Ultrafast Raman scattering of the cuprate Bi2212 in the superconducting and antiferromagnetic states
Author: Nilforoushan, Niloufar
Affiliation: Université Paris Cité
Type: Contributed Talk
Session: Ultrafast and spectroscopic probes of quantum materials
Date and Time: 24.07.2026, 09:55 - 10:15
In my talk, I will present recent ultrafast Raman scattering results of the out-of-equilbrium dynamics of the cuprate Bi2212. In the superconducting state, I will show that the dynamics of the anti-nodal quasiparticles across the photo-induced superconducting to normal state transition follows a non-thermal pathway. Using ultrafast Raman thermometry I will also discuss the possible fingerprints of a dichotomy in the relaxation between of nodal and anti-nodal quasiparticles. In the antiferromagnetic Mott phase, the ultrafast Raman data allows to track the magnetic and charge degrees of freedom of the photo-doped state. Remarkably, the photo-doped charge carriers are confined to the nodal region mimicking the Fermi arc phenomenology known from equilibrium measurements. The simultaneous dynamics of magnon will be discussed in light of effective temperature theories of charge and spin degrees of freedom in photo-doped Mott insulators.