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ÔÚvaspÊÖ²á8.6 Number of k-points , and method for smearing ÖÐ Even with this scheme the number of k-points remains relatively large. For insulators 100 k-points/per atom in the full Brillouin zone are generally sufficient to reduce the energy error to less than 10 meV. Metals require approximately 1000 k-points/per atom for the same accuracy. For problematic cases (transition metals with a steep DOS at the Fermi-level) it might be necessary to increase the number of k-points up to 5000/per atom, which usually reduces the error to less than 1 meV per atom. ÕâÀïµÄÿ¸öÔ×Ó100¸ökµã»òÕß1000¸ökµãÊÇʲôÒâ˼£¿Ó¦¸ÃÔõôÀí½âÄØ£¿ |
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