Education
Ph. D. in Physics, Seoul National University (2005)
M.Sc. in Physics, Seoul National University (1999)
B.Sc. in Physics, Seoul National University (1997)
Research Interests
Topological quasiparticles, chiral solitons, and symmetry-protected excitations in low-dimensional electronic systems
Strongly correlated phenomena including excitonic insulating phases, charge density waves, and flat-band physics
Atomic-scale structure–electronic property relationships in quasi-1D and 2D materials at low temperatures
Edge, domain-wall, and interface electronic states in van der Waals heterostructures and reconstructed surfaces
Strain, electric-field, and polymorphic phase control of 2D/TMDC materials for functional device architectures
Major Research Archievement
Identified unscreened polaron ordering on mechanically cleaved perovskites (2025)
Established electric-field–driven tunable electronic responses in correlated TMDC systems (2024, 2025)
Clarified dimensional crossover and CDW-network reconstruction in layered correlated materials (2015, 2023)
Found topological chirality reversal and emergent domain-wall electronic states in CDW systems (2020, 2023)
Demonstrated chiral solitons in coupled Peierls chains as topological information carriers (2012, 2015, 2017, 2022)
Advanced multi-probe and low-temperature STM/STS methodologies for nanoscale transport (2007, 2010, 2012)
Research Career
2025-Now Professor, Dep. of Physics, POSTECH
2021-2022 Visiting Scholar, Dep. of Physics, The University of Tennessee at Knoxville
2018-2025 Associate Professor, Dep. of Physics, POSTECH
2013-2018 Assistant Professor, Dep. of Physics, POSTECH
2010-2013 Collegiate Assistant Professor, Dep. of Physics, POSTECH
2006-2010 Postdoctoral Research Associate, Center for Nanophase Materials Sciences, Oak Ridge National Lab.
