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yuhong2891新蟲(chóng) (小有名氣)
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[交流]
【求助】Dmol計(jì)算能帶時(shí)的k點(diǎn)設(shè)置問(wèn)題 已有1人參與
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Dmol中計(jì)算能帶時(shí),k點(diǎn)系統(tǒng)默認(rèn)最高設(shè)置fine,還是不夠多,怎么樣進(jìn)一步增加k點(diǎn)數(shù)?我看有一篇帖子中說(shuō)要改變kpoint文件,高手能否把計(jì)算時(shí)的步驟以及改變k點(diǎn)的方法說(shuō)的詳細(xì)一點(diǎn)? 另外,結(jié)構(gòu)優(yōu)化時(shí)用的是spin-unrestricted,那么能帶計(jì)算時(shí)應(yīng)如何選擇此項(xiàng)設(shè)置?對(duì)結(jié)果有何影響? |
鐵桿木蟲(chóng) (著名寫(xiě)手)

金蟲(chóng) (正式寫(xiě)手)
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很簡(jiǎn)單啊。 貼一個(gè)給你示范一下: symmetry unique # do not attempt to symmetrize these kpoints $reciprocal sampling points and weights 0.0000000000 0.0000000000 0.0000000000 0.04761904762 0.0000000000 0.0000000000 0.0250000000 0.04761904762 0.0000000000 0.0000000000 0.0500000000 0.04761904762 0.0000000000 0.0000000000 0.0750000000 0.04761904762 0.0000000000 0.0000000000 0.1000000000 0.04761904762 0.0000000000 0.0000000000 0.1250000000 0.04761904762 0.0000000000 0.0000000000 0.1500000000 0.04761904762 0.0000000000 0.0000000000 0.1750000000 0.04761904762 0.0000000000 0.0000000000 0.2000000000 0.04761904762 0.0000000000 0.0000000000 0.2250000000 0.04761904762 0.0000000000 0.0000000000 0.2500000000 0.04761904762 0.0000000000 0.0000000000 0.2750000000 0.04761904762 0.0000000000 0.0000000000 0.3000000000 0.04761904762 0.0000000000 0.0000000000 0.3250000000 0.04761904762 0.0000000000 0.0000000000 0.3500000000 0.04761904762 0.0000000000 0.0000000000 0.3750000000 0.04761904762 0.0000000000 0.0000000000 0.4000000000 0.04761904762 0.0000000000 0.0000000000 0.4250000000 0.04761904762 0.0000000000 0.0000000000 0.4500000000 0.04761904762 0.0000000000 0.0000000000 0.4750000000 0.04761904762 0.0000000000 0.0000000000 0.5000000000 0.04761904762 $end 其中前面的文字都是一樣的。數(shù)字部分,前三列表示的是計(jì)算取的K 點(diǎn)的分?jǐn)?shù)坐標(biāo),最后一列是相應(yīng)的權(quán)重。 |

金蟲(chóng) (正式寫(xiě)手)

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