Real-space dynamical mean-field theory of Friedel oscillations in strongly correlated electron systems

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F19%3A00521047" target="_blank" >RIV/68378271:_____/19:00521047 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/physrevb.100.115118" target="_blank" >https://doi.org/10.1103/physrevb.100.115118</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.100.115118" target="_blank" >10.1103/PhysRevB.100.115118</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Real-space dynamical mean-field theory of Friedel oscillations in strongly correlated electron systems

Popis výsledku v původním jazyce

We study Friedel oscillations and screening effects of the impurity potential in the Hubbard model. Electronic correlations are accounted for by solving the real-space dynamical mean-field theory equations using the continuous time quantum Monte-Carlo simulations at finite temperatures and using a homogeneous self-energy approximation with the numerical renormalization group at zero temperature. We find that in the Fermi liquid phase both the amplitudes of Friedel oscillations and the screening charge decrease with increasing the interaction and follow the behavior of the Fermi liquid renormalization factor. Inside the Mott insulator regime the Friedel oscillations are absent but the residual screening charge remains finite.

Název v anglickém jazyce

Real-space dynamical mean-field theory of Friedel oscillations in strongly correlated electron systems

Popis výsledku anglicky

We study Friedel oscillations and screening effects of the impurity potential in the Hubbard model. Electronic correlations are accounted for by solving the real-space dynamical mean-field theory equations using the continuous time quantum Monte-Carlo simulations at finite temperatures and using a homogeneous self-energy approximation with the numerical renormalization group at zero temperature. We find that in the Fermi liquid phase both the amplitudes of Friedel oscillations and the screening charge decrease with increasing the interaction and follow the behavior of the Fermi liquid renormalization factor. Inside the Mott insulator regime the Friedel oscillations are absent but the residual screening charge remains finite.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review B

ISSN

2469-9950

e-ISSN

—

Svazek periodika

100

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

1-15

Kód UT WoS článku

000485192700003

EID výsledku v databázi Scopus

2-s2.0-85072801122