Speaker
Description
In strongly correlated systems, the coupling between different degrees of freedom opens the prospect to manipulate one by selectively driving another — a strategy made accessible on ultrafast timescales by the advent of intense laser technologies. In quantum magnets, intense THz pulses have been used to drive the lattice far from equilibrium to study magnetoelastic phenomena. However, the prediction of the out-of-equilibrium magnetoelastic phenomena and the interpretation of the experimental data require thorough understanding and reliable models of the magnetic interactions and the phonon spectra — usually obtained from density functional theory (DFT), which has well-known shortcomings when it comes to getting quantum magnetism right and requires rigorous experimental validation. I will present how we combine inelastic neutron scattering (INS) with state-of-the-art DFT calculations to meet these requirements.
References:
[1] L. Spitz et al., Phys. Rev. B 112, 184302 (2025)
[2] F. Pisani, L. Spitz, L. Vojacek et al., arxiv:2604.13751 (2026)
| Type of presence | Presence online |
|---|