Byoung Ki Choi is a researcher at the Advanced Light Source (ALS) at Lawrence Berkeley National Laboratory (LBNL), specializing in film synthesis using molecular beam epitaxy (MBE) and pulsed laser deposition (PLD), as well as synchrotron-based angle-resolved photoemission spectroscopy (ARPES). His work focuses on strongly correlated systems, which exhibit phase transitions, charge density waves, topologically non-trivial properties, and many-body interactions. He studies these fundamental physical properties to advance the understanding of materials for neuromorphic devices.