Pop_frequency has related with effective phonon frequency?

AMSET
1

Dear Alex and kind users,

I have a stupid question: in the calculation of dielectric constants and phonon frequency, typing “amset phonon-frequency”, amset tells me the effective frequency and corresponding weight. What is the relationship between this effective phonon frequency and pop_frequency in the POP scattering_type? As a fact, the pop_frequency is the highest optical phonon frequency at the Gamma point. Could you please give me some suggestions? I want to involve the POP in my calculation.
Thanks a lot!

Best wishes,
Zhibin

2

A post was split to a new topic: What is the high_frequency_dielectric

3

Dear Alex and kind users,

after typing: “amset phonon-frequency”, I got the info like this:
Frequency Weight

  -0.00      0.00
  -0.00      0.00
  -0.00      0.00
   0.37      0.01
   0.48      0.00
   0.61      0.06
   2.32      0.00
   2.38      0.01
   2.80      0.00
   2.81      0.14
   3.47      0.21
   3.50      0.01
   3.73      0.01
   3.81      0.06
   3.85      0.00
   3.87      0.17
   4.15      0.00
   4.17      0.00
   4.19      0.00
   4.24      0.00
   5.84      0.00
   5.86      0.00
   6.11      0.00
   6.12      0.08
   6.41      0.00
   6.44      0.00
   6.46      0.02
   6.46      0.04
   7.16      0.10
   7.19      0.01
   7.30      0.00
   7.31      0.00
   7.33      0.00
   7.33      0.07
   7.60      0.00
   7.60      0.00

effective frequency: 4.32 THz
Sorry that I did not paste my output for your kind reference. Thank you.

Best wishes,
Zhibin

4

The effective frequency is pop_frequency. I will update the phonon-frequency tool to update the name.

5

Dear Alex,

You are very generous and kind! Thank you very much!

Best wishes,
Zhibin