24小时热门版块排行榜    

查看: 3641  |  回复: 15
当前主题已经存档。
当前只显示满足指定条件的回帖,点击这里查看本话题的所有回帖

阿勇

铜虫 (小有名气)

[交流] 【求助】怎么在VASP中设置NEB方法的参数

想做一个表面扩散的势垒,想用NEB方法计算,但不知怎么设置INCAR和POSCAR 参数。。。
回复此楼
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

cbFeng200881

金虫 (著名写手)

★
csfn(金币+1,VIP+0):3x 6-6 18:53
vasptst 官方网站
3楼2009-06-06 00:20:01
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
查看全部 16 个回答

y1ding

铁杆木虫 (著名写手)

★ ★ ★
小木虫(金币+0.5):给个红包,谢谢回帖交流
spur(金币+2,VIP+0): 3Q!!谢谢帮助! 6-5 18:58
6.55 Elastic band method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

VASP说明书上 6.55 83页
2楼2009-06-05 16:37:26
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

fegg7502

荣誉版主 (知名作家)

无

优秀版主

★ ★ ★ ★ ★
csfn(金币+5,VIP+0):3x 6-6 18:54
SYSTEM = Al2O3
# Startparameter for this Run:
#  NWRITE = 2         !  how much will be written to the file OUTCAR ('verbosity flag')verbosity write-flag
   ISTART = 0         !  0-new 1-cont 2-samecut job,/if WAVECAR exists 1 restart with constant energy cut-off'/2 restart with constant basis set': Continuation job -- read wave functions from the file WAVECAR
#  ISPIN  = 2         !  1-no, 2-yes
   INIWAV = 1         !  0-jellium WF; 1-random numbers (recomm.)
   ICHARG = 2         !  ISTART = 0 2, else 0
#  WEIMIN = 0.001     !  for dynamic calculation IBRION >=0/for static calculation IBRION =-1
   dynamic:
  LPLANE = .TRUE.
  NPAR = 8

#  Electronic Relaxation
   ENCUT = 350        !  Ecut (eV)
   PREC = High    !  precission: #Low for MD/Medium for optimization/Accurate for TS and frequence
   EDIFF = 1.E-05     !  stopping-criterion for electronic upd.
   LREAL = Auto       !  .FALSE. projection done in reciprocal space/.TRUE. real space/On or O real space, projection operators re-optimized/Auto real space,fuly auto opti of projection operators  no user interference required
   NELMIN = 5         !  the minimum number of electronic SC steps
#  NELM = 150         !  max. # of electronic SC steps
#  NELMDL = 10        !  # of non-consistent steps at the beggining:>0 or <0
#  LDIAG = .TURE.     !  LDIAG = .TRUE. or .FALSE. (perform sub space rotation)
   ALGO = Fast
#  IALGO  =  48       !  algorithm: use only 8 (CG) or 48 (RMM-DIIS)
   GGA = 91           !  xc-type: PB, PW (86), LM, 91 (Perdew-Wang 91)
   VOSKOWN = 1        !  it is desirable to use this interpolation for single atom or whenever the PW91 functional is applied.
   ISMEAR = 0         !  part. occup.:-5 Blochl,-4 tet,-3,-2,-1-fermi,0-Gauss,>0MP broadening in eV -4 tet -1-fermi 0-gauss
   SIGMA = 0.2        !  
#  IWAVPR = 12        !  if  IBRION=0 (MD) 2,12/if IBRION=1,2 (relaxation)         1,11/else (static calculation) 0


# Ionic relaxation   
   EDIFFG = -0.05     !  break condition for the ionic relaxation loop/Default :EDIFF*10/negative ,will stop if all forces are smaller than [EDIFFG]
   IBRION = 2         !  ionic relax: -1:no move; 0-MD;1-Newton;2-CG;3-damped;4-?
   NSW = 400          !  steps for ionic update (def:0)
   ISIF = 2           !  calc.stress:0-no;1-tr;2-7 yes; 3-change vol.4-change shape
   POTIM = 0.3

# TS flags
   IMAGES = 8
#   NFREE = 2
   SPRING = -5
   ENERGY1 = -589.41939
   ENERGY2 = -590.393218


# Write flags
   LWAVE = .False.     !  write WAVECAR
   LCHARG = .False.    !  write CHGCAR and CHG
   LVTOT = .False.     !  write the local potential LOCPOT
   LELF = .False.      !create ELFCAR file
   LORBIT = .F.        !create PROOUT

# Others
#  APACO = 10.0       !distance for P.C.

   AMIX = 0.2
   BMIX = 0.0001
   AMIX_MAG = 0.8
   BMIX_MAG = 0.0001
心诚意正,方可始终;身无苦灭,永登光明。
5楼2009-06-06 16:41:00
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

stractor

金虫 (著名写手)

