• 2025-present: professor, School of Materials Science and Engineering, Peking University • 2024-present: professor and Director of Low-Dimensional Quantum Materials Institute at
Hubei University of Technology • 2023-present: Distinguished HCR professor, Department of Physics, Sungkyunkwan University • 2012–2023: Director of Center for Integrated Nanostructure Physics, Institute for Basic Science • 2021-present: Chinese Academy of Sciences, China, Academician • 2009–2023: Professor in energy science, Sungkyunkwan University • 2007–Present:
Korean Academy of Science and Technology (KAST), member • 2001–Present: Professor in physics, Sungkyunkwan University, SKKU fellow • 1996–1997: Visiting professor in physics, Michigan State University, United States • 1993–1993: Visiting researcher, Zurich IBM Research Center, Switzerland • 1989–1990: Visiting professor in physics, Iowa State University Ames National Laboratory, United States • 1987–2001: Assistant Professor, full professor in physics,
Chonbuk National University ==Awards==