Anthony J Leggett Institute for Condensed Matter Theory Seminar - Sukbum Chung (University of Seoul), "Spin transport signature of ferroelectric fluctuation"
- Event Type
- Seminar/Symposium
- Sponsor
- Physics - The Anthony J Leggett Institute for Condensed Matter Theory
- Location
- ESB 190
- Date
- Oct 27, 2025 12:00 - 1:00 pm
- Views
- 65
Abstract: Recent years have seen renewed interest in physical systems with strong ferroelectric fluctuation. The long-known case of SrTiO3 has been investigated experimentally and theoretically for possible relation with superconductivity. Additionally, new examples have been identified in recent years among the van der Waals materials; ferroelectric fluctuation in some of them are expected to be tunable throughstrain. I will discuss a transport signature of such fluctuations, namely the electrically induced spin current, even in absence of any inversion symmetry breaking, if the electric field is inhomogeneous. Such spin current proportional to a second derivative of an electric field with distinct quadrupolar characteristics, and can be induced by both the longitudinal and the transverse electric field.
Zoom Link: https://illinois.zoom.us/my/icmt.seminar?pwd=ZU1KbnBLeXZLUmJKc0oyU205cDNDdz09
Meeting ID: 791 382 8328
Password: 106237