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IBZKPT file, tetrahedron method and tetrahedron connection tables

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5.6 P40
The file IBZKPT is compatible with the KPOINTS file and is generated if the automatic k-mesh generation is selected in the file KPOINTS. It contains the k-point coordinates and weights (and if the tetrahedron method was selected additional tetrahedron connection tables) in the "Entering all k-points explicity " format used for providing k-points 'by hand'. This file can also be generated with the external tool:
> kpoints
IBZKPT may be coppied to the file KPOINTS to save time, if one KPOINTS set is used several times

9.3 P131
The first step is to provide a KPOINTS file in the  "entering all k-point cooridinates explicity"-format. If you want to calculate a DOS this file must also contain connection lists for tetrahedra (the tetrahedron method is the only probably the most usefull approach to calculate a DOS because it is parameter-free).

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(2)k-pointµÄweightsÊÇʲôÒâ˼?ÔÚDOSºÍBANDSTRUCTURE¼ÆËãÖÐÓÐʲôÓÃ?
(3)tetrahedron method Ö¸µÄÊÇISMEAR = -5?ÒªËãDOSºÍBandstructure,±ØÐëISMEAR = -5?
(4)connection lists for tetrahedraÊÇʲôÒâ˼?tetrahedron connection tablesÊÇʲôÒâ˼?

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