Strain tuning of frustrated magnets (C09)

• Subject Area: Experimental Condensed Matter Physics
• Term: since 2019
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 247310070

This project is devoted to tuning frustrated magnets by uniaxial pressure. Owing to its directionality, uniaxial pressure provides a powerful means to manipulate the delicate balance of interactions in frustrated magnets via controlled changes of the lattice symmetry. During the last funding period, novel tools to probe frustrated magnets under uniaxial pressure were successfully implemented, including thermodynamic measurements of the elastocaloric effect and Young’s modulus as well as structure determination using x-ray diffraction. With this unique tool set at hand, the project now aims to explore and understand the impact of uniaxial pressure on ground states of frustrated Mott insulators, their excitations, phase transitions, and critical properties.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1143: Correlated Magnetism: From Frustration to Topology
• Major Instrumentation: 3D optical profiler for strain samples
• Instrumentation Group: 8720 Elektronische und pneumatische Längenmeßgeräte, Wegaufnehmer und Anzeigegeräte
• Applicant Institution: Technische Universität Dresden
• Project Heads: Dr. Elena Gati; Professor Dr. Jochen Geck; Professor Dr. Andrew Mackenzie