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swuhaizhilan

½ð³æ (СÓÐÃûÆø)

[ÇóÖú] sigma²âÊÔÎÊÌâ ÒÑÓÐ2È˲ÎÓë

Çë´ó¼Ò°ïæ¿´Ò»ÏÂsigma²âÊÔÎÊÌâ°¡£¬²âÊÔ¹ý³Ì²ÎÕպʿµÄ½Ì³Ì£¬smearÈ¡0£¬µÃµ½µÄ½á¹ûÒ»Ö±µ¥µ÷±ä»¯£¬Ó¦¸ÃÑ¡ÄÄÒ»¸öºÏÀí°¡£¬±ê×¼ÊÇɶ£¿ºîÀÏʦ½Ì³ÌÀïֻ˵ÁËÒ»¾ä¡°Ñ¡Ôñentropy T*S EENTROÖµÖÐ×îСµÄËù¶ÔÓ¦µÄSIGMA¡±
0.01   -0.006668
0.02   -0.019231
0.03   -0.033323
0.04   -0.048926
0.05   -0.065022
0.06   -0.081251
0.07   -0.097711
0.08   -0.114861
0.10   -0.152795
0.12   -0.195451
0.14   -0.241477
0.16   -0.289859
0.18   -0.340186
0.20   -0.392413
0.22   -0.446791
0.24   -0.503891
0.26   -0.564442
0.28   -0.629312
0.30   -0.699572


ÏÂÃæÊǽű¾
rm WAVECAR
for i in 0.10 0.12 0.14 0.16 0.18 0.20 0.22 0.24 0.26 0.28 0.30
do
cat > INCAR <<!
SYSTEM = bcc Fe
ENCUT = 500
ISTART = 0
ICHARG = 2
ISMEAR = 0
SIGMA = $i
VOSKOWN=1
NPAR=4
SPIN=2
LREAL=Auto
EDIFFG=-0.02
!
echo " SIGMA = $i eV ";mpirun -n 12 vasp.5.2.12
TS=$(grep "EENTRO" OUTCAR | tail -1 | awk '{printf "%12.6f \n", $5}')
echo $i $TS >> comment
done
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swuhaizhilan: ½ð±Ò+5 2014-04-03 16:42:46
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2Â¥2014-04-03 11:28:38
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mazuju028

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swuhaizhilan: ½ð±Ò+15, ¡ï¡ï¡ïºÜÓаïÖú 2014-04-03 16:43:17
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SIGMA should be as large as possible keeping the difference between the free energy and the total energy (i.e. the term 'entropy T*S') in the OUTCAR file negligible (1 meV/atom).

SIGMAµÄȡֵ¹æÔòΪ£ºÊ¹'entropy T*SÊýֵСÓÚ1 meV/atomµÄ×î´óÖµ¡£
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3Â¥2014-04-03 12:19:17
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swuhaizhilan

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
3Â¥: Originally posted by mazuju028 at 2014-04-03 12:19:17
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SIGMA should be as large as possible keeping the difference between the free energy and the total energy (i.e. the term 'entropy T*S') in the OUTCAR file negligible (1 meV/at ...

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4Â¥2014-04-03 16:38:55
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swuhaizhilan

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by àËÍõandÄÈÄÈ at 2014-04-03 11:28:38
°ÑÖµÔÚÍù´óµ÷£¬ËµÃ÷»¹ÓÐÕÒµ½ºÏÊʵÄSIGMA

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5Â¥2014-04-03 16:42:23
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yaoyuan0711

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