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本帖最后由 wmg166 于 2024-2-1 19:21 编辑
Pt 和 Ti 的化合物,2 2 2 扩胞后这样:
generated by phonopy
1.0
10.1501998901999997 0.0000000000000000 0.0000000000000000
0.0000000000000000 17.3822002409999996 0.0000000000000000
0.0000000000000000 0.0000000000000000 20.9001998901999997
Pt Ti
128 96
POSCAR-unitcell如附图1。VASP结合Phonopy计算声子谱,微扰密度泛函方法(DFPT),计算结束后运行phonopy --fc vasprun.xml得到FORCE_CONSTANTS文件,准备band.conf文件,如附图2,
运行phonopy --dim 2 2 2 -c POSCAR-unitcell band.conf得不到band.yaml文件。出现提示:
"band.conf" was read as phonopy configuration file.
Crystal structure was read from "POSCAR-unitcell".
Unit of length: angstrom
Band structure mode
Settings:
Force constants symmetrization: on
Supercell: [2 2 2]
Spacegroup: Pbcm (57)
Use -v option to watch primitive cell, unit cell, and supercell structures.
Force constants are read from "FORCE_CONSTANTS".
Number of atoms in supercell (224) is not consistent with the matrix shape of
force constants (28, 28) read from FORCE_CONSTANTS.
Please carefully check DIM, FORCE_CONSTANTS, and POSCAR-unitcell.
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