Professor

People

Professor

Yoon Seok Oh오윤석

위치108동 501-12호
메일ysoh@unist.ac.kr
전화052-217-2519

Topological Superconductivity
Ferroelectricity
Magnetoelectric
Altermagnet
Quantum Magnet

연구주제

Condensed Matter Physics Experiment

연구분야양자물질, 강유전체, 양자자성체, 차세대 반도체 물질
연구실Next-Gen Qubit and Semiconductor Materials Laboratory

Current Research Interests

Next-Generation Qubit and Semiconductor Materials Laboratory
Our lab is dedicated to the discovery and development of advanced materials that underpin future quantum information technologies and next-generation semiconductor devices. Our research focuses on the design, synthesis, and characterization of quantum materials, semiconductor materials, thin films, and heterostructures that can enable qubit functionalities and emergent quantum phenomena. In particular, we investigate how precise control of defects, spins, charges, lattices, and interfaces can be used to build robust and scalable material platforms for qubit operation, while also exploring their integration with semiconductor processing and device architectures. By combining fundamental studies of material physics with crystal growth, thin-film fabrication, structural and electronic characterization, and device evaluation, our laboratory aims to establish the physical principles and material foundations required for future quantum computing and intelligent semiconductor technologies.
- • Development of optimized oxide-wafer process for alternative and innovative functional oxide single-crystal ingot.
- • Discover of new quantum materials for manipulating large number of quantum states.
- • Low-power/high-performance artificial synaptic materials using multiple polar sates and dielectric memory effect.
- • Quantum phase transition in quantum materials induced by applying high magnetic field, high pressure, and chemical doping around the absolute zero temperature
- • Multiferroics, quantum mechanically induced ferroelectricity, low-dimensional quantum magnets

Biographical Sketch

- Appointments
- • Associate Professor, Department of Physics, UNIST (2021–present)
- • Assistant Professor, Department of Physics, UNIST (2014–2021)
- • Postdoctoral Research Associate, Department of Physics and Astronomy, Rutgers University, USA (2010–2014)
- • Postdoctoral Researcher, Department of Physics, Seoul National University (2010)
- Positions
- • Deputy Executive Director, Editorial Board of Current Applied Physics (CAP), Korean Physical Society (2025–present)
- • Member, Industry–Academia Committee, Korean Dielectrics Society (2025–present)
- • Operating Committee Member for Dielectrics, Division of Condensed Matter Physics, Korean Physical Society (2025–present)
- • International Secretary, Division of Applied Physics, Korean Physical Society (2024–2026)
- • CEO, Quantum Crystal & Technology Co., Ltd. (2021–2025)
- Education
- • Ph.D. in Physics, Seoul National University (2010)
- • M.S. in Physics, Seoul National University (2006)
- • B.S. in Physics, Seoul National University (2004)

Selected Publications

2. 1. Advanced Functional Materials, 2302261 (2023), Polar Perturbations in Functional Oxide Heterostructures
4. 2. Advanced Materials 34, 2205825 (2022), Reversibly controlled ternary polar states and ferroelectric bias promoted by boosting square-tensile-strain
6. 3. Physical Review B 100, 144441 (2019), Unconventional critical behavior in the quasi-one-dimensional S = 1 chain NiTe₂O₅
8. 4. Nature Materials 14, 407 (2015), Experimental demonstration of hybrid improper ferroelectricity and presence of abundant charged walls in (Ca,Sr)₃Ti₂O₇ crystals
10. 5. Nature Communications 5, 3201 (2014), Non-hysteretic colossal magnetoelectricity in a collinear antiferromagnet
12. 6. Physical Review Letters 110, 127209 (2013), Anionic Depolymerization Transition in IrTe₂
14. 7. Physical Review Letters 98, 016401 (2007), Interplay between Fermi Surface Topology and Ordering in URu₂Si₂ Revealed through Abrupt Hall Coefficient Changes in Strong Magnetic Fields