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fangyongxinxiгæ (ÕýʽдÊÖ)
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fangyongxinxi
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¡ï ¡ï
zdhlover(½ð±Ò+2,VIP+0):¶àл½»Á÷·´À¡ 7-24 21:57
zdhlover(½ð±Ò+2,VIP+0):¶àл½»Á÷·´À¡ 7-24 21:57
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In DFT simulation, we usually require that the force exerting on atoms are less than a certain value (i.e, if the force on each atom reaches a converge criterion). It's meaningless to optimize the structure to make the force be zero for each atom. For the two-probe system, the forces calculated by the NEGF formula is still argued in science and they may be not reliable. The optimization of two-probe system in ATK is indeed converted into the optimization of an equivalent bulk system. The "CalculateAtomicForces()" can not be used to optimize the two-probe system under different bias. |
2Â¥2009-07-20 15:51:38
¡ï ¡ï ¡ï ¡ï ¡ï
fangyongxinxi(½ð±Ò+5,VIP+0):00000 7-25 15:24
fangyongxinxi(½ð±Ò+5,VIP+0):00000 7-25 15:24
| Ìû×ӵĽâÊÍÀ´×ÔATKµÄ¹Ù·½Íø |
3Â¥2009-07-25 15:22:37














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