dielectric tensors in phonon calculation using the QE
Posted: Sun Jun 04, 2023 8:09 am
Hello everyone，
Using the QE, i obtain the dielectric tensors by ph.x, i want to know, Is this dielectric constant a high frequency dielectric constant or a static
dielectric constant？ thank you very much.
<EPSILON type="real" size="9" columns="3">
1.040587278179623E+002 7.105427357601002E-015 -7.105427357601002E-015
2.131628207280301E-014 1.040587278179623E+002 -6.394884621840902E-014
-2.131628207280301E-014 -6.394884621840902E-014 1.040587278179623E+002
</EPSILON>
Using the QE, i obtain the dielectric tensors by ph.x, i want to know, Is this dielectric constant a high frequency dielectric constant or a static
dielectric constant？ thank you very much.
<EPSILON type="real" size="9" columns="3">
1.040587278179623E+002 7.105427357601002E-015 -7.105427357601002E-015
2.131628207280301E-014 1.040587278179623E+002 -6.394884621840902E-014
-2.131628207280301E-014 -6.394884621840902E-014 1.040587278179623E+002
</EPSILON>