★ ★ ★ ★ ★ ★
小木虫(金币+0.5):给个红包,谢谢回帖交流
csfn(金币+5,VIP+0):3x 6-6 18:54
用VASP做NBE计算,主要有这几个参数:
image=N, 初态与末态之间的image个数,SPRING=弹性恢复系数,用默认值-5就可以了,单位是ev/A^2,IBRION=1或3。在当前工作目录下要建N+2个子目录00,01,...,N+1.每个目录包括一个POSCAR,初态,末态的POSCAR分别放在00,N+1目录下面。中间的N个POSCAR需要在初态和末态之间通过线性插值得到。
VASP手册有Elastic band method这个小节。
6楼2009-06-06 18:32:18
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
普通表情 龙 兔 虎 猫 高级回复 (可上传附件)
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[博后之家] 售SCI文章,我:8O.5.5.1O.54,科目全,可十急 +4 IDs3scOF0tjC 2026-09-28 4/200 2026-09-29 19:27 by cqwQDCxMcL3I
[找工作] 售SCI一区T0P文章,我:8.O.55.1.O54,科目全,可伽急 +4 ZYXdhzDAy9ZX 2026-09-28 4/200 2026-09-29 16:54 by yCO1Ll7aHtsw
[考博] 售SCI一区文章,我:8.O.55.1.O.54,科目齐全,可伽急 +4 ZYXdhzDAy9ZX 2026-09-28 4/200 2026-09-29 16:47 by yCO1Ll7aHtsw
[考研] 售SCI一区T0P文章,我:8.O.55.1.O.54,科目齐全,可+急 +3 ZYXdhzDAy9ZX 2026-09-28 4/200 2026-09-29 16:37 by etmYJ6d2rquH
[硕博家园] 售SCI文章,我:8O.5.5.1O.54,科目全,可十急 +3 ZYXdhzDAy9ZX 2026-09-28 3/150 2026-09-29 16:03 by etmYJ6d2rquH
[考博] 售一区SCI文章T0P,我:8O.551.O54,科目全,可十急 +3 tqUTOxClQUMF 2026-09-28 3/150 2026-09-29 15:46 by etmYJ6d2rquH
[博后之家] 售SCI文章,我:8O5.5.1.O.54,科目齐全,可+急 +3 tqUTOxClQUMF 2026-09-28 3/150 2026-09-29 15:04 by etmYJ6d2rquH
[公派出国] 售SCI一区T0P文章,我:8.O.55.1.O54,科目全,可伽急 +3 tqUTOxClQUMF 2026-09-28 3/150 2026-09-29 14:58 by etmYJ6d2rquH
[硕博家园] 售SCI一区T0P文章,我:8O.55.1.O.5.4,科目齐全,可+急 +3 GDBe8tDZqE8z 2026-09-28 3/150 2026-09-29 14:30 by etmYJ6d2rquH
[找工作] 售SCI一区文章,我:8.O.55.1.O.54,科目齐全,可伽急 +6 IDs3scOF0tjC 2026-09-28 6/300 2026-09-29 14:13 by etmYJ6d2rquH
[博后之家] 售SCI一区T0P文章,我:8.O.55.1.O54,科目全,可伽急 +6 IDs3scOF0tjC 2026-09-28 7/350 2026-09-29 14:07 by etmYJ6d2rquH
[公派出国] 售一区SCI文章T0P,我:8O.551.O54,科目全,可十急 +4 IDs3scOF0tjC 2026-09-28 5/250 2026-09-29 13:50 by etmYJ6d2rquH
[教师之家] 某top大学教授说“能够在市场中兑现的能力才是真能力”无比同意! +8 zju2000 2026-09-26 9/450 2026-09-29 13:47 by ahsoarli
[教师之家] 售一区SCI文章T0P,我:8O.551.O54,科目全,可十急 +4 GDBe8tDZqE8z 2026-09-28 4/200 2026-09-29 09:49 by JzYBbHIXWSrW
[考研] 售SCI一区文章,我:8.O.551.O.5.4,科目全,可伽急 +3 ZYXdhzDAy9ZX 2026-09-28 3/150 2026-09-29 06:42 by ZvyPK8n6Nfki
[硕博家园] 售SCI一区T0P文章,我:8.O.55.1.O.54,科目齐全,可+急 +3 tqUTOxClQUMF 2026-09-28 3/150 2026-09-28 23:46 by b8fCuTHqckEt
[硕博家园] 售SCI一区T0P文章,我:8.O.55.1.O.54,科目齐全,可+急 +3 CfXuS1rDhLYN 2026-09-28 4/200 2026-09-28 22:55 by ez6fGg9abYaj
[找工作] 售SCI文章,我:8O.5.5.1O.54,科目全,可十急 +3 IDs3scOF0tjC 2026-09-28 5/250 2026-09-28 22:32 by ez6fGg9abYaj
[考博] 售SCI文章,我:8O.5.5.1O.54,科目全,可十急 +3 IDs3scOF0tjC 2026-09-28 6/300 2026-09-28 22:15 by ez6fGg9abYaj
[论文投稿] 售SCI文章,我:8O5.5.1.O.54,科目齐全,可+急 +3 CfXuS1rDhLYN 2026-09-28 3/150 2026-09-28 19:08 by 9lS3ad5oOymn
信息提示
请填处理意见