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Topological Quantum Matter Engineering Lab

Welcome to Topological Quantum Matter Engineering Lab!!

We are scientific explorers looking for previously-unknown territories in the vast ocean of quantum and topological materials. Our flagship is a uniquely-built hybrid molecular beam epitaxy system capable of creating various artificial materials with atomic precision, supported by a variety of other advanced tools and collaboration teams. With these unique capabilities, we explore a range of hybrid thin film quantum materials including topological insulators, topological superconductors, Weyl/Dirac semimetals, materials for superconducting and topological quantum computation, 2D materials, and correlated oxides, searching for new physics and materials for quantum and topological applications.

If you would like to share the excitement of discoveries while exploring the unknown phase space of quantum and topological materials, you are welcome to join the Topological Quantum Matter Engineering Lab!!

News

(2025) Prof. Seongshik Oh won American Physical Society (APS) fellowship, "For advances in the MBE growth of chalcogenide thin films and defect engineering in 2D materials."

(2025) Prof. John M. Martinis (UC Santa Barbara, Prof. Oh's postdoc supervisor) won Nobel Prize in Physics 2025!!

(2025) Prof. Seongshik Oh, elected as the Chair-Elect (till Dec. 2026) for Topical Group on Quantum Materials Synthesis (GQMS) in APS.

(2025) Prof. Seongshik Oh, named (2022-2024) Top Scholars in the area of Topological Insulator by ScholarGPS: https://scholargps.com/top-scholars?year=2024&ranking_duration=LIFETIME&specialty=Topological+insulator&p=3&e_ref=dff89961d7e1fa7c41a7#48

(2025) Prof. Aravind Devarakonda (Columbia University, undergrad alumnus of our lab) has won the Materials Synthesis Junior Fellowship award from Gordon and Betty Moore Foundation.

(2025) Interview of Prof. Seongshik Oh with "ScienceNews" magazine cited in https://www.sciencenews.org/article/dark-matter-axions-quasiparticles, regarding the recent discovery of an axion-like quasiparticle related to dark matter, in a thin topological quantum material.

(2025) KSEA NJ&NY Youtube interview with Prof. Seongshik Oh, regarding quantum materials and other areas of physics (in Korean): https://youtu.be/phlaKj40Y3o

(2024) Interview with Prof. Seongshik Oh in the KSEA NJ & NY YouTube channel (In Korean): https://www.youtube.com/watch?v=SoMHR8AVXC4&t=16s&ab_channel=KSEANJ%26NY

(2023) Prof. Seongshik Oh with several other colleagues founded Topical Group on Quantum Materials Synthesis in American Physical Society, and started serving as the Vice Chair.

(2023) Three of our recent materials breakthroughs are featured in Army Research Office's 2022 Review, under the title of "High-Temperature and Tunable Quantum Magnetic Materials" [1].

(2022) Dr. Bharath Kannan (undergrad alumnus of our lab) founded Atlantic Quantum as the CEO.

(2022) Our recent work on topological phase transitions probed by higher harmonics is featured in the News and Views article in Nature Photonics: https://www.nature.com/articles/s41566-022-01063-2 And also here: https://www6.slac.stanford.edu/news/2022-08-18-exploring-quantum-electron-highways-laser-light.aspx