Regensburg 2016 – wissenschaftliches Programm
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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.