Anomalous magnetoelasticity in altermagnets and antiferromagnets (A09)

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

The project will investigate primarily the recently discovered altermagnetic class of materials with compensated magnetic order, focusing on the strong coupling between crystal structure and magnetism. The project will identify unique magnetic–shear strain cross-effects characteristic of altermagnets and their unconventional magnetic order. We will search for altermagnetic material candidates, identify their magnetic ground state properties, and calculate the electronic structure coupling to strain from first principles, such as pressure-induced altermagnetism. The unconventional piezomagnetic and anomalous Hall response of these selected altermagnets with strong magnetoelastic coupling will be also calculated.

• 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 Heads: Professorin Dr. Olena Gomonay, until 6/2024; Professor Jairo Sinova, Ph.D.; Dr. Libor Smejkal, since 7/2024