Dear Sohail,

bilayer PdS2 becomes metallic and thus you need to change from occupations='fixed' to 'smearing'...
See also:

http://onlinelibrary.wiley.com/doi/10.1002/anie.201309280/full

Regards

Thomas Brumme

Zitat von Sohail Ahmad <sohailphys...@yahoo.co.in>:

I wish to apply electric field in Z direction to bilayers but it didnot get converge aven after 5 days....while in case of monolayer its fine... Please rectify the mistakes in the following input----------------------------------------------------------------------------------------------
&control
   calculation = 'relax',
   restart_mode = 'from_scratch',
   pseudo_dir= '/home/sohail/pseudo',
   outdir='./OUT',
   prefix='PdS2bAAel04',
  lelfield = .true.,
  gdir = 3,
  etot_conv_thr = 1.0d-5,
  forc_conv_thr = 1.0d-4,
/
&system
  ibrav = 4, a = 3.53, b = 3.53, c = 20.0, cosAB = -0.5, cosAC = 0.0, cosBC = 0.0,
  nat = 6, ntyp = 2,
  ecutwfc = 80,
  ecutrho = 400,
  nbnd = 40,
  occupations = 'fixed',
/
 &electrons
  mixing_beta = 0.3,
  conv_thr = 1.0d-9,
  electron_maxstep = 900,
efield_cart(1) = 0.0d0,
efield_cart(2) = 0.0d0,
efield_cart(3) = 0.0108d0,
/
&ions
ion_dynamics = 'bfgs',
/
ATOMIC_SPECIES
Pd  106.42  Pd.pbe-mt_fhi.UPF
S    32.06  S.pbe-mt_fhi.UPF
ATOMIC_POSITIONS  angstrom
Pd    0.00000000    0.00000000    0.00000000
S     1.76627922    1.01975766    1.28191684
S     1.76627922   -1.01975766   -1.28191684
Pd    0.00000000    0.00000000    6.60000000
S     1.76627922    1.01975766    7.88191684
S     1.76627922   -1.01975766    5.31808316
K_POINTS AUTOMATIC
16 16  4  0  0  0
 ---------------------------------------------------------------------
Dr. Sohail AhmadDepartment of PhysicsKing Khalid UniversityAbha, Saudi Arabia--------------------------------------------------------------------

--
Dr. rer. nat. Thomas Brumme
Wilhelm-Ostwald-Institute for Physical and Theoretical Chemistry
Leipzig University
Phillipp-Rosenthal-Strasse 31
04103 Leipzig

Tel:  +49 (0)341 97 36456

email: thomas.bru...@uni-leipzig.de


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