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VASP OUTCAR文件中的关键字介绍

已有 16808 次阅读 2011-9-20 12:27 |个人分类:VASP|系统分类:科研笔记

NWRITE =      2    write-flag & timer
   PREC   = high      normal or accurate (medium, high low for compatibility)
   ISTART =      0    job   : 0-new  1-cont  2-samecut
   ICHARG =     11    charge: 1-file 2-atom 10-const
   ISPIN  =      1    spin polarized calculation?
   LNONCOLLINEAR =      T non collinear calculations
   LSORBIT =      T    spin-orbit coupling
   INIWAV =      1    electr: 0-lowe 1-rand  2-diag
   LASPH  =      F    aspherical Exc in radial PAW
   METAGGA=      F    non-selfconsistent MetaGGA calc.
 Electronic Relaxation 1
   ENCUT  =  500.0 eV  36.75 Ry    6.06 a.u.  36.46 36.46 36.46*2*pi/ulx,y,z
   ENINI  =  500.0     initial cutoff
   ENAUG  =  644.9 eV  augmentation charge cutoff
   NELM   =     60;   NELMIN=  2; NELMDL= -5     # of ELM steps
   EDIFF  = 0.1E-05   stopping-criterion for ELM
   LREAL  =      T    real-space projection
   LCOMPAT=      F    compatible to vasp.4.4
   GGA_COMPAT  = F    GGA compatible to vasp.4.4-vasp.4.6
   LMAXPAW     = -100 max onsite density
   LMAXMIX     =    4 max onsite mixed and CHGCAR
   VOSKOWN=      1    Vosko Wilk Nusair interpolation
   ROPT   =   -0.00040  -0.00040  -0.00040
 Ionic relaxation
   EDIFFG = 0.1E-04   stopping-criterion for IOM
   NSW    =      0    number of steps for IOM
   NBLOCK =      1;   KBLOCK =      1    inner block; outer block
   IBRION =     -1    ionic relax: 0-MD 1-quasi-New 2-CG
   NFREE  =      0    steps in history (QN), initial steepest desc. (CG)
   ISIF   =      2    stress and relaxation
   IWAVPR =     10    prediction:  0-non 1-charg 2-wave 3-comb
   ISYM   =      0    0-nonsym 1-usesym 2-fastsym
   LCORR  =      T    Harris-Foulkes like correction to forces
   POTIM  = 0.5000    time-step for ionic-motion
   TEIN   =    0.0    initial temperature
   TEBEG  =    0.0;   TEEND  =   0.0 temperature during run
   SMASS  =  -3.00    Nose mass-parameter (am)
   estimated Nose-frequenzy (Omega)   =  0.10E-29 period in steps =****** mass=  -0.914E-26a.u.
   SCALEE = 1.0000    scale energy and forces
   NPACO  =    256;   APACO  = 16.0  distance and # of slots for P.C.
   PSTRESS=    0.0 pullay stress
  Mass of Ions in am
   POMASS =  12.01  1.00 58.93
  Ionic Valenz
   ZVAL   =   4.00  1.00  9.00
  Atomic Wigner-Seitz radii
   RWIGS  =  -1.00 -1.00 -1.00
  virtual crystal weights
   VCA    =   1.00  1.00  1.00
   NELECT =      48.0000    total number of electrons
   NUPDOWN=      -1.0000    fix difference up-down
 DOS related values:
   EMIN   =  10.00;   EMAX   =-10.00  energy-range for DOS
   EFERMI =   0.00
   ISMEAR =     0;   SIGMA  =   0.02  broadening in eV -4-tet -1-fermi 0-gaus
 Electronic relaxation 2 (details)
   IALGO  =     38    algorithm
   LDIAG  =      T    sub-space diagonalisation (order eigenvalues)
   LSUBROT=      T    optimize rotation matrix (better conditioning)
   TURBO    =      0    0=normal 1=particle mesh
   IRESTART =      0    0=no restart 2=restart with 2 vectors
   NREBOOT  =      0    no. of reboots
   NMIN     =      0    reboot dimension
   EREF     =   0.00    reference energy to select bands
   IMIX   =      4    mixing-type and parameters
     AMIX     =   0.40;   BMIX     =  1.00
     AMIX_MAG =   1.60;   BMIX_MAG =  1.00
     AMIN     =   0.10
     WC   =   100.;   INIMIX=   1;  MIXPRE=   1
 Intra band minimization:
   WEIMIN = 0.0000     energy-eigenvalue tresh-hold
   EBREAK =  0.32E-08  absolut break condition
   DEPER  =   0.30     relativ break condition 
   TIME   =   0.40     timestep for ELM
  volume/ion in A,a.u.               =     571.43      3856.19
  Fermi-wavevector in a.u.,A,eV,Ry     =   0.297481  0.562157  1.204043  0.088495
  Thomas-Fermi vector in A             =   1.163009
 
 Write flags
   LWAVE  =      T    write WAVECAR
   LCHARG =      T    write CHGCAR
   LVTOT  =      F    write LOCPOT, total local potential
   LVHAR  =      F    write LOCPOT, Hartree potential only
   LELF   =      F    write electronic localiz. function (ELF)
   LORBIT =     11    0 simple, 1 ext, 2 COOP (PROOUT)

 Dipole corrections
   LMONO  =      F    monopole corrections only (constant potential shift)
   LDIPOL =      F    correct potential (dipole corrections)
   IDIPOL =      0    1-x, 2-y, 3-z, 4-all directions
   EPSILON=  1.0000000 bulk dielectric constant
 Exchange correlation treatment:
   GGA     =    PE    GGA type
   LEXCH   =     8    internal setting for exchange type
   VOSKOWN=      1    Vosko Wilk Nusair interpolation
   LHFCALC =     F    Hartree Fock is set to
   LHFONE  =     F    Hartree Fock one center treatment
   AEXX    =    0.0000 exact exchange contribution
 Linear response parameters
   LEPSILON=     F    determine dielectric tensor
   LRPA    =     F    only Hartree local field effects (RPA)
   LNABLA  =     F    use nabla operator in PAW spheres
   LVEL    =     F    velocity operator in full k-point grid
   LINTERFAST=   F  fast interpolation
   KINTER  =     0    interpolate to denser k-point grid
   CSHIFT  =0.1000    complex shift for real part using Kramers Kronig
   OMEGAMAX=  -1.0    maximum frequency
   RTIME   =    0.100 relaxation time in fs
 Orbital magnetization related:
   ORBITALMAG=     F  switch on orbital magnetization
   LCHIMAG   =     F  perturbation theory with respect to B field
   DQ        =  0.001000  dq finite difference perturbation B field


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