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【求助】幾何優(yōu)化后為何不能進(jìn)行phono計(jì)算呢? 已有3人參與
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我做的金屬釩中摻雜一個(gè)Ta原子,幾何優(yōu)化,能帶計(jì)算等都做了。再進(jìn)行properties進(jìn)行phono計(jì)算時(shí),總是提示錯(cuò)誤,沒法進(jìn)行。錯(cuò)誤信息如下: CASTEP does not yet support the current settings for linear response calculations. To perform a phonons or polarizability calculation: If the current system is an insulator, please uncheck the Metal checkbox on the Setup tab and check the Fix occupancy checkbox on the SCF tab of the CASTEP Electronic Options dialog. 我的肯定是金屬,SCF里面也把“fix occupation”去掉了,空帶的比例設(shè)置為2%(我想是典型的金屬,空帶應(yīng)該很少吧?),也去掉自旋極化了,就是沒法開始計(jì)算。 也選擇 “模守恒勢(shì)”了,最后連“metal”也去掉了...... 請(qǐng)教了。 [ Last edited by 鯉魚飛 on 2010-9-6 at 23:57 ] |

木蟲 (正式寫手)
專家顧問 (著名寫手)
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專家經(jīng)驗(yàn): +174 |
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>>CASTEP does not yet support the current settings for linear response calculations. CASTEP中只能使用模守贗勢(shì)來進(jìn)行DFPT(線性響應(yīng))計(jì)算,如果使用超軟贗勢(shì),請(qǐng)用Finite Displacement的方法。 >>To perform a phonons or polarizability calculation: >>If the current system is an insulator, please uncheck the Metal checkbox on the Setup tab >>and check the Fix occupancy checkbox on the SCF tab of the CASTEP Electronic Options dialog. 如果當(dāng)前體系為絕緣體,請(qǐng)取消Setup選項(xiàng)卡上的Metal,并且選擇Fix Occupancy。 |


金蟲 (小有名氣)
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