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µÚÒ»¸öÎıêÌ⣺ ´ÓËûÌáʾµÄ¹Ø¼ü´ÊÀ´¿´ NEXTRA_BANDS This keywords controls the number of extra bands in addition to the number of occupied bands. These extra bands are necessary for metals or finite temperature insulators. The default value for this parameter is 0. SMEARING_WIDTH This keyword determines the width of the Fermi-surface smearing if the system is being treated as a metal. ÒòΪ²»ÖªµÀÄãµÄ¾ßÌåÎïÖÊ£¬ËùÒÔÎҲ²âÓÐÁ½ÖÖÇé¿ö£¬Ò»ÊÇÄãµÄ½á¹¹ÓÐÎÊÌâ¡£¶þÊÇÒòΪÄãµÄ½á¹¹µÄÌØÊâÐÔ£¬ËùÒÔÄãĬÈϵÄÉèÖüÆËãÊDz»¿ÉÐŵ쬾ÍÈçÌáʾ¶øÑÔ¡£Èç¹ûÄãµÄ½á¹¹Ã»ÎÊÌ⣬Äã¿ÉÒÔ°´ÕÕÌáʾµ÷ÕûһϲÎÊýËãÒ»Ëã¡£ .paramΪºó׺ÃûµÄÎļþÀÓÐÒÔÉÏÁ½¸ö²ÎÊý£¬Äã´ò¿ªµ÷Õûһϣ¬È»ºó¼ÆËãÄãµ÷ÕûºóµÄÎļþ£¬¾ÍÊǵãFiles£¬È»ºóRun Files¡£Èç¹ûÄãµ÷ÕûºóûÓÐÌáʾ£¬¾Í˵Ã÷ÄãµÄ½á¹¹ÐèÒªµ÷Õû²ÎÊý¡£ µÚ¶þ¸öÎÊÌâ Ô×ÓÔÚ±íÃæÎü¸½¾ÍÄÇô¼¸ÖÖλÖã¬Äã¶¼Òª¼ÆËãÊÔÒ»ÊÔ£¬ÕÒµ½ÄÜÁ¿×îСµÄÎü¸½Î»Öá£ÖÁÓÚÎü¸½Ô×Ó·ÅÔÚʲôλÖã¬Äã¿ÉÒÔͨ¹ýÔ×Ó°ë¾¶¼ÆË㣬ÕâÑù¼ÆËãÄܼӿìÄãµÄÊÕÁ²ËÙ¶È¡£Èç¹û²»ÊǼÆË㣬¶øÊÇ´óÖ·ŸöλÖã¬ÊÕÁ²¾ÍºÍÄã·ÅµÄλÖÃÓйأ¬Èç¹û·ÅµÄλÖúܽӽüÊÕÁ²Î»Ö㬾ͻáºÜ¿ìÊÕÁ²¡£ÒòΪÕâÕâÁ½ÖÖ·½·¨×îÖյļÆËãÊÕÁ²ºó£¬ËûÃǵÄλÖÃÓ¦¸ÃÊÇÒ»ÑùµÄ£¨Îó²î·¶Î§Ö®ÄÚ£©¡£ÖÁÓÚ¼ÆËã±íÃæÎü¸½total energyµÄʱºò£¬ÊÇÑ¡Ôñ"optimized cell"»¹Êǹ̶¨±íÃæ£¬ÎÒ¿´ÎÄÏ×ÉÏÕâÁ½ÖÖ¶¼ÓУ¬ÒòΪÕâÒªºÍÄã¼ÆËãµÄÌåϵÓйأ¬Èç¹ûÌåϵ²»ÊǺܴó£¬Ó¦¸ÃÑ¡Ôñoptimized cell£¬ÕâÑù¸ü½üÏÖʵÑéÇé¿ö¡£ µÚÈý¸öÎÊÌ⣬initial SpinÉèÖã¬MSÌṩÁ½ÖÖ·½·¨£¬Äã¿ÉÒԲο¼¡£ There are two ways of defining the initial magnetic configuration: either specify the total magnetic moment per unit cell, which gets uniformly distributed over the space, or provide detailed information on the absolute values and direction (up or down) of the spins for each atom in the unit cell. The former method can be used for relatively simple systems where only two solutions are expected (magnetic and non-magnetic). The latter method, which specifies the spin state of the atoms in the system, is more general and gives much more flexibility. It is possible to set up ferromagnetic, ferrimagnetic, or antiferromagnetic calculations to get different starting spin arrangements. ²»¹ýÎҼǵúÃÏñËûÃǹ«Ë¾Ëµ¹ý£¬Ò»°ãformal spin¶¼¿ÉÒÔ£¬³ý·ÇÊǼÆËãһЩ´ÅÐÔÎïÖÊ£¬±ÈÈçFe¡¢CoÕâÖÖ¡£Ä¿Ç°ÎÒ¶¼ÊÇĬÈÏ¡£ÖÁÓÚcharge¾ÍÊÇϵͳµÄµçºÉ£¬Èç¹û²»´øµç¾ÍÊÇ0£¬Êµ¼ÊÊǶàÉÙ¾ÍÊǶàÉÙ¡£ ×Ô¼ºµÄÒ»µã×¾¼û£¬½ö¹©²Î¿¼ |

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