
Ce   0.2710982326d0
0.490420d0   0.4624561301d0
  Ce   0.4852252352d0
0.2782962839d0   0.4644374565d0
Ce   0.4834909260d0
0.3818713202d0   0.5739788312d0
  Ce   0.5946046648d0
0.3816398340d0   0.4665465423d0
 O   0.4284190778d0
0.6603888564d0   0.4068385834d0
O   0.4284190778d0
0.3204511436d0   0.4068385834d0
   O   0.4303395760d0
0.4335412916d0   0.2944091083d0
  O
0.5406516600d0   0.3208219210d0   0.5230927952d0
 O
0.4268663193d0   0.3204747807d0   0.5205121157d0
O
0.4252404411d0   0.4334727625d0   0.6353234695d0
   O
0.4274621721d0   0.4342213819d0   0.5206566174d0
  O
0.4294662094d0   0.4340081656d0   0.4077237855d0
 O   
 0.5453391746d0   0.4338342959d0   0.2948938831d0
 
O   0.5436599091d0   0.3208116404d0   0.4083172133d0
 
   O   0.5435957226d0   0.4343203087d0   0.4082928771d0
 
  O   0.6574624760d0   0.4339635776d0   0.4125821189d0
 
 O   0.3132683540d0   0.4337662653d0   0.5196972618d0
   

Re: [QE-users] Ce19O32 cluster does not convergence

2019-09-30 Thread José C . Conesa

Dear Andrey,

This type of system usually needs a DFT+U or hybrid functional 
treatment, otherwise the electrons are too delocalized. Perhaps this is 
the reason for lack of convergence.


Hope this helps,

José Carlos Conesa

El 29/09/2019 a las 16:08, Andrey Chibisov escribió:

Hello.
I study Ce19O32 cluster, but I can't get the total energy convergence.
My input file is:

calculation ='relax',
restart_mode='from_scratch',
!restart_mode='restart',
wf_collect = .TRUE.,
verbosity='high'
 pseudo_dir='/home/achibisov/CeO2/PBEsol',
 outdir='/home/achibisov/CeO2/Ce19O32/temp',
forc_conv_thr = 0.01
/

ibrav=0,
   celldm(1)=47.2431531141d0,
 nat=51,
   ntyp=2,
  ecutwfc = 80.0,
  ecutrho = 800
  nbnd = 216,
nspin = 2,
tot_magnetization = 0,
!occupations='smearing',
smearing='gaussian', degauss=0.001
!occupations='fixed',
occupations='from_input',
!input_dft='gaup', nqx1=3, nqx2=3, nqx3=3,
!exxdiv_treatment='none'
!x_gamma_extrapolation = .false.
/

conv_thr = 1.D-3,
mixing_beta = 0.1,
/

ion_dynamics = 'bfgs',
/

cell_dynamics = 'bfgs',
cell_dofree = 'all'
/
ATOMIC_SPECIES
  Ce 140.116000d0 Ce.UPF
  O 15.999400d0 O.UPF
ATOMIC_POSITIONS (crystal)
   Ce   0.4868629311d0   0.3815474927d0   0.3558657432d0
 Ce   0.3771040218d0   0.490420d0   0.3549706445d0
   Ce   0.6997754464d0   0.490420d0   0.4702201205d0
 Ce   0.4817073780d0   0.490420d0   0.6789561145d0
   Ce   0.5929365462d0   0.490420d0   0.5766024711d0
 Ce   0.4856620596d0   0.490420d0   0.4648645351d0
   Ce   0.5970259661d0   0.490420d0   0.3568597695d0
 Ce   0.4878552272d0   0.490420d0   0.2520196160d0
   Ce   0.3758834729d0   0.3812732135d0   0.4636105009d0
 Ce   0.5946046648d0   0.5992001660d0   0.4665465423d0
   Ce   0.4834909260d0   0.5989686798d0   0.5739788312d0
 Ce   0.4852252352d0   0.7025437161d0   0.4644374565d0
   Ce   0.3742294968d0   0.490420d0   0.5727685260d0
 Ce   0.4868629311d0   0.5992925073d0   
0.3558657432d0
   Ce   0.3758834729d0   0.5995667865d0   
0.4636105009d0
 Ce   0.2710982326d0   0.490420d0   
0.4624561301d0
   Ce   0.4852252352d0   0.2782962839d0   
0.4644374565d0
 Ce   0.4834909260d0   0.3818713202d0   
0.5739788312d0
   Ce   0.5946046648d0   0.3816398340d0   
0.4665465423d0
  O   0.4284190778d0   0.6603888564d0   
0.4068385834d0
 O   0.4284190778d0   
0.3204511436d0   0.4068385834d0
O   0.4303395760d0   
0.4335412916d0   0.2944091083d0
   O   0.5406516600d0   
0.3208219210d0   0.5230927952d0
  O   0.4268663193d0   
0.3204747807d0   0.5205121157d0
 O   0.4252404411d0   
0.4334727625d0   0.6353234695d0
O   0.4274621721d0  
 0.4342213819d0   0.5206566174d0
   O   
0.4294662094d0   0.4340081656d0   0.4077237855d0
  O   
0.5453391746d0   0.4338342959d0   0.2948938831d0
 O   
0.5436599091d0   0.3208116404d0   0.4083172133d0
O   
0.5435957226d0   0.4343203087d0   0.4082928771d0
   O   
0.6574624760d0   0.4339635776d0   0.4125821189d0
  O 
  0.3132683540d0   0.4337662653d0   0.5196972618d0

 O   0.4303395760d0   0.5472987084d0   0.2944091083d0

O   0.3146749157d0   0.4334990899d0   0.4063334249d0

   O   0.6564105394d0   0.5474457199d0   0.5266229596d0

  O   0.4268663193d0   0.6603652193d0   0.5205121157d0

 O   0.4252404411d0   0.5473672375d0   0.6353234695d0

O   0.3132683540d0   0.5470737347d0   0.5196972618d0