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大力2010

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[求助] 请教高手,微扰密度泛函方法(DFPT)计算声子谱,phonopy得不到band.yaml文件,咋办已有1人参与

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,
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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dxcharlary

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【答案】应助回帖

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.

这不是写的很清楚吗?你计算的force constant文件要用超胞的POSCAR
2楼2024-02-11 20:55:39
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