Strain effects in thin films of correlated intermetallic compounds (A04)

• Subject Area: Experimental Condensed Matter Physics
• Term: since 2020
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 422213477

The project will concentrate on materials with pronounced spin-lattice coupling and intertwined crystal symmetry and magnetic order in the form of epitaxial thin films grown by molecular beam epitaxy. In particular, we will focus on the non-collinear ferromagnet LaMn2Ge2 that shows a large topological Hall effect in single crystals, the new intermetallic compound EuPdSi3 that lacks a mirror plane in comparison to the valence-crossover compound EuPd2Si2 and features two antiferromagnetic phase transitions, and Mn5Si3 with the aim to engineer a strain-induced altermagnetic state by a novel Si-membrane based pressure tuning approach. Coupling of dipolar magnons to surface acoustic waves and non-reciprocity effects will be studied in the La-Mn-Ge thin films.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 288: Elastic Tuning and Response of Electronic Quantum Phases of Matter (ELASTO-Q-MAT)
• Applicant Institution: Goethe-Universität Frankfurt am Main
• Project Head: Professor Dr. Michael Huth