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Media type:
E-Article
Title:
Turbulent hydrodynamics in strongly correlated Kagome metals
Contributor:
Di Sante, Domenico;
Erdmenger, Johanna;
Greiter, Martin;
Matthaiakakis, Ioannis;
Meyer, René;
Fernández, David Rodríguez;
Thomale, Ronny;
van Loon, Erik;
Wehling, Tim
Published:
Springer Science and Business Media LLC, 2020
Published in:
Nature Communications, 11 (2020) 1
Language:
English
DOI:
10.1038/s41467-020-17663-x
ISSN:
2041-1723
Origination:
Footnote:
Description:
<jats:title>Abstract</jats:title><jats:p>A current challenge in condensed matter physics is the realization of strongly correlated, viscous electron fluids. These fluids can be described by holography, that is, by mapping them onto a weakly curved gravitational theory via gauge/gravity duality. The canonical system considered for realizations has been graphene. In this work, we show that Kagome systems with electron fillings adjusted to the Dirac nodes provide a much more compelling platform for realizations of viscous electron fluids, including non-linear effects such as turbulence. In particular, we find that in Scandium Herbertsmithite, the fine-structure constant, which measures the effective Coulomb interaction, is enhanced by a factor of about 3.2 as compared to graphene. We employ holography to estimate the ratio of the shear viscosity over the entropy density in Sc-Herbertsmithite, and find it about three times smaller than in graphene. These findings put the turbulent flow regime described by holography within the reach of experiments.</jats:p>