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[ÇóÖú] vc-relax ÓÅ»¯rutile TiO2½á¹¹ÎÊÌâ

¸Õ¿ªÊ¼ÓÃQE£¬ ¾ÍÏëÏÈ´ÓÒ»¸ö¼òµ¥µÄÌåϵ¿ªÊ¼Ñ§Ï°£¬¾ÍÏÈѧ×ÅÓÃvc-relaxÓÅ»¯TiO2½á¹¹£¬·¢ÏÖ×îºóµÄ¾§¸ñ³£ÊýµÄÓÅ»¯½á¹ûÑÏÖØ±ÈÕý³£Öµ±äС¡£Ð¡ÁË´ó¸Å15%£¡£¡£¡ ÎÒ»»¹ý²»Í¬µÄpotential£¬ £¨GGA-PBE, PAW-PBE µÈ£©½á¹û¶¼´óͬСÒì¡£ºÜÀ§»ó£¬Çó¸ßÈËÖ¸µã¡£ÏÂÃæÊÇinput file¡££¨ËäÈ»¹ý³ÌÖÐÎÒÒ²³¢ÊÔןĹýºÃ¶à²ÎÊý£¬ µ«½á¹û¼¸ºõ¶¼Ã»Ì«´ó¸Ä½ø¡£ËùÒÔ¾ÍÌù³öÏÂÃæµÄÒ»¸öinput file)
&control
calculation='vc-relax',
pseudo_dir = '~/pslib',
outdir='./',
prefix='TiO2',
&wf_collect=.true.,
wfcdir='./',
tprnfor = .true.
&restart==================
   &restart_mode='from_scratch'
  &restart_mode='restart'

/
&system
ibrav=6, celldm(1)=8.73, celldm(3)=0.643,
nat=6, ntyp=2,
occupations='smearing', smearing='mp', degauss=0.05
ecutwfc=15.0,
/


&electrons
diagonalization='david'
mixing_beta=0.7
conv_thr=1.0d-5
/
&IONS
ion_dynamics='bfgs',
/

&cell
cell_dynamics='bfgs',
cell_dofree=xyz,
cell_factor=3.0D0
/

ATOMIC_SPECIES
Ti   47.88  Ti.pbe-spn-kjpaw_psl.0.2.3.UPF
O    16.0   O.pbe-n-kjpaw_psl.0.1.UPF

ATOMIC_POSITIONS crystal
Ti 0.0 0.0 0.0
Ti 0.5 0.5 0.5
O  0.3053   0.3053   0.0
O  0.6947   0.6947   0.0
O  0.8053   0.1947   0.5
O  0.1947   0.8053   0.5

K_POINTS automatic
6 6 6   0 0 0

ÓÅ»¯µÄ½á¹û´ó¸ÅÊÇ£º
CELL_PARAMETERS (alat=  8.73000000)
   0.858842467   0.000000000   0.000000000
   0.000000000   0.858842467   0.000000000
   0.000000000   0.000000000   0.569949709

ATOMIC_POSITIONS (crystal)
Ti       0.000000000   0.000000000   0.000000000
Ti       0.500000000   0.500000000   0.500000000
O        0.298652764   0.298652764   0.000000000
O        0.701347236   0.701347236   0.000000000
O        0.798569657   0.201430343   0.500000000
O        0.201430343   0.798569657   0.500000000
End final coordinates

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leoaqu: ½ð±Ò+10, ¡ï¡ï¡ïºÜÓаïÖú, лл 2013-01-13 18:59:21
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CODE:
&system
   ibrav=6 ,
   celldm(1)=8.73 ,
   celldm(3)=0.643 ,
   nat=6 ,
   ntyp=2 ,
   occupations='fixed' ,
   ecutwfc = 55 ,
   ecutrho = 550 ,
/

ÒÔ¼°µÃµ½µÄÏàÓ¦½á¹û£º
ÒýÓûØÌû:
CELL_PARAMETERS (alat=  8.73000000)
   1.004793478   0.000000138   0.000000000
   0.000000138   1.004793478   0.000000000
   0.000000000   0.000000000   0.641970536

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