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   ndtset   2      
# Set 1 :
  ionmov1   2      
   ntime1   5      
  tolmxf1   5.0d-5  
  natfix1   8      
  iatfix1   1 1 2 3 3 3 3 3
# Set 2 :
dilatmx2   1.5     
getxred2   -1      
  getwfk2   -1      
  ionmov2   2      
   ntime2   10      
optcell2   2      
  tolmxf2   5.0d-5  
strfact2   100     
strprecon   0.1     
  natfix2   8      
  iatfix2   1 1 2 3 3 3 3  3  
#Common input data
  acell   11.1275  22.2447  15.5455 ££Bhorµ¥Î»      
  angdeg  90 90 90
spgroup 55
ntypat   3
  znucl   82 40 8
  natom   8
  typat   1 1 2 3 3 3 3 3
   xred   0.7085  0.1300  0.0000
          0.7117  0.1246  0.5000
          0.2423  0.1242  0.2536
          0.2912  0.1009  0.0000
          0.2761  0.1585  0.5000
          0.0284  0.2606  0.2207
          0.5000  0.0000  0.3022
          0.0000  0.0000  0.2822
  nband   25            
   ecut   8.0           
ecutsm   0.5            
kptopt   1              
  ngkpt   4 4 4         
nshiftk   1            
shiftk   0.5 0.5 0.5   
diemac   3.0           
   iscf   5              
  nstep   60            
tolvrs   1.0d-14

Õ⼸Ìì½øÐÐÁË´ÖdzµÄ³¢ÊԺͷ´Ë¼£¬µ«ÔËÐл¹ÊdzöÏÖÁËÎÊÌ⣺

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DATASET    1 : space group P1 (#  1); Bravais aP (primitive triclinic)

ÁíÍâÊä³öÎļþ»¹ÓÐwarning£º
ntime=    5 was not enough Broyd/MD steps to converge gradients:
  max grad (force/stress) = 2.9312E-02 > tolmxf= 5.0000E-05 ha/bohr (free atoms)
nstep=   60 was not enough SCF cycles to converge;
  potential residual=  4.822E-10 exceeds tolvrs=  1.000E-14
ntime=   10 was not enough Broyd/MD steps to converge gradients:
  max grad (force/stress) = 5.9921E-02 > tolmxf= 5.0000E-05 ha/bohr (free atoms)
²»ÖªµÀÔÚÕâÖÖÇé¿öÏÂÊÇÓ¦¸ÃÔö¼Óntime£¬nstep»¹ÊǽµµÍtolvrs¸útolmxfÄØ?

Çó½ÌÁË¡£¡£¡£

[ Last edited by ·ÇÌìÖ®ÒíÀ¶Óð on 2010-3-29 at 22:19 ]
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[ Last edited by ·ÇÌìÖ®ÒíÀ¶Óð on 2010-3-24 at 16:16 ]
2Â¥2010-03-23 10:10:02
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4Â¥2010-03-26 10:08:21
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lono75

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

·ÇÌìÖ®ÒíÀ¶Óð(½ð±Ò+2):¸ÐлÌÖÂÛ¡£¡£ 2010-03-26 14:59
ÓÐÒ»µã²»Ã÷°×
natom 5
xred
ÔõôÓÐ8¸öÔ­×Ó×ø±ê

#Definition of the unit cell
acell 7.3775 7.3775 7.8570   #relax it
rprim
1.0 0.0 0.0
0.0 1.0 0.0
0.0 0.0 1.0

#Definition of the atoms
natom 5
typat 1 2 3 3 3
xred
0.0 0.0 0.0
0.5 0.5 0.5
0.5 0.5 0.0
0.0 0.5 0.5
0.5 0.0 0.5

[ Last edited by lono75 on 2010-3-26 at 21:49 ]
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5Â¥2010-03-26 13:28:06
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Originally posted by lono75 at 2010-03-26 13:28:06:
ÓÐÒ»µã²»Ã÷°×
natom 5
xred
ÔõôÓÐ8¸öÔ­×Ó×ø±ê

