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Dresden 2017 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 17: PhD Symposium: Quantum Magnets: Frustration and Topology in Experiment and Theory (jointly with Young DPG (jDPG)

MA 17.1: Hauptvortrag

Dienstag, 21. März 2017, 09:45–10:30, HSZ 04

Frustrated Quantum Magnets: Theory — •Matthias Vojta — Technische Universität Dresden, Germany

This tutorial will cover theoretical concepts of frustrated magnetism. It will start from the classical degeneracies induced by strong geometric frustration, discuss order-by-disorder phenomena, and lay out ideas for quantum spin liquids. The emergence of fractionalized excitations and artificial gauge fields will be discussed using explicit microscopic models. Physical signatures of these emergent phenomena will be highlighted. Further topics will include frustration in metallic systems, quantum phase transitions in the presence of frustration, and the role of quenched disorder. Throughout the talk, links to concrete materials will be pointed out.

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DPG-Physik > DPG-Verhandlungen > 2017 > Dresden