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[·ÖÏí] ÓÃVASP4.6¼ÆËã¾§Ìå¹èÄÜ´øÊµÀý
VASP Version : 4.6 ÔÚ´ËÎÄÖУ¬ÎÒ½«Óù辧Ìå×÷ΪʵÀý£¬À´ËµÃ÷ÈçºÎÓÃVASP4.6À´¼ÆËã¹ÌÌåµÄÄÜ´ø½á¹¹¡£Ê×ÏÈÎÒÃÇÒªÁ˽⾧Ìå¹èµÄ½á¹¹£¬ËüÊÇÁ½¸öǶÌ×ÔÚÒ»ÆðµÄFCC²¼À­·Æ¾§¸ñ£¬Ïà¶ÔµÄλÖÃΪ (a/4,a/4,a/4), ÆäÖÐa=5.4AÊÇ´óµÄÕý·½¾§¸ñµÄ¾§¸ñ³£Êý¡£ÔÚ¼ÆËãÖУ¬ÎÒÃDzÉÓÃFCCµÄÔ­°û£¬Ã¿¸öÔ­°ûÀïÓÐÁ½¸ö¹èÔ­×Ó¡£
VASP¼ÆËãÐèÒªÒÔϵÄËĸöÎļþ£ºINCAR£¨¿ØÖƲÎÊý£©, KPOINTS£¨µ¹¿Õ¼äÈöµã£©, POSCAR£¨Ô­×Ó×ø±ê£©, POTCAR£¨ØÍÊÆÎļþ£©
ΪÁ˼ÆËãÄÜ´ø½á¹¹£¬ÎÒÃÇÊ×ÏÈÒª½øÐÐÒ»´Î×ÔÇ¢¼ÆË㣬µÃµ½ÌåϵÕýÈ·µÄ»ù̬µç×ÓÃܶȡ£È»ºó¹Ì¶¨´ËµçºÉ·Ö²¼£¬¶ÔÓÚÑ¡¶¨µÄÌØÊâµÄKµã½øÒ»²½½øÐзÇ×ÔÇ¢µÄÄÜ´ø¼ÆËã¡£ ÓÐÁËÐèÒªµÄKµãµÄÄÜÁ¿±¾Õ÷Öµ£¬Ò²¾ÍµÃµ½ÁËÎÒÃÇËùÐèÒªµÄÄÜ´ø¡£
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ÒÔÏÂÊÇÓõ½µÄ¸÷¸öÎļþÑù±¾:
INCAR Îļþ£º
SYSTEM = Si
Startparameter for this run:
   NWRITE =      2;   LPETIM=F    write-flag & timer
   PREC   = medium    medium, high low
   ISTART =      0    job   : 0-new  1-cont  2-samecut
   ICHARG =      2   charge: 1-file 2-atom 10-const
   ISPIN  =      1    spin polarized calculation?
Electronic Relaxation 1
   NELM   =     90;   NELMIN=  8; NELMDL= 10     # of ELM steps
   EDIFF  = 0.1E-03   stopping-criterion for ELM
   LREAL  = .FALSE.     real-space projection
Ionic relaxation
   EDIFFG = 0.1E-02   stopping-criterion for IOM
   NSW    =      0    number of steps for IOM
   IBRION =      2    ionic relax: 0-MD 1-quasi-New 2-CG
   ISIF   =      2    stress and relaxation
   POTIM  =   0.10    time-step for ionic-motion
   TEIN   =    0.0    initial temperature
   TEBEG  =    0.0;   TEEND  =   0.0 temperature during run
DOS related values:
   ISMEAR =    0 ;   SIGMA  =   0.10  broadening in eV -4-tet -1-fermi 0-gaus
Electronic relaxation 2 (details)
Write flags
   LWAVE  =      T    write WAVECAR
   LCHARG =      T    write CHGCAR
VASP¸øINCARÎļþÖеĺܶà²ÎÊý¶¼ÉèÖÃÁËĬÈÏÖµ£¬ËùÒÔÈç¹ûÄã¶Ô²ÎÊý²»ÊìϤ£¬¿ÉÒÔÖ±½ÓÓÃĬÈϵIJÎÊýÖµ¡£±ÈÈçÔÚÕâ¸öÀý×ÓÖУ¬ÏÂÃæµÄ±È½Ï¼òµ¥µÄINCAR ÎļþÒ²¿ÉÒÔÍê³ÉÈÎÎñ:
SYSTEM = Si
Startparameter for this run:
   PREC   = medium    medium, high low
   ISTART =      0    job   : 0-new  1-cont  2-samecut
   ICHARG =      2   charge: 1-file 2-atom 10-const
   EDIFF  = 0.1E-03   stopping-criterion for ELM
   NSW    =      0    number of steps for IOM
   IBRION =      2    ionic relax: 0-MD 1-quasi-New 2-CG
   ISIF   =      2    stress and relaxation
KPOINTÎļþ:
ÎÒÃDzÉÓÃ×Ô¶¯µÄMonkhorst-Pack KµãÈöÈ¡·½Ê½¡£¶ÔÓÚÀàËÆÓڹ辧ÌåµÄ°ëµ¼Ìå²ÄÁÏ£¬Í¨³£ 4x4x4 µÄKµãÍø¸ñ¾Í¹»ÁË¡£
Monkhorst Pack
0
Monkhorst Pack
4  4   4
0  0   0

