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SYSTEM =ZnO
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EDIFFG =-0.01
ISMEAR=0
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NGX=62
NGY=62
NGZ=66
ISPIN=2
IBRION = 2
ISIF   =3
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UGa+UN=UGaN(bulk),ÖеÄUGaN(bulk)¾ÍÊÇÉú³Éìʰɣ¿
ÔÚPRB 63,075205ÕâÆªÎÄÕÂÖÐÓÐÕâÑùµÄ½éÉÜUnder thermal equilibrium
UZn+UO=DHZnO , where DHZnO is the formation enthalpy
of ZnO£¬ÔÚJournal of Crystal Growth 287 (2006) 58¨C65ÖÐÔòÊÇÕâÑùÃèÊöµÄThe upper bounds defined above also lead to lower
bounds by using the thermodynamic stability condition for
ZnO,UZn+UO = EtotZnO, (3)where EtotZnO is the total energy of a two-atom unit of bulk ZnO.
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