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The-One金蟲 (正式寫手)
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[求助]
castep中怎么查看K點(diǎn)數(shù)目和能帶數(shù)
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請教大家兩個問題: 1. castep中怎么查看K點(diǎn)數(shù)目和能帶數(shù)?應(yīng)該從哪個文件看? 2.用GGA+U時,勾了fix occupancy,結(jié)果中出現(xiàn)了WARNING: LDA+U run with fixed occupancies: Results can be inaccurate or even wrong,這是怎么回事呢? +---------------- MEMORY AND SCRATCH DISK ESTIMATES PER NODE -----------------+ | Memory Disk | | Model and support data 101.8 MB 0.0 MB | | Electronic energy minimisation requirements 62.6 MB 26.9 MB | | ----------------------------- | | Approx. total storage required per node 164.5 MB 26.9 MB | | | | Requirements will fluctuate during execution and may exceed these estimates | +-----------------------------------------------------------------------------+ WARNING: LDA+U run with fixed occupancies: Results can be inaccurate or even w rong! |
能帶和態(tài)密度分析 | 心理互助 |


木蟲 (正式寫手)
金蟲 (正式寫手)
送鮮花一朵 |
態(tài)密度圖中什么都沒有啊,怎么看呢?結(jié)果文件中有 number of bands / k-point : 107是指K點(diǎn)數(shù)是107嗎?還有k點(diǎn)數(shù)和能帶數(shù)有什么關(guān)系呢? 還有下面這段話 k-Points For BZ Sampling ------------------------------- MP grid size for SCF calculation is 2 3 1 Number of kpoints used = 2 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ + Number Fractional coordinates Weight + +-----------------------------------------------------+ + 1 0.250000 0.333333 0.000000 0.6666667 + + 2 0.250000 0.000000 0.000000 0.3333333 + +++++++++++++++++++++++++++++++++++++++++++++++++++++++ |

金蟲 (正式寫手)

金蟲 (正式寫手)


木蟲 (正式寫手)
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在你計算結(jié)果的文件夾里面會有以.cell結(jié)尾的隱藏文件,用寫字板打開,單點(diǎn)能、能帶以及態(tài)密度計算都會有對應(yīng)的.cell文件,分別記錄各自計算時的k點(diǎn)坐標(biāo)以及權(quán)重。 CASTEP就兩個參數(shù)文件,一個是.param結(jié)尾的,一個是.cell結(jié)尾的,在MS中前面一個是可見的,后面一個是隱藏的,里面的參數(shù)都可調(diào),具體參見help中的castep keywords。 |
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