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Berlin 2024 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 80: Correlated Electrons: Poster

TT 80.13: Poster

Donnerstag, 21. März 2024, 15:00–18:00, Poster E

Coherent and screening properties of Dirac electrons — •Max Fischer1, Arianna Poli2, Niklas Wagner1, Alessandro Toschi3, Sergio Ciuchi2, and Giorgio Sangiovanni11Universität Würzburg, Würzburg, Germany — 2Università dell’Aquila, Coppito-L’Aquila, Italy — 3TU Wien, Vienna, Austria

We investigate the quasi-particle transport properties of a model describing interacting Dirac and Weyl semimetals in the presence of local Hubbard repulsion U, where we explicitly include a deviation from the linearity of the energy-momentum dispersion through an intermediate-energy scale Λ.

In particular we analyze the screening processes affecting the local moments in such correlated Dirac semimetals and compare their physics to corresponding Anderson impurity models.

Keywords: Dirac electrons; Local moments; Susceptibilities and vertex corrections; Dynamical mean-field theory; Anderson impurity model

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