Dresden 2026 – scientific programme

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MA: Fachverband Magnetismus

MA 48: Magnonics II

MA 48.5: Talk

Thursday, March 12, 2026, 16:00–16:15, HSZ/0004

Uniaxial strain response of antiferromagnetic magnons — •Manuel Knauft, Arthur von U.-S. Schwark, Matteo Minola, and Bernhard Keimer — Max Planck Institute for Solid State Research, Stuttgart, Germany

With the suggested paradigm shift away from conventional transistors towards lower loss devices, magnonics has attracted considerable attention in recent years. Generation, manipulation and detection of magnons are prerequisites for successful integration into microstructured chips. One potential phase space parameter to control magnon behavior is strain. In particular, in antiferromagnetic iridates with perovskite structure, it has recently been shown that the magnon energy can be varied by as much as 40% with small uniaxial strain of about 0.1% [1]. These ideas can also be extended to spatially inhomogeneous strain environments. We will demonstrate ideas of guiding magnons through bending single crystals and show results of finite element simulations and confocal Raman scattering.

[1] Kim et al., Nat. Commun. 13, 6674 (2022)

Keywords: Magnonics; Antiferromagnetism; Iridates