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TT: Fachverband Tiefe Temperaturen

TT 50: Correlated Electrons: Frustrated Magnets - Theory

TT 50.12: Vortrag

Mittwoch, 9. März 2016, 18:15–18:30, H18

Coulomb spin liquid on the honeycomb lattice — •Jorge Armando Rehn¹, Arnab Sen², Kedar Damle³, and Roderich Moessner¹ — ¹Max Planck Institute for the Physics of Complex Systems, Dresden, Germany — ²Indian Association for the Cultivation of Science, Kolkata, India — ³Tata Institute of Fundamental Research, Mumbai, India

This talk will present a study of the maximally frustrated classical Heisenberg model on the honeycomb lattice which displays a Coulomb spin liquid phase of a new kind, where emergent gauge charges live on a triangular lattice, and, upon dilution with non-magnetic impurities, this model exhibits new fractionalized objects carrying 1/3 of the moment of the original spins. A zero temperature effective theory for these fractionalized, Coulomb vector charges, will be presented, which represents a new kind of Coulomb spin model presenting a glassy phase.