Scattering rate

[tswang]

Dear developer and users,

I know similar questions have been answered. However, I still want to make sure how to convert linewidth to scattering rate.

I know the below equation should be correct for electron from the Equation 61.

The scattering rate in (1/s) = 2/hbar * linewidth in eV

Is it also correct for phonon? If it is, it seems to be two times larger than the Equation 2 in B. Liao, B. Qiu, J. Zhou, S. Huberman, K. Esfarjani, and G. Chen, Phys. Rev. Lett. 114, 1 (2015).


Thank you for your help!

[tswang]

Hi,

I found that it is true for phonons either as shown as the equation 146 in the paper F. Giustino, Electron-phonon interactions from first princiles (2016).

The "2" in phonon linewidth equation comes from the degeneracy of spins.

[sponce]

Dear tswang,

That's correct.

Sorry for the delayed reply to this simple question.

Best,

Samuel