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1. Pseudopotential:ÔÚK-S·½³ÌÖÐÊÆÄÜVÉ϶¯ÊÖ½Å
2. Augmented Plane Wave:ÔÚ»ù×éÉ϶¯ÊÖ½Å
3. Projector Augmented Plane Wave

µÚÒ»ÖÖPseudopotential²»ËµÁË,¾ÍÊǽüºËÇøÓòµÄ-q/r»»µô,»»³ÉPseudopotential
µÚ¶þÖÖÊǰÑAugmented Plane Wave, Æ½Ãæ²¨¶Ô½üºËÇøÓò±íÏÖ²»ºÃ,һЩ¾ÖÓò»ù×é¶Ô½üºËÇøÓò±íÏֱȽϺÃ,ÓÚÊÇÁ½Õß×éºÏÒ»ÏÂ,½üºËÇøÓòÓþÖÓò»ù×é,Ö®ÍâµÄÇøÓòÓÃÆ½Ã沨»ù×é.Èç´Ë´ïµ½È«µç×Ó¼ÆËã. ÔÚ´¦ÀíÁ½¸ö»ù×éñîºÏÎÊÌâʱ,ÓÐÁËLinearized Augmented Plane Wave method,LAPWÓÐÁ˺ÍPseudopotential²î²»¶àµÄЧÂÊ
µÚÈýÖÖProjector Augmented Plane Wave,ÎÄÏ×ÖÐ˵ºÍµÚ¶þÖֲ¶à,ÎÒµÄÀí½âÊÇ:ÈçÉÏËùÊö,Çó½âK-S·½³Ìʱºò½øÐÐÁËÒ»´ÎͶӰ,¼´½«²¨º¯ÊýͶӰµ½Æ½Ã沨»ù×éÉÏÇó½â¡£ÕâÀïΪÁ˼õÉÙÆ½Ã沨ÊýÁ¿£¬ÔÙÕâÖ®¼ä¼ÓÒ»²ãͶӰ¡£ÕâÀïÖмä¼ÐµÄÕâÒ»²ãͶӰËã×Ó¿ÉÒÔ°ÑÎïÀíµÄ²¨º¯Êý£¨½üºËÇøÓòÆð·üºÜ´ó£¬ÓÐÁãÇøÓò£©Í¶Ó°³ÉÒ»¸ö±È½Ïƽ»¬£¬ÊÊºÏÆ½Ã沨»ù×éÇó½âµÄ²¨º¯Êý£¨¼õÉÙÆ½Ã沨ÊýÁ¿£©¡£ÀûÓÃÕâ¸ö¼ÐÔÚÖмäµÄͶӰËã×Ó¿ÉÒÔÀ´»ØÍ¶Ó°Æ½»¬µÄ²¨º¯ÊýºÍÎïÀíµÄ²¨º¯Êý£¬ËùÒÔÐèÒªµÄÎïÀíÁ¿¿ÉÒԵóö¡£

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[1] PRBÉÏPAW·½·¨µÄԭʼÎÄÏײ»ÈÝÒ׿´¶®£¬¸½ÉÏһƪBLÖCHLµÄ±È½ÏÈÝÒ׿´¶®µÄÎÄÕ¡£ÆäÖÐnodal areasÒâ˼Ϊareas where wave-function equal 0.
Blöchl, Peter E., Clemens J. Först, and Johannes Schimpl. "Projector augmented wave method: ab initio molecular dynamics with full wave functions." Bulletin of Materials Science 26.1 (2003): 33-41.
[2] PRBµÄԭʼÎÄÏ×£º
Blöchl, Peter E. "Projector augmented-wave method." Physical Review B 50.24 (1994): 17953.
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