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 17.6: Hauptvortrag
Dienstag, 21. März 2017, 13:45–14:15, HSZ 04
Nuclear Probes on Frustrated Magnets — •Philippe Mendels — Lab. Physique des Solides, Univ. Paris-Sud, Orsay, France
NMR and µSR are two local powerful probes which often complement thermodynamic and neutron studies. I will first briefly introduce these two techniques and the parameter ranges (pressure, temperature, field) in which they can operate. I will then show how they give access to important information in the case of frustrated magnets: magnetic ordering, phase diagrams and magnetic fluctuations, spin liquid phases, field induced spin textures, opening of spin gaps. This will cover various up to date cases, triangular magnets, quantum spin ice, spin liquids... In the last part of my talk, I will show on one emblematic example of a kagome antiferromagnet, herbertsmithite, ZnCu3(OH)6Cl2, how NMR can separate the contribution of defects from that of intrinsic properties and the unique outcomes which such experiments can bring.