Seminar By Chunjing Jia, University of Florida

Title: Theoretical investigation of strain engineered perovskite nickelates

Series: Condensed Matter Sciences Seminar

Host: Hitesh Changlani

Abstract: Recent discoveries of superconductivity in layered nickelates under pressure and in thin films under epitaxial strain have garnered significant attention. In this talk, I will present our recent theoretical investigations into strain-engineered superconductivity in bilayer nickelates, focusing on the understanding from first-principles calculations and microscopic electronic structure modeling. I will also discuss how these findings align with recent angle-resolved photoemission spectroscopy (ARPES) measurements on superconducting bilayer nickelates in epitaxially strained thin films. In the second part of the talk, I will discuss how artificial intelligence techniques are being utilized to extract material parameters from ARPES data, offering a novel approach to advance the understanding of microscopic materials information in perovskite nickelates and other quantum materials.