Beijing Academy of Quantum Information Sciences

Home>People>Research Scientists
Su Kong Chong
Su Kong Chong

Assistant Research Scientist
Division of Quantum State of Matter
Email: sukongc@baqis.ac.cn

Dr. Su Kong Chong joined BAQIS in 2023. Previously, he was a postdoctoral scholar at ECE, University of California, Los Angeles (UCLA) (2020-2022), working with Prof. Kang L. Wang on the electrical and mechanical tuning of topological quantum materials. Dr