Controlling quantum magnetism in strongly correlated oxide thin films

Speaker : Ludi Miao

Title: Controlling quantum magnetism in strongly correlated oxide thin films

Abstract: Over the past years, novel quantum phenomena in strongly correlated magnetic materials have garnered tremendous attention for their huge implications in information storage and logic technology applications. At the heart of this theme, lie two engineering challenges: the manipulations of magnetic anisotropies as well as topology in the electronic band structures. Due to the lack of accessible controlling parameters, these manipulations have been challenging and indirect.
In this talk, I will present our studies on manipulating the magnetic anisotropies and the band topologies in strongly correlated ruthenate thin films using local lattice deformation induced by chemical doping. Combining local structural analysis using scanning transmission electron microscopy as well as first principle calculations, we found that the abrupt change in oxygen octahedral rotation patterns in the lattice structures plays a key role. These results not only construct important insights in engineering quantum magnetism in strongly correlated systems but also provide an ideal platform for magnetic device applications in information technology.

Bio: Aug 2023- present, Assistant Professor, New Mexico State University, Las Cruces, NM
Nov 2022 – July 2023, Assistant Research Scientist, University of Maryland, University Park, MD
Sep 2017 – Sep 2022, Postdoctoral Associate, Cornell University, Ithaca, NY
Jun 2014 – Jul 2017, Postdoctoral Researcher, Pennsylvania State University, State College, PA
Aug 2008 – May 2014, Ph.D. in Physics, Tulane University, New Orleans, LA Advisor: Prof. Zhiqiang Mao and Prof. Daeho Kim
Sep 2004 – Jul 2008, B.S. in Physics, Peking University, Beijing, China

Zoom info.
https://texastech.zoom.us/j/93630266227?pwd=NFBiVG5NN1dhM21weGRqOW9pdGFhZz09 
Meeting ID: 936 3026 6227
Passcode: 004996