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[·ÖÏí] ÈçºÎÓÃVASP¼ÆËãµ¥¸öÔ­×ÓµÄÄÜÁ¿[ȨÍþ°æ]

ÕâÊÇVASP×÷Õ߸ø³öµÄ½â´ð,ËùÒÔËãÊÇȨÍþÁË.Ô­ÎÄÈçÏÂ:

  The energy zero
  ..
  in VASP all energies are referred to the the reference state for which
  the potential was generated!
  this is in most cases not the real groundstate of the atom
  ..
  to determined the energy of the grounstate of the atom place the atom
  in a larger non cubic box to break initial symmetry (i.e.
  11Ax10Ax9A)
  use the G point only
  INCAR:
  ISPIN = 2 ! spin polarized
  ISMEAR = 0 ; SIGMA = 0.2 ! for small sigma conv. for TM is diff.
  MAGMOM = 2 ! initial magnetic moment
  one should use the energy value energy without entropy of the OUTCAR file
  since this coverges most rapidly to the correct energy for sigma 0
  ..
   
   Ecoh=E_total-n*Eatom

  ´óÔ¼·­ÒëÈçÏÂ:
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  ÎªÁ˵õ½Ô­×ӵĻù̬ÄÜÁ¿£¬½«Ô­×Ó·ÅÔÚÒ»¸ö·ÇÕý·½ÌåµÄ¾§¸ñÄÚ£¬±ÈÈç˵11Ax10Ax9AµÄ¾§¸ñ£¨ÕâÑù×öÊÇΪÁËÏû³ý¼ò²¢£©¡£
  KPOINTSÖ»ÓÃGÈöµã
  ´ó¸ÅµÄINCARÎļþ¿ÉÒÔÈçÏ£º
  ISPIN = 2 ! spin polarized
  ISMEAR = 0 ; SIGMA = 0.2 ! for small sigma conv. for TM is diff.
  MAGMOM = 2 ! initial magnetic moment

  ¼ÆËã½áÊøºó£¬Ó¦¸ÃÓÃOUTCARÖв»º¬entropyµÄÄÇÒ»ÏîÄÜÁ¿£¬ÒòΪËüͨ³£¸ü¿ìµÄÊÕÁ²µ½sigma=0µÄÕýÈ·Öµ¡£×îºó¼ÆËã½áºÏÄܵĹ«Ê½Ó¦¸ÃΪ
   
   Ecoh=E_total-n*Eatom
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