| 24小時(shí)熱門(mén)版塊排行榜 |
| 查看: 2421 | 回復(fù): 16 | |||
[求助]
想要得到平滑一些的DOS
|
| 各位,想要把dos做的平滑些,我用做金屬表面吸附有機(jī)分子體系,ISMEAR=-5,NEDOS=1001,出來(lái)的峰比較尖,很是難看,請(qǐng)教大家有什么好辦法把它搞得平滑些,有人說(shuō)NEDOS取大些,有人說(shuō)取小些,還有人說(shuō)ISMEAR取1或者0,那種方法好一些,請(qǐng)各位賜教!多謝了! |
first principle |
金蟲(chóng) (小有名氣)
鐵桿木蟲(chóng) (著名寫(xiě)手)

金蟲(chóng) (小有名氣)
鐵桿木蟲(chóng) (著名寫(xiě)手)
|
Mind: Avoid using ISMEAR>0 for semiconductors and insulators, since this often leads to incorrect results (The occupancies of some states might be larger or smaller than 1). For insulators use ISMEAR=0 or ISMEAR=-5. The Gaussian smearing (GS) method leads in most cases also to reasonable results. Within this method it is necessary to extrapolate from finite SIGMA results to SIGMA=0 results. You can find an extra line in the OUTCAR file ’energy( SIGMA → 0)’ giving the extrapolated results. Large SIGMA values lead to a similar error as the MP scheme, but in contrast to the MP scheme one can not determine, how large the error due to the smearing is with systematically reducing SIGMA. Therefore the method of MP is more convenient than the GS method. In addition, in the GS method forces and the stress tensor are consistent with the free energy and not the energy for SIGMA → 0. Overall the Methfessel-Paxton is easier to use for metallic systems. |

鐵桿木蟲(chóng) (著名寫(xiě)手)
|
還是上段話: The Gaussian smearing (GS) method leads in most cases also to reasonable results. Within this method it is necessary to extrapolate from finite SIGMA results to SIGMA=0 results. You can find an extra line in the OUTCAR file ’energy( SIGMA → 0)’ giving the extrapolated results. Large SIGMA values lead to a similar error |

| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 305分求調(diào)劑(食品工程) +3 | Sxy112 2026-03-21 | 5/250 |
|
|---|---|---|---|---|
|
[考研] 環(huán)境學(xué)碩288求調(diào)劑 +4 | 皮皮皮123456 2026-03-22 | 4/200 |
|
|
[考博] 招收博士1-2人 +3 | QGZDSYS 2026-03-18 | 4/200 |
|
|
[考研] 269專碩求調(diào)劑 +5 | 金恩貝 2026-03-21 | 5/250 |
|
|
[考研] 材料求調(diào)劑 +5 | @taotao 2026-03-21 | 5/250 |
|
|
[考研] 考研化學(xué)學(xué)碩調(diào)劑,一志愿985 +5 | 張vvvv 2026-03-15 | 7/350 |
|
|
[考研] 工科0856求調(diào)劑 +3 | 沐析汀汀 2026-03-21 | 3/150 |
|
|
[考研] 【考研調(diào)劑】化學(xué)專業(yè) 281分,一志愿四川大學(xué),誠(chéng)心求調(diào)劑 +11 | 吃吃吃才有意義 2026-03-19 | 11/550 |
|
|
[考研] 0703化學(xué)297求調(diào)劑 +3 | Daisy☆ 2026-03-20 | 3/150 |
|
|
[考研] 311求調(diào)劑 +3 | 勇敢的小吳 2026-03-20 | 3/150 |
|
|
[考研] 一志愿重慶大學(xué)085700資源與環(huán)境總分308求調(diào)劑 +7 | 墨墨漠 2026-03-20 | 7/350 |
|
|
[考研] 299求調(diào)劑 +4 | 某某某某位 2026-03-21 | 4/200 |
|
|
[考研] 一志愿華中科技大學(xué),080502,354分求調(diào)劑 +5 | 守候夕陽(yáng)CF 2026-03-18 | 5/250 |
|
|
[考研] 304求調(diào)劑 +6 | 曼殊2266 2026-03-18 | 6/300 |
|
|
[考研] 一志愿蘇州大學(xué)材料求調(diào)劑,總分315(英一) +5 | sbdksD 2026-03-19 | 5/250 |
|
|
[考研] 329求調(diào)劑 +9 | 想上學(xué)吖吖 2026-03-19 | 9/450 |
|
|
[考研] 261求B區(qū)調(diào)劑,科研經(jīng)歷豐富 +3 | 牛奶很忙 2026-03-20 | 4/200 |
|
|
[考研] 招收調(diào)劑碩士 +4 | lidianxing 2026-03-19 | 12/600 |
|
|
[考研] 333求調(diào)劑 +3 | 文思客 2026-03-16 | 7/350 |
|
|
[考研] 318求調(diào)劑 +3 | Yanyali 2026-03-15 | 3/150 |
|