ELPH SCATTERING APPROX: Difference between revisions

Revision as of 08:56, 8 October 2024

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ELPH_SCATTERING_APPROX = [string]
Default: ELPH_SCATTERING_APPROX = SERTA MRTA_LAMBDA

Description: Select which type of approximation is used to compute the electron scattering due to electron-phonon coupling

The possible options are:

CRTA

Constant relaxation time approximation

SERTA

Self-energy relaxation time approximation

ERTA_LAMDBA

Energy relaxation time approximation (mean-free path approximation)

ERTA_TAU

Energy relaxation time approximation (lifetime approximation)

MRTA_LAMDBA

Momentum relaxation time approximation (mean-free path approximation)

MRTA_TAU

Momentum relaxation time approximation (lifetime approximation)

Note that when the CRTA option is selected, the reading of the phelel_params.hdf5 file and calculation of electron self-energy is completely skipped.

@@ Line 1: / Line 1: @@
 {{elph_release}}
 {{DISPLAYTITLE:ELPH_SCATTERING_APPROX}}
-{{TAGDEF|ELPH_SCATTERING_APPROX|[string]| SERTA MRTA_LAMBDA
+{{TAGDEF|ELPH_SCATTERING_APPROX|[string]| SERTA MRTA_LAMBDA}}
+Description: Select which type of approximation is used to compute the electron scattering due to electron-phonon coupling
-CRTA - constant relaxation time approximation
+----
-SERTA - self-energy relaxation time approximation
+The possible options are:
+=== CRTA ===
+Constant relaxation time approximation
+=== SERTA ===
+Self-energy relaxation time approximation
+=== ERTA_LAMDBA ===
+Energy relaxation time approximation (mean-free path approximation)
+=== ERTA_TAU ===
+Energy relaxation time approximation (lifetime approximation)
+=== MRTA_LAMDBA ===
+Momentum relaxation time approximation (mean-free path approximation)
+=== MRTA_TAU ===
+Momentum relaxation time approximation (lifetime approximation)
+Note that when the CRTA option is selected, the reading of the {{FILE|phelel_params.hdf5}} file and calculation of electron self-energy is completely skipped.