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[求助]
请教vasp+phonopy声子谱虚频问题
计算的是YAlO3出现了下面的情况
虚频从112开始太多了这里就贴119,120
band.conf
ATOM_NAME= Y Al O
DIM = 2 2 2
FORCE_CONSTANTS=READ
BAND = 0 0 0 0 0 0.5 -0.5 0 0.5 -0.5 0 0 -0.5 0.5 0 0 0.5 0 0 0.5 0.5 -0.5 0.5 0.5
BAND_POINTS = 101
BAND_LABELS = \Gamma Z T Y S X U R
对具体的虚频对应的坐标
以及振动方向来调整原子坐标从而消除虚频不清楚
麻烦大家帮忙看看
119 f/i= 7.818909 THz 49.127654 2PiTHz 260.810722 cm-1 32.336420 meV
X Y Z dx dy dz
0.000000 0.000000 0.000000 0.002034 -0.000001 0.000000
3.640000 0.000000 0.000000 -0.002034 0.000001 0.000000
0.000000 3.640000 0.000000 -0.002034 0.000001 0.000000
3.640000 3.640000 0.000000 0.002034 -0.000001 0.000000
0.000000 0.000000 3.650000 -0.002034 0.000001 0.000000
3.640000 0.000000 3.650000 0.002034 -0.000001 0.000000
0.000000 3.640000 3.650000 0.002034 -0.000001 0.000000
3.640000 3.640000 3.650000 -0.002034 0.000001 0.000000
1.820000 1.820000 1.825000 0.000000 0.000000 0.000000
5.460000 1.820000 1.825000 0.000000 0.000000 0.000000
1.820000 5.460000 1.825000 0.000000 0.000000 0.000000
5.460000 5.460000 1.825000 0.000000 0.000000 0.000000
1.820000 1.820000 5.475000 0.000000 0.000000 0.000000
5.460000 1.820000 5.475000 0.000000 0.000000 0.000000
1.820000 5.460000 5.475000 0.000000 0.000000 0.000000
5.460000 5.460000 5.475000 0.000000 0.000000 0.000000
1.820000 1.820000 0.000000 -0.000153 0.250583 0.000000
5.460000 1.820000 0.000000 0.000153 -0.250583 0.000000
1.820000 5.460000 0.000000 0.000153 -0.250583 0.000000
5.460000 5.460000 0.000000 -0.000153 0.250583 0.000000
1.820000 1.820000 3.650000 0.000153 -0.250583 0.000000
5.460000 1.820000 3.650000 -0.000153 0.250583 0.000000
1.820000 5.460000 3.650000 -0.000153 0.250583 0.000000
5.460000 5.460000 3.650000 0.000153 -0.250583 0.000000
1.820000 0.000000 1.825000 0.000000 0.000000 -0.249407
5.460000 0.000000 1.825000 0.000000 0.000000 0.249407
1.820000 3.640000 1.825000 0.000000 0.000000 0.249407
5.460000 3.640000 1.825000 0.000000 0.000000 -0.249407
1.820000 0.000000 5.475000 0.000000 0.000000 0.249407
5.460000 0.000000 5.475000 0.000000 0.000000 -0.249407
1.820000 3.640000 5.475000 0.000000 0.000000 -0.249407
5.460000 3.640000 5.475000 0.000000 0.000000 0.249407
0.000000 1.820000 1.825000 0.000000 0.000000 0.000152
3.640000 1.820000 1.825000 0.000000 0.000000 -0.000152
0.000000 5.460000 1.825000 0.000000 0.000000 -0.000152
3.640000 5.460000 1.825000 0.000000 0.000000 0.000152
0.000000 1.820000 5.475000 0.000000 0.000000 -0.000152
3.640000 1.820000 5.475000 0.000000 0.000000 0.000152
0.000000 5.460000 5.475000 0.000000 0.000000 0.000152
3.640000 5.460000 5.475000 0.000000 0.000000 -0.000152
120 f/i= 8.303368 THz 52.171601 2PiTHz 276.970541 cm-1 34.339983 meV
X Y Z dx dy dz
0.000000 0.000000 0.000000 0.000000 0.000000 0.000000
3.640000 0.000000 0.000000 0.000000 0.000000 0.000000
0.000000 3.640000 0.000000 0.000000 0.000000 0.000000
3.640000 3.640000 0.000000 0.000000 0.000000 0.000000
0.000000 0.000000 3.650000 0.000000 0.000000 0.000000
3.640000 0.000000 3.650000 0.000000 0.000000 0.000000
0.000000 3.640000 3.650000 0.000000 0.000000 0.000000
3.640000 3.640000 3.650000 0.000000 0.000000 0.000000
1.820000 1.820000 1.825000 0.000000 0.000000 0.000000
5.460000 1.820000 1.825000 0.000000 0.000000 0.000000
1.820000 5.460000 1.825000 0.000000 0.000000 0.000000
5.460000 5.460000 1.825000 0.000000 0.000000 0.000000
1.820000 1.820000 5.475000 0.000000 0.000000 0.000000
5.460000 1.820000 5.475000 0.000000 0.000000 0.000000
1.820000 5.460000 5.475000 0.000000 0.000000 0.000000
5.460000 5.460000 5.475000 0.000000 0.000000 0.000000
1.820000 1.820000 0.000000 0.000000 0.000000 0.000000
5.460000 1.820000 0.000000 0.000000 0.000000 0.000000
1.820000 5.460000 0.000000 0.000000 0.000000 0.000000
5.460000 5.460000 0.000000 0.000000 0.000000 0.000000
1.820000 1.820000 3.650000 0.000000 0.000000 0.000000
5.460000 1.820000 3.650000 0.000000 0.000000 0.000000
1.820000 5.460000 3.650000 0.000000 0.000000 0.000000
5.460000 5.460000 3.650000 0.000000 0.000000 0.000000
1.820000 0.000000 1.825000 0.250000 0.000000 0.000000
5.460000 0.000000 1.825000 -0.250000 0.000000 0.000000
1.820000 3.640000 1.825000 -0.250000 0.000000 0.000000
5.460000 3.640000 1.825000 0.250000 0.000000 0.000000
1.820000 0.000000 5.475000 -0.250000 0.000000 0.000000
5.460000 0.000000 5.475000 0.250000 0.000000 0.000000
1.820000 3.640000 5.475000 0.250000 0.000000 0.000000
5.460000 3.640000 5.475000 -0.250000 0.000000 0.000000
0.000000 1.820000 1.825000 0.000000 -0.250000 0.000000
3.640000 1.820000 1.825000 0.000000 0.250000 0.000000
0.000000 5.460000 1.825000 0.000000 0.250000 0.000000
3.640000 5.460000 1.825000 0.000000 -0.250000 0.000000
0.000000 1.820000 5.475000 0.000000 0.250000 0.000000
3.640000 1.820000 5.475000 0.000000 -0.250000 0.000000
0.000000 5.460000 5.475000 0.000000 -0.250000 0.000000
3.640000 5.460000 5.475000 0.000000 0.250000 0.000000
![请教vasp+phonopy声子谱虚频问题]()
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