Jeongkeun Ryan Song - ORNL

Wednesday 12 Feb 2025, 08:00 → 19:15 US/Eastern

IAMM

Jeongkeun Ryan Song is a postdoctoral researcher in MSTD, ORNL. His research interested is atomic-scale control of oxide interfaces, emergent quantum phenomena in strongly correlated systems, and magnetotransport in antiferromagnetic oxide thin film and its application for quantum sensor and device applications.

https://www.ornl.gov/staff-profile/jeongkeun-song

08:30 → 09:00 Pick up at hotel

Travel to IAMM.

09:00 → 10:00 Research Meeting

Speaker: Wonhee Ko (University of Tennessee, Knoxville)

10:00 → 10:20 Talk Prep

10:20 → 11:20 Seminar: Exotic magnetotransport in correlated topological oxide heterostructures

Oxide heterostructures have been a central topic of research over the past few decades due to their correlated phenomena with intriguing electronic and magnetic properties, including high-temperature superconductivity, colossal magnetoresistance, multiferroicity, etc. The recent introduction of band topology into these correlated systems has enabled new insights into creating novel quantum phenomena and materials, such as Weyl and Dirac semimetals, axion insulators, and topological Mott insulators. However, the progress in experimental realization is largely hindered by the difficulties in synthesizing high quality materials and the lack of suitable experimental probes. In this talk, we will present magnetotransport as a versatile and sensitive means to probe and understand topological states in oxide heterostructures. Furthermore, we will discuss about how epitaxial strain can reveal hidden topological states, particularly in 5d iridates. The unique quantum transport properties, including the anomalous Hall effect and planar Hall effect, that emerge from their correlated and topological nature will be discussed.

11:30 → 12:00 Research Meeting

Speaker: Joon Sue Lee (University of Tennessee, Knoxville)

12:00 → 13:30 Lunch

Attendee: Wonhee Ko, Jian Liu, Joon Sue Lee, Ruixing Zhang

13:30 → 14:00 Research Meeting

Speaker: Jian Liu (University of Tennessee)

14:00 → 14:30 Research Meeting

Speaker: Rahul Soni (University of Tennessee-Knoxville)

14:30 → 15:00 Research Meeting

15:00 → 15:30 Research Meeting

15:30 → 16:00 Research Meeting

16:00 → 16:30 Research Meeting

16:30 → 17:00 Research Meeting

17:00 → 17:30 Research Meeting

17:45 → 19:15 Dinner

Attendee: Wonhee Ko,