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标题:
求助QE模拟红外光谱出错
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作者Author:
qczgzly
时间:
2023-2-6 07:49
标题:
求助QE模拟红外光谱出错
我有一个氢氧化铜吸附有机小分子体系,首先用pw.x优化结构,得到正常收敛的结果。然后用ph.x计算声子,也能正常结束,但得不到dielec相关信息,通过fildyn关键词输出的文件中也没有任何信息。用于ph.x计算的输入文件如下:
Normal modes for Cu001-Val2
&inputph
tr2_ph= 1.0d-12
prefix= 'Cu001-Val2'
epsil= .false.
trans= .true.
asr= .true.
outdir= './'
fildyn= 'Cu001-Val2_IR.dynG'
/
0.0 0.0 0.0
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经排查,如果设置
epsil= .true. ,则产生如下信息:
Reading xml data from directory:
./Cu001-Val2.save/
Message from routine read_pp_mesh:
mesh size missing, using the one in header
Message from routine read_pp_mesh:
mesh size missing, using the one in header
Message from routine read_pp_mesh:
mesh size missing, using the one in header
file O.pbe-n-kjpaw_psl.0.1.UPF: wavefunction(s) 2P renormalized
file C.pbe-n-kjpaw_psl.1.0.0.UPF: wavefunction(s) 2S 2P renormalized
IMPORTANT: XC functional enforced from input :
Exchange-correlation= PBE
( 1 4 3 4 0 0 0)
Any further DFT definition will be discarded
Please, verify this is what you really want
……
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Error in routine phq_readin (1):
no elec. field with metals
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
stopping ...
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想在此求助对于含金属元素的有机无机杂化体系,应如何计算其红外光谱?谢谢!
作者Author:
qczgzly
时间:
2023-2-13 14:21
自我解答如下:
首先对于金属元素,epsil字段不能设置为.true.,否则出现如上报错。其次设置epsil=.false.后,用ph.x计算声子未得到dielec相关信息及输出的fildyn文件,原因为声子计算没达到收敛阈值。在pw.x计算中提高收敛精度,例如设置conver_thr=1.0d-10,然后在ph.x计算中设置tr2_ph=1.0d-08,则成功完成计算,得到预期信息。
作者Author:
dr_tao
时间:
2023-6-28 09:00
请问楼主现在还从事IR模拟方面的工作吗?有没有兴趣合作课题?
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