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forestwolf9291

木虫 (著名写手)

[求助] 关于OUTCAR中lattice vectors的疑惑

电荷密度计算得到的fcc的OUTCAR中
VOLUME and BASIS-vectors are now :
-----------------------------------------------------------------------------
  energy-cutoff  :      250.00
  volume of cell :     6305.05
      direct lattice vectors                 reciprocal lattice vectors
     0.000000000 14.662890000 14.662890000    -0.034099690  0.034099690  0.034099690
    14.662890000  0.000000000 14.662890000     0.034099690 -0.034099690  0.034099690
    14.662890000 14.662890000  0.000000000     0.034099690  0.034099690 -0.034099690
的direct lattice vectors 好大,比侯老师给的symbl里的vectors大一个量级
而 reciprocal lattice vectors又小一个量级,正常吗?


symbl中的 direct lattice vectors                 reciprocal lattice vectors
0.000000000  1.712250000  1.712250000    -0.292013433  0.292013433  0.292013433
1.712250000  0.000000000  1.712250000     0.292013433 -0.292013433  0.292013433
1.712250000  1.712250000  0.000000000     0.292013433  0.292013433 -0.292013433
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hookah

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【答案】应助回帖

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forestwolf9291: 金币+5, ★★★很有帮助 2012-03-22 15:46:08
贴出你计算的POSCAR出来,估计是那里的问题!
2楼2012-03-22 15:35:23
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forestwolf9291

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引用回帖:
2楼: Originally posted by hookah at 2012-03-22 15:35:23:
贴出你计算的POSCAR出来,估计是那里的问题!

Diamond Si
5.40
       -0.000000000000000       2.715350000000000       2.715350000000000
        2.715350000000000      -0.000000000000001       2.715350000000000
        2.715350000000000       2.715350000000000       0.000000000000000
2
Direct
     0.0000000000000000   0.0000000000000000   0.0000000000000000
     0.2499999999999999   1.2500000000000000   0.2499999999999999
哎呀,我菜,刚接触VASP,是不是缩放系数为1啊?5.4显然不对了。
3楼2012-03-22 15:42:38
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