Carleton Physics grad Berit Goodge ’16 would like to talk to current students about research that she’s been working on. You can check things out on Wednesday the 6th during 6a (3:10 pm) via the zoom link at the bottom of the post.
“Atoms and EELS: probing novel materials at the lattice scale with scanning transmission electron microscopy”
A brief abstract:
“Atoms are the building blocks of the universe” has never been more true than in novel atomically-engineered quantum materials. Modern synthesis techniques can fabricate precisely controlled crystals and heterostructures to stabilize all manner of exotic phenomena, including unconventional superconductivity, multiferroicity, spintronics, and more. Each of these properties rely on careful tuning of the crystalline lattice — including not just the “correct” parts, but also the defects! Such atomic-scale engineering necessarily requires atomic-scale characterization. The scanning transmission electron microscope (STEM) is a powerful tool for probing these materials at the lattice scale. After a brief introduction to the instrument, I’ll give a few examples of some recent experiments using STEM together with electron energy loss spectroscopy (EELS) to explore both the materials science and fundamental condensed matter physics of two exotic superconductors, Sr2RuO4 and (Nd,Sr)NiO2. Come for the images, stay for the terrible attempts at humor!