Abstract |
Hund metals are paramagnetic phases in which high-spin local configurations dominate. This paradigm is
now a useful guidance to interpret the physics of many transition-metal compounds, like Ruthenates and
Iron-based superconductors. I will show how this physics is extremized by moving towards a half-filled
Mott insulator, and that it gives rise to charge instabilities and heavy fermionic behavior along the way.
A. Georges and G. Kotliar, Physics Today 77, 46 (2024)
M. Chatzieleftheriou et al. Phys. Rev. Lett. 130, 066401 (2023)
M. Crispino et al. ArXiv:2312.06511 (2023) |