POSCARÎļþ:
ÎÒÃDzÉÓÃFCCÔ­°û£¬ËùÒÔÿ¸öÔ­°û°üº¬Á½¸ö¹èÔ­×Ó
Si
5.38936
0.5 0.5 0.0
0.0 0.5 0.5
0.5 0.0 0.5
2
Cartesian
     0.0000000000000     0.00000000000     0.0000000000000
     0.2500000000000     0.25000000000     0.2500000000000
POTCARÎļþ
²»ÐèÒª½øÐÐÈκθ͝£¬Ö»Ð轫POTCARÎļþ´ÓÕýÈ·µÄØÍÊÆ¿âÀ�±´¹ýÀ´¾ÍÐÐÁË¡£
ÔËÐÐVASP½øÐÐÍêÕâÒ»²½µÄ¼ÆËãºó£¬ÎÒÃÇÓ¦¸ÃµÃµ½ÁË×ÔÇ¢µÄµçºÉ·Ö²¼-CHGCARÎļþ¡£ÎªÁ˵õ½ÄÜ´ø½á¹¹£¬ÎÒÃÇÐèÒª¶ÔÖ¸¶¨µÄKµã½øÐзÇ×ÔÇ¢µÄ¼ÆË㣬Ȼºó½«ÐÅÏ¢»ã×Ü£¬µÃµ½E-KµÄÄÜ´ø¹ØÏµ¡£
²½Öè¶þ.¡ªÔڹ̶¨µç×ÓÃܶȵÄÇé¿öÏ£¬µÃµ½Ñ¡È¡KµãµÄÄÜÁ¿±¾Õ÷Öµ¡£
ÎÒÃÇÐèÒªÐÞ¸ÄÒ»ÏÂINCARÎļþÖеIJ¿·Ö²ÎÊý
   ICHARG =     11   charge: 1-file 2-atom 10-const
ICHARG=11 ±íʾ´ÓCHGCARÖжÁÈëµçºÉ·Ö²¼£¬²¢ÇÒÔÚ¼ÆËãÖб£³Ö²»±ä¡£
ÎÒÃÇ»¹ÐèÒª¸ü¸ÄKPOINTÎļþ£¬À´Ö¸¶¨ÎÒÃǸÐÐËȤµÄijЩ¸ß¶Ô³ÆÐÔµÄKµã¡£ÔÚVASP4.6ÖУ¬Õâ¸ö¿ÉÒÔͨ¹ýLine modeÀ´ÇáÒ×ʵÏÖ.
k-points along high symmetry lines
10  ! 10 intersections
Line-mode
rec
  0   0   0   ! gamma
  0.5 0.5 0   ! X
  0.0 0.0 0   ! gamma
  0.5 0.5 0.5  ! L
ͨ¹ýÖ¸¶¨Line-mode£¬ VASP»á×Ô¶¯ÔÚÆðµãºÍÖÕµãÖ®¼ä²åÈëÖ¸¶¨µÄKµãÊý£¬±ÈÈçÉÏÃæµÄÎļþ¾ÍÊÇÖ¸¶¨VASP¼ÆËãÑØ×ÅGammaµãµ½Xµã£¬ÒÔ¼°Gammaµãµ½LµãµÄKµã£¬Ã¿¸ö·½ÏòÉϸ÷È¡10¸öKµã¡£ÏÂͼÊǹ辧ÌåµÄµÚÒ»²¼ÀïÔ¨Çø£¬±ê³öÁËһЩ¸ß¶Ô³ÆÐԵ㡣

×÷ÈçÉÏÐ޸ĺó£¬ÎÒÃÇÔÙ´ÎÔËÐÐVASP£¬È»ºóÎÒÃǾͿÉÒÔ´ÓOUTCARÎļþ»òÕßEIGENVALÎļþÀïµÃµ½ÐèÒªµÄÿ¸öKµãµÄÄܼ¶ÐÅÏ¢¡£
±ÈÈç˵EIGENVALÎļþ»áÓÐÀàËÆÒÔϵÄÊä³ö
  0.5555556E-01  0.5555556E-01  0.0000000E+00  0.5000000E-01
   1       -6.8356
   2        4.8911
   3        5.0077
   4        5.0079
   5        7.6438
   6        8.0693
   7        8.0694
   8        9.0057
µÚÒ»ÐоÍÊÇKµãµÄµ¹¿Õ¼äµÄ×ø±ê£¬½ÓÏÂÀ´µÄ8ÐиæËßÎÒÃÇÔÚÄǸöKµãÉϵÄ8¸öÄܼ¶¡£Äã¿ÉÒÔͨ¹ýEXCEL»òÕßORIGINÖ®ÀàµÄ»­Í¼Èí¼þ¿ÉÊÓ»¯½á¹û¡£ÓÉÓÚÏÖÔÚÊÖÍ·ÉÏÒѾ­ÓÐÁËÿ¸öKµãµÄÄܼ¶ÐÅÏ¢£¬Ôò½«ÕâЩKµãµÄÄܼ¶Á¬½ÓÆðÀ´¾ÍÊÇÄãËùÐèÒªµÄÄÜ´øÍ¼ÁË¡£ÏÂͼÊÇÓÃÒÔÉϲ½ÖèËãµÃµÄ¹èµÄÄÜ´øÍ¼¡£ÎÒÃÇ¿ÉÒÔ¿´µ½¹è²¢·ÇÊÇÖ±½ÓÄÜ϶µÄ²ÄÁÏ¡£Í¬Ê±£¬ÓÉÓÚÎÒÃÇÓÃÁËLDA£¬ËùÒÔ¹èµÄÄÜ϶ºÍʵÑéÏà±È´ó´ó±»µÍ¹ÀÁË£¨ÊµÑéΪ1.12eV£¬¼ÆËãÖµ~0.6eV£©¡£

[ Last edited by zdhlover on 2009-6-26 at 02:35 ]
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