[QE-users] Infrared Intensity - unexpected values
ivanpck-cetmic.unlp.edu.ar
ivanp at cetmic.unlp.edu.ar
Tue Sep 19 20:37:40 CEST 2023
Hello to everyone,
I'm working with ph.x and dynmat.x in a system based on kaolinite
(insulator) to obtain IR frequencies and intensities using the follow
inputs:
Normal modes for 22Hil-1
&inputph
recover=.true.,
tr2_ph=1.0d-14,
prefix='2Hil',
max_seconds= 200000,
amass(1)=26.9815, amass(2)=28.0860, amass(3)=15.9994, amass(4)=1.00797,
outdir='outdir1/'
epsil=.true., trans=.true., asr=.true.,
fildyn='dmat.2Hil'
/
0.0 0.0 0.0
&input
fildyn='dmat.2Hil', asr='simple', q(1)=1.0, q(2)=0.0, q(3)=0.0 /
There is no problem or error message with that calculations, but the
results for the dynmat.out are strage and I don't know how to solve it.
I mean, the third column, named IR, gives me values greater than 100
(below). Could somebudy help me?
IR activities are in (D/A)^2/amu units
# mode [cm-1] [THz] IR
....
71 970.50 29.0948 92.6530
72 973.60 29.1877 81.3700
73 991.41 29.7218 15.0515
74 1000.71 30.0006 24.4684
75 1037.95 31.1170 144.1523
76 1049.78 31.4716 5.3259
77 1067.96 32.0165 0.3261
78 1094.13 32.8011 31.5388
79 1170.91 35.1029 5.2444
80 2196.18 65.8399 1639.8092
81 3541.70 106.1776 517.0791
82 3624.17 108.6499 420.1149
83 3646.14 109.3085 454.4368
84 3695.95 110.8019 562.9540
Thanks
------------
Polcowñuk Iriarte Ivan A.
National University of La Plata, Argentina.
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