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[求助]
K點(diǎn)取值有問(wèn)題
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大俠,我現(xiàn)在VASP計(jì)算中出現(xiàn)了一個(gè)問(wèn)題,我的六方WO3原胞(a=b=7.298, c=3.899),K點(diǎn)取的是7*7*15,因?yàn)橛?jì)算資源有限,我建立超晶胞(1*2*2),此時(shí)我用超晶胞進(jìn)行弛豫時(shí)(K點(diǎn)取7*3*7),就出現(xiàn)了這個(gè)問(wèn)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(diǎn)取的有問(wèn)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 |
銀蟲(chóng) (初入文壇)
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我也遇到相同的問(wèn)題,弛豫時(shí)k點(diǎn)5X5X2,計(jì)算沒(méi)問(wèn)題,但是計(jì)算靜態(tài)時(shí)k點(diǎn)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(gè)原子,繼續(xù)弛豫時(shí)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(gè)問(wèn)題解決了沒(méi)有,求指教,感覺(jué)不像是k點(diǎn)的問(wèn)題,因?yàn)槲抑耙彩沁@樣劃分,但是沒(méi)出現(xiàn)問(wèn)題。 |
金蟲(chóng) (正式寫手)
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