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d98222003

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[½»Á÷] vc-relax : hydrostatic pressure ÒÑÓÐ1È˲ÎÓë

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?????? fully optimized ????z?? 'P=0.00' ??l?F stress tensor ????? C11 C22 C33 ??g???????  1 kbar
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??????? stress tensor ???? c11 c22 c33 ?@???? compent ??g????§³? 1kbr???_?? hydrostatic pressure
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???????Y???????x?? P=0.00 ??? ??????`????

??????? VASP ?e?—¨ external pressure = 10 ?????????????????
?? QE ???

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2Â¥2014-06-13 09:20:50
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d98222003

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žéºÎÔO¶¨ press = 0.00 µÄ•rºò£¬
×ö vc-relax £¬…sµÃ²»µ½ P = 0.00 µÄ½Y¹û?
ß@•rºòÒªÔ“ÔõüNÞk?
3Â¥2014-06-13 11:53:47
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3Â¥: Originally posted by d98222003 at 2014-06-13 11:53:47
ÄÇÎÒÏëÔÚÕˆ†–һϣ¬
žéºÎÔO¶¨ press = 0.00 µÄ•rºò£¬
×ö vc-relax £¬…sµÃ²»µ½ P = 0.00 µÄ½Y¹û?
ß@•rºòÒªÔ“ÔõüNÞk?

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4Â¥2014-06-13 12:50:42
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d98222003

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ß@ÊÇÎҎׂ€±ÈÝ^ÖØÒªµÄ input parameters

    forc_conv_thr = 2.0d-4
    dt = 15
    mixing_beta = 0.3
    conv_thr =  1.0d-8
&ions
    ion_dynamics = 'damp',
/
&CELL
    cell_dynamics= 'damp-w'
    !press= 0.0
    wmass= 0.0015
    cell_dofree= 'all'

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ÏëÕˆ†–Èç¹ûÊÇʹÓà bfgs £¬ÔÚ×îááµÃµ½ P=x.xx •rºò£¬
¶àÉٵIJî¾àÊÇ´ú±í¿ÉÒÔ½ÓÊܵĔµÖµ? 0.1 kbar ? or

thanks
5Â¥2014-06-13 12:57:55
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