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g.s923

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[交流] 【求助】求助empty bands 设置,请具体说明怎么设置。

6  -3.91144450E+003  3.14508582E+000   7.40592225E-005      20.25  <-- SCF
Warning: There are no empty bands for at least one kpoint and spin; this may
          slow the convergence and/or lead to an inaccurate groundstate.
          If this warning persists, you should consider increasing nextra_bands
          and/or reducing smearing_width in the param file.
          Recommend using nextra_bands of 7 to 15.   
castep对结构进行单点能计算的时候,计算结果总是出现上面的设置,我把计算精度降低了以后,还是这样,各位同仁帮我看看怎么办,设置空带话在那个菜单里面设置,还有就是修改空带参数后对计算结果有没有影响,谢谢!
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zhang668(金币+1):多谢交流 2011-01-09 12:24:55
g.s923(金币+2): 2011-01-09 21:54:12
Empty band 在Electronic——SCF下 ,把数值调大就可以了
2楼2011-01-09 12:12:57
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