Eun-Ah Kim, professor in the Department of Physics in the College of Arts and Sciences, is part of a transdisciplinary team at the Argonne National Laboratory that is developing tools to reveal the unobserved, hidden order in quantum materials. An article on the Cornell Research website details the machine-learning tools she and other researchers are developing, which can identify multiple order parameters in x-ray scattering by monitoring their variation as a function of temperature.
“The electrons in quantum materials strongly interact and influence one another’s behavior,” the article explains. “In addition, some materials have significant spin-orbit coupling, in which electrons’ spins are coupled with their own orbital momenta. Researchers predict that spin-orbit coupling will generate exotic forms of cooperative electron ordering that should alter the material’s crystal structure.”