| 5 | 1/1 | 返回列表 |
| 查看: 2996 | 回復(fù): 17 | |||
| 【有獎交流】積極回復(fù)本帖子,參與交流,就有機會分得作者 shijing879 的 9 個金幣 ,回帖就立即獲得 1 個金幣,每人有 1 次機會 | |||
| 當前只顯示滿足指定條件的回帖,點擊這里查看本話題的所有回帖 | |||
[交流]
BSE+GW計算光學(xué)吸收譜(激子結(jié)合能)
|
|||
| 大家好,請問大家誰有BSE+GW計算光學(xué)吸收譜(激子結(jié)合能)的INCAR設(shè)置步驟,KPOINTS和注意事項,要求能計算成功,我要計算的是二維材料,官網(wǎng)和網(wǎng)上的一些教程就不要推薦了,我已經(jīng)試過! |
» 搶金幣啦!回帖就可以得到:
+1/905
+1/96
+2/94
+1/90
+1/89
+3/86
+1/43
+1/20
+1/20
+1/18
+1/12
+2/10
+1/8
+1/5
+1/4
+1/4
+1/3
+1/2
+1/1
+1/1
|
Step 1: a “standard” DFT groundstate calculation KPOINTS (e.g. KPOINTS.6): 6x6x6 0 G 6 6 6 0 0 0 INCAR (copy INCAR.DFT to INCAR): PREC = Normal ENCUT = 250 Default Set cutoff energy to 250 eV ISMEAR = 0 SIGMA = 0.01 Gaussian smearing Set small smearing width KPAR = 2 Additional parallelization EDIFF = 1.E-8 Set tight convergence criterium |
|
VASP sucks! Goal: account for excitonic effects in the frequency dependent dielectric function • GW0+BSE: Solve the Bethe-Salpeter-Equation on top of GW0 WORKFLOW of a GW0+BSE calculation The workflow of the GW0+BSE calculation in job.sh consists of five consecutive steps: Step 1: a “standard" DFT groundstate calculation Step 2: compute additional DFT “virtual” orbitals (empty states): • Needs the WAVECAR from Step 1. Step 3: the GW0 calculation: • Needs the WAVECAR and WAVEDER files from Step 2. Step 4: (optional) use LOPTICS=.TRUE. to plot the IPA dielectric function using the GW0-QP energies instead of DFT eigenenergies • Needs the WAVECAR file from Step 3. Step 5: the BSE calculation: • Needs WAVECAR file from Step 3 and WAVEDER file from Step 2. |
|
•Step 2: compute additional DFT “virtual” orbitals (empty states) INCAR (copy INCAR.DIAG to INCAR): PREC = Normal ; ENCUT = 250 ALGO = Exact NELM = 1 Exact diagonalisation of the Hamiltonian Only 1 electronic step ISMEAR = 0 ; SIGMA = 0.01 NBANDS = 128 Keep 128 bands after diagonalisation LOPTICS = .TRUE. LPEAD = .TRUE. Compute derivative of the orbitals w.r.t. the Bloch wave vector (stored in the WAVEDER file) using the PEAD formalism OMEGAMAX = 40 N.B.: This calculation needs the orbitals (WAVECAR file) written in Step 1. |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 327分求調(diào)劑086 +3 | 西紅柿?小帥 2026-03-09 | 6/300 |
|
|---|---|---|---|---|
|
[考研] 308求調(diào)劑 +4 | 是Lupa啊 2026-03-08 | 6/300 |
|
|
[考研] 293一志愿華東理工 0817化學(xué)工程與技術(shù) 調(diào)劑 +5 | fjj0912 2026-03-07 | 5/250 |
|
|
[考研] 材料工程330分求調(diào)劑,一志愿985 +3 | 小材化本科 2026-03-07 | 3/150 |
|
|
[考研] 269求調(diào)劑 +3 | 朔朔話 2026-03-08 | 4/200 |
|
|
[考研] 347求調(diào)劑 +4 | 浮云滿足 2026-03-07 | 4/200 |
|
|
[考研] 083000,總分284,求調(diào)劑 +5 | 徐yr 2026-03-04 | 5/250 |
|
|
[考研] 085701環(huán)境工程專業(yè),初試305,均過國家A區(qū)線 +7 | 卡卡來了@ 2026-03-07 | 8/400 |
|
|
[考研] 346分材料求調(diào)劑 +5 | snow_反季節(jié)版 2026-03-07 | 5/250 |
|
|
[考研] 0307化學(xué)求調(diào)劑 +6 | 0ok0k 2026-03-07 | 6/300 |
|
|
[考研] 第一志愿上海大學(xué),專業(yè)化學(xué)工程與技術(shù),總分288,求調(diào)劑 +3 | 1829197082 2026-03-07 | 3/150 |
|
|
[考研] 誠求調(diào)劑,323分 有專利/科研/實習(xí)經(jīng)歷 +6 | 橙子cyx 2026-03-06 | 8/400 |
|
|
[考研] 2026調(diào)劑】考試A區(qū)0703化學(xué)類323分 誠求接收 +3 | 卷柏卷柏 2026-03-05 | 4/200 |
|
|
[考研] 求調(diào)劑推薦 +4 | 微辣不吃 2026-03-06 | 4/200 |
|
|
[考研] 不限學(xué)校專業(yè)的調(diào)劑同學(xué)看過來 +5 | 啊擺啊擺 2026-03-05 | 9/450 |
|
|
[考研] 282求調(diào)劑 +7 | 夕~日 2026-03-05 | 8/400 |
|
|
[考研] 材料與化工,291,求調(diào)劑 +7 | 咕嚕咕嚕123123 2026-03-05 | 8/400 |
|
|
[考研] 274環(huán)境工程求調(diào)劑 +6 | 扶柳盈江 2026-03-05 | 6/300 |
|
|
[考研] 材料學(xué)碩080500復(fù)試調(diào)劑294 +3 | 四葉zjz 2026-03-04 | 3/150 |
|
|
[考研] 0703化學(xué)求調(diào)劑 +3 | 將未有期 2026-03-04 | 3/150 |
|