Relève étoile Louis-Berlinguet 
October 2019

Gaël Grissonnanche

Postdoctoral fellow in Physics
Université de Sherbrooke

Award-winning publicationGiant thermal Hall conductivity in the pseudogap phase of cuprate superconductors

Published in: Nature


Cuprates are superconducting materials that have held the promise of a technological revolution in green energy transmission and storage for the past 30 years. The very point at which the superconductivity of cuprates strengthens is where the pseudogap—the phase that holds the secrets of this exceptional superconductivity—lies. The research led by Gaël Grissonnanche details an innovative experimental technique known as thermal Hall conductivity. Indeed, a giant thermal Hall signal has elucidated the pseudogap and revealed it to be a nursery for the particles born of the powerful interactions between the electrons in the cuprates.