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[求助]
K點取值有問題
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大俠,我現(xiàn)在VASP計算中出現(xiàn)了一個問題,我的六方WO3原胞(a=b=7.298, c=3.899),K點取的是7*7*15,因為計算資源有限,我建立超晶胞(1*2*2),此時我用超晶胞進(jìn)行弛豫時(K點取7*3*7),就出現(xiàn)了這個問題:Reciprocal lattice and k-lattice belong to different class of lattices. Often results are still useful... 是我的超晶胞K點取的有問題么? 原胞: 6.320253396818831 -3.649000000000001 0.000000000000000 0.000000000000000 7.297999999999999 0.000000000000000 0.000000000000000 0.000000000000000 3.899000000000000 超晶胞: 6.454729821518482 -3.726639999999998 0.000000000000000 0.000000000000000 14.906560000000001 0.000000000000000 0.000000000000000 0.000000000000000 7.666599999999999 |
金蟲 (正式寫手)
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我也遇到相同的問題,弛豫時k點5X5X2,計算沒問題,但是計算靜態(tài)時k點改成9x9x3就出現(xiàn)Reciprocal lattice and k-lattice belong to different class of lattices. Often results are still useful... 然后因課題需要取出3個原子,繼續(xù)弛豫時還是5x5x2,但是結(jié)果也出現(xiàn)了Reciprocal lattice and k-lattice belong to different class of lattices. Often results are still useful... 不知道您這個問題解決了沒有,求指教,感覺不像是k點的問題,因為我之前也是這樣劃分,但是沒出現(xiàn)問題。 |
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