步骤 (1)、准备POSCAR,命名为POSCAR-unitcell (2)、输入扩胞命令:phonopy -d --dim="4 4 1" -c POSCAR-unitcell,将生成的SPOSCAR命名为POSCAR (3)、准备四个输入文件 INCAR设置:#==================以内的内容 #==================================================== #####Electron steps: ISTART=0 ICHARG=2 NELM=200 ISMEAR=0 SIGMA=0.05 ISPIN=1 EDIFF=1.0e-05 PREC=L ALGO = N GGA = PE #####Ion steps: IBRION=0 NSW=30000 ISIF=0 EDIFFG=-0.001 #####DOS and bands: LORBIT = 11 #####Parallel parameters: NPAR=4 LPLANE = .TRUE. LSCALAPACK=F LSCALU=F NSIM = 4 #####Other settings: ISYM=0 SYMPREC=1E-4 #####Customized settings: AMIN=0.01 LREAL=A LDAU=T LDAUTYPE=2 LMAXMIX=4 LASPH=T LDAUL= -1 -1 LDAUU= 0.0 0.0 LDAUJ= 0.0 0.0 ENCUT=312.390 EIDFF = 1E-4 TEBEG = 300 TEEND = 300 SMASS = 3 MAXMIX = 40 IALGO = 48 POTIM = 1.0 APACO = 10 NPACO = 200 LCHARG = F LWAVE = F NWRITE = 0 #==================================================== (4)、准备KPOINTS,注意k点是1 1 1,因为只算单胞 (5)、提交,注意用vasp_gam提交 (6)、输入命令:grep E= OSZICAR > energy.dat ,可以将能量随时间的变化提取出来 (7)、创建文件名为test.vasp,将XDATCAR中的内容复制进去,可以看到当前步数下的晶胞 常见错误 (1)分子动力学模拟出现Information: wavefunction orthogonal band 32 0.8219,减小potim
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