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Berlin 2024 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 40: Frustrated Magnets II

MA 40.7: Vortrag

Donnerstag, 21. März 2024, 16:45–17:00, H 1058

Irrational moments and higher-rank gauge theories in diluted classical spin liquids — •Rafael Alvaro Flores Calderon1, Owen Benton2, and Roderich Moessner11Max Planck Institute for the Physics of Complex Systems, Nöthnitzer Strasse 38, 01187 Dresden, Germany — 2School of Physical and Chemical Sciences, Queen Mary University of London, London, E1 4NS, United Kingdom

Classical spin liquids (CSLs) have proved fruitful for the emergence of exotic gauge theories. Vacancy clusters in CSLs can introduce gauge charges into the system, and the resulting behavior in turn reveals the nature of the underlying theory. We study these effects for a series of CSLs on the honeycomb lattice. We find that dilution leads to the emergence of effective free spins with tuneable, and generally irrational, size. For a specific higher-rank CSL, described by a symmetric tensor gauge fields, dilution produces non-decaying spin textures with a characteristic quadrupolar angular structure, and infinite-ranged interactions between dilution clusters.

Keywords: Spin liquid; Dilution effects; Emergent gauge theory; Fractons; Strong interactions

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