ÎÒ¾õµÃÇ°Ãæ³öµÄÎÊÌâ¿ÉÄÜÀ´×Ô×ø±êÎÊÌ⣬ï¯ËáǦ¾§Ì可îÑ¿óÌåÐÄÁ¢·½½á¹¹£¬¾§°ûÄÚÊÇÓÐ5¸öÔ­×Ó£¬µ«×ø±êÊÇÖ±½Ó²Î¿¼ÎÄÏ×ÉϵÄfractional coordinates¡£ÎÖ¿Ë·òλÖãº
Pb1 (4g) 0.6991 0.1228 0.0000
Pb2 (4h)  0.7056 0.1294 0.5000
Zr (8i) 0.2414 0.1248 0.2486
O1 (4g) 0.2756 0.1560 0.0000
O18 (4g) 0.3011 0.0956 0.5000
O2 (8i) 0.0317 0.2622 0.2798
O3 (4f) 0.0000 0.5000 0.2026
O4 (4e) 0.0000 0.0000 0.2293
ÎÒÒ²ºÜÊÇÒɻ󡣡£°¦¡£¹ÌÌåÎïÀí֪ʶ̫ØÑ·¦¡£¡£¡£
6Â¥2010-03-26 14:58:10
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zxzj05

ÈÙÓþ°æÖ÷ (ÖøÃûдÊÖ)

·ÇÌìÖ®ÒíÀ¶Óð(½ð±Ò+5):·Ç³£¸Ðл~ 2010-03-27 11:13
ÄÇôҲӦ¸ÃÊÇ
natom 8
typat 1 1  2 3 3 3 3 3


Ôö¼Óntime£¬nstep»¹ÊǽµµÍtolvrs¸útolmxf¿ÉÒÔͬʱ½øÐа¡
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7Â¥2010-03-27 01:46:23
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ÒýÓûØÌû:
Originally posted by zxzj05 at 2010-03-27 01:46:23:
ÄÇôҲӦ¸ÃÊÇ
natom 8
typat 1 1  2 3 3 3 3 3


Ôö¼Óntime£¬nstep»¹ÊǽµµÍtolvrs¸útolmxf¿ÉÒÔͬʱ½øÐа¡

¾ÍÊÇ˵ÎÄÏ×ÀïµÄfractional coordinates¿ÉÒÔÖ±½ÓÓò»ÐèÒª»»Ëã¹þ£¿·Ç³£¸Ðл£¬ÎÒÊÔÊÔ~
8Â¥2010-03-27 11:12:51
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wenyun0876

ľ³æ (ÕýʽдÊÖ)

ÀÏľ³æ

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qli0218(½ð±Ò+1):лл 2010-04-01 18:54
²»Ö¸¶¨¿Õ¼äȺµÄ»°£¬¶Ôacell¡¢xred¡¢rprimµÄÒªÇóºÜÑÏ£¬Îó²î´óÒ»µãϵͳ¾Í»áÎóÅлòÎÞ·¨Ê¶±ð¶øÈÏΪÊÇ1.

[ Last edited by wenyun0876 on 2010-3-27 at 14:31 ]
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9Â¥2010-03-27 14:27:11
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¸ù¾Ý´ó¼ÒµÄÒâ¼û£¬¸üÐÂÁËÊäÈëÎļþ£º
natfix   8      
  iatfix   1 1 2 3 3 3 3 3
Ö¸¶¨ÁËspgroup 55
xredÈÔÈ»²ÉÓÃÁ˲ο¼ÎÄÏ×ÀïµÄʵÑéÖµ×ø±ê¡ª¡ªÎÒËùÕҵľ§Ìå½á¹¹cif¸ñʽ¿ÉÒÔÔÚmsµ¼³öÀ´£¬ÓÃд×Ö°å´ò¿ª¾ÍµÃµ½¾§ÌåµÄ½á¹¹Êý¾Ý¡ª¡ªµ«ÊÇlogÀﻹÊdzö´íÁË£º
symatm : WARNING -
  Trouble finding symmetrically equivalent atoms
  Applying inv of symm number  2 to atom number   1  of typat  1
  gives tratom= -7.0850E-01 -1.3000E-01  0.0000E+00.
  This is further away from every atom in crystal than the allowed tolerance.
  The inverse symmetry matrix is -1  0  0
                                  0 -1  0
                                  0  0  1
  and the nonsymmorphic transl. tnons =    0.0000000    0.0000000    0.0000000
  The nearest coordinate differs by -4.170E-01 -2.600E-01  0.000E+00
  for indsym(nearest atom)=    1

  This indicates that when symatm attempts to find atoms symmetrically
  related to a given atom, the nearest candidate is further away than some
  tolerance.  Should check atomic coordinates and symmetry group input data.

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