Beyond the quasiparticle approximation: Fully self-consistent GW calculations
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F18%3A00506516" target="_blank" >RIV/61388955:_____/18:00506516 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216208:11320/18:10384678
Výsledek na webu
<a href="http://hdl.handle.net/11104/0297746" target="_blank" >http://hdl.handle.net/11104/0297746</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.98.155143" target="_blank" >10.1103/PhysRevB.98.155143</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Beyond the quasiparticle approximation: Fully self-consistent GW calculations
Popis výsledku v původním jazyce
We present quasiparticle (QP) energies from fully self-consistent GW (scGW) calculations for a set of prototypical semiconductors and insulators within the framework of the projector-augmented-wave methodology. To obtain converged results, both finite basis-set corrections and k-point corrections are included, and a simple procedure is suggested to deal with the singularity of the Coulomb kernel in the long-wavelength limit, the so-called head correction. It is shown that the inclusion of the head corrections in the scG W calculations is critical to obtain accurate QP energies with a reasonable k-point set. We first validate our implementation by presenting detailed results for the selected case of diamond, and then we discuss the converged QP energies, in particular the band gaps, for a set of gapped compounds and compare them to single-shot G(0)W(0), QP self-consistent G(W), and previously available scGW results as well as experimental results.
Název v anglickém jazyce
Beyond the quasiparticle approximation: Fully self-consistent GW calculations
Popis výsledku anglicky
We present quasiparticle (QP) energies from fully self-consistent GW (scGW) calculations for a set of prototypical semiconductors and insulators within the framework of the projector-augmented-wave methodology. To obtain converged results, both finite basis-set corrections and k-point corrections are included, and a simple procedure is suggested to deal with the singularity of the Coulomb kernel in the long-wavelength limit, the so-called head correction. It is shown that the inclusion of the head corrections in the scG W calculations is critical to obtain accurate QP energies with a reasonable k-point set. We first validate our implementation by presenting detailed results for the selected case of diamond, and then we discuss the converged QP energies, in particular the band gaps, for a set of gapped compounds and compare them to single-shot G(0)W(0), QP self-consistent G(W), and previously available scGW results as well as experimental results.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10403 - Physical chemistry
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2018
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Physical Review B
ISSN
2469-9950
e-ISSN
—
Svazek periodika
98
Číslo periodika v rámci svazku
15
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
9
Strana od-do
155143
Kód UT WoS článku
000448595400001
EID výsledku v databázi Scopus
2-s2.0-85056421043