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fanarsenal

木虫 (正式写手)

[求助] 计算DOS,DOSCAR中总态密度部分居然积分的数值更小些?求高手解答。

我的INCAR
SYSTEM = vacuum
ISTART = 1
ICHARG = 11
ENCUT = 400
NELM = 400
NELMIN = 8
NSIM = 4
EDIFF = 1E-06
ISIF = 2
ISMEAR = -5
SIGMA = 0.2
NEDOS = 1001
NPAR = 1
RWIGS = 1.302 1.455
LVTOT = .TRUE.
LORBIT = 1

得到的DOSCAR非常奇怪, 前面0 的部分我少粘了几行。
     -8.896  0.0000E+00  0.0000E+00
     -8.882  0.0000E+00  0.0000E+00
     -8.868  0.0000E+00  0.0000E+00
     -8.855  0.0000E+00  0.0000E+00
     -8.841  0.0000E+00  0.0000E+00
     -8.827  0.0000E+00  0.0000E+00
     -8.813  0.0000E+00  0.0000E+00
     -8.799  0.0000E+00  0.0000E+00
     -8.785  0.3141E-01  0.7643E-04
     -8.772  0.1206E+00  0.1127E-02
     -8.758  0.2098E+00  0.3412E-02
     -8.744  0.2990E+00  0.6930E-02
     -8.730  0.3883E+00  0.1168E-01
     -8.716  0.4775E+00  0.1767E-01
     -8.702  0.5667E+00  0.2489E-01
     -8.689  0.6559E+00  0.3334E-01
     -8.675  0.7451E+00  0.4302E-01
     -8.661  0.8343E+00  0.5394E-01
     -8.647  0.9235E+00  0.6609E-01
     -8.633  0.1013E+01  0.7948E-01
     -8.619  0.1102E+01  0.9410E-01
     -8.606  0.1191E+01  0.1100E+00
可以看到积分态密度反而更小,而且不是小一点儿,从来没遇到这样的情况,求高手解释为什么。
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