Professors

• · 2012 Ph.D. in Physics, University of Illinois at Urbana-Champaign
• · 2005 M.S. in Physics, University of Illinois at Urbana-Champaign
• · 2004 B.S., Summa cum laude, in Physics, Seoul National University

• · 2012-2018 Moore Foundation Postdoctoral Fellow, MIT

We perform quantum-enhanced sensings and measurements on quantum condensed matter systems, such as topological supercoductivity, exotic quantum Hall phases, and strongly interacting electrons in various 'engineered' quantum materials.
One of the ultimate goals of our research is to understand and control the quantum many-body interactions to the point where we are able to realize 'designer' quantum (condensed matter) systems.

1. Unconventional Hysteretic Charge Filling in Moiré-Reconstructed Helical Trilayer Graphene, Hangyeol Park+, Junhyeok Oh+, Rasoul Ghadimi, Chiranjit Mondal, Yungi Jeong, Won Beom Choi, Kenji Watanabe, Takashi Taniguchi, Bohm-Jung Yang* and Joonho Jang*, Advanced Science 0:e75919 (2026)
2. Interaction of moiré-induced quantum Hall channels in a locally gated graphene junction, Won Beom Choi, Myungjin Jeon, K. Watanabe, T. Taniguchi, Joonho Jang*, 2D Materials 13, 011002 (2026)
3. Local thermodynamic DOS measurement and twist-angle mapping in graphene-hBN superlattices, Namkyung Lee*, Hangyeol Park*, Seungwon Jung, Baeksan Jang, Seonyu Lee, and Joonho Jang*, Applied Physics Letters 128, 013101 (2026)
4. Interplay of valley, layer and band topology towards interacting quantum phases in moiré bilayer graphene, Yungi Jeong, Hangyeol Park, Taeho Kim, K. Watanabe, T. Taniguchi, Jeil Jung, Joonho Jang*, Nature Communications 15, 6351 (2024)
5. Characterizaton of a graphene-hBN superlattice field effect transistor, Won Beom Choi, Youngoh Son, Hangyeol Park, Yungi Jeong, Junhyeok Oh, K. Watanabe, T. Taniguchi, Joonho Jang*, Applied Physics Letters 125, 033503 (2024)
6. Quantum spin nematic phase in a square-lattice iridate, Hoon Kim, Jin-Kwang Kim, Junyoung Kwon, Jimin Kim, Hyun-Woo J. Kim, Seunghyeok Ha, Kwangrae Kim, Wonjun Lee, Jonghwan Kim, Gil Young Cho, Hyeokjun Heo, Joonho Jang, C. J. Sahle, A. Longo, J. Strempfer, G. Fabbris, Y. Choi, D. Haskel, Jungho Kim, J. -W. Kim & B. J. Kim, Nature 625, 264 (2024)