ELPH SELFEN FAN: Difference between revisions

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{{DISPLAYTITLE:ELPH_SELFEN_FAN}}
{{DISPLAYTITLE:ELPH_SELFEN_FAN}}
{{TAGDEF|ELPH_SELFEN_FAN|.TRUE. {{!}} .FALSE.|.FALSE.}}
{{TAGDEF|ELPH_SELFEN_FAN|[logical]|.FALSE.}}


Description: Controls whether the Fan-Migdal contribution is included in the calculation of the phonon-induced electron self-energy.
Description: Controls whether the Fan-Migdal contribution is included in the calculation of the phonon-induced electron self-energy.
{{Available|6.5.0}}


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/results/electron_phonon/electrons/self_energy_1/selfen_fan
/results/electron_phonon/electrons/self_energy_1/selfen_fan
</pre>
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==Related tags and articles==
* [[Bandgap renormalization due to electron-phonon coupling|Bandstructure renormalization]]
* [[Transport coefficients including electron-phonon scattering|Transport calculations]]
* {{TAG|ELPH_RUN}}
* {{TAG|ELPH_SELFEN_DW}}
* {{TAG|ELPH_SELFEN_STATIC}}
[[Category:INCAR tag]][[Category:Electron-phonon_interactions]]

Latest revision as of 14:24, 17 January 2025

ELPH_SELFEN_FAN = [logical]
Default: ELPH_SELFEN_FAN = .FALSE. 

Description: Controls whether the Fan-Migdal contribution is included in the calculation of the phonon-induced electron self-energy.

Mind: Available as of VASP 6.5.0

The phonon-induced electron self-energy has two contributions at second order in perturbation theory, the Fan-Migdal self-energy and the real-valued Debye-Waller self-energy. ELPH_SELFEN_FAN controls the computation of the former, while the latter can be computed via ELPH_SELFEN_DW.

The result is reported individually for each self-energy accumulator in the vaspout.h5 file as

/results/electron_phonon/electrons/self_energy_1/selfen_fan

Related tags and articles