SPICE Workshop on Non-equilibrium Quantum Materials Design, June 27th - 29th 2023
Marios H. Michael
Light control of materials is a leading frontier in Condensed Matter research, aiming to create new material properties at will. One of the most ambitious goal in this field is to photo-induce superconductivity above Tc. I will discuss how coupling phonons to inter-band electron transitions can drive a paradigm shift in this field. This coupling naturally generates attraction proportional to phonon fluctuations, which can be enhanced through driving. Resonant amplification of this attraction occurs when the electronic gap and phonon frequency align closely in energy. I will present how this model can explain long-lived superconductivity observed in pumped K3C60 and then explain how this simple model can be used to explicitly design new photo-induce superconducting devices using 2D materials coupled to surface plasmons.
https://arxiv.org/abs/2303.15355 : Mechanisms for Long-Lived, Photo-Induced Superconductivity, Sambuddha Chattopadhyay ... Marios H. Michael