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李十一鐵蟲 (初入文壇)
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[求助]
vasp使用CLNEB計(jì)算過渡態(tài)出現(xiàn)問題 已有1人參與
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我在使用VASP中的CLNEB計(jì)算水分子和臭氧分子共同吸附在表面上的過渡態(tài)時(shí),發(fā)現(xiàn)CNEB計(jì)算收斂,但能量最高點(diǎn)的切向力不接近0,想請教一下是什么問題導(dǎo)致的? 在下面貼出我的INCAR Global Parameters 2 ISTART = 0 (Read existing wavefunction; if there) 3 LREAL = Auto (Projection operators: automatic) 4 ENCUT = 800 (Cut-off energy for plane wave basis set, in eV) 5 PREC = Normal (Precision level) 6 Electronic Relaxation 7 ISMEAR = -5 (Gaussian smearing; metals:1) 8 NELM = 60 (Max electronic SCF steps) 9 NELMIN = 6 (Min electronic SCF steps) 10 EDIFF = 1E-07 (SCF energy convergence; in eV) 11 Ionic Relaxation 12 NSW = 500 (Max ionic steps) 13 ISPIN = 2 14 ISIF = 2 (Stress/relaxation: 2-Ions, 3-Shape/Ions/V, 4-Shape/Ions) 15 EDIFFG = -0.05 (Ionic convergence; eV/AA) 16 NCORE = 4 17 ALGO = Fast 18 LDIPOL = T 19 IDIPOL = 3 20 IVDW = 11 21 IMAGES = 2 IOPT = 7 SPRING = -5.0 ICHAIN = 0 LCLIMB = T IBRION= 3 POTIM= 0 以及我的能量和力的參數(shù) 0 0.000000 -509.312400 0.000000 1 0.049668 -509.278100 0.034300 2 0.048540 -507.575600 1.736800 3 0.000000 -509.422100 -0.109700 謝謝!! |
計(jì)算資料 |
新蟲 (正式寫手)
木蟲 (著名寫手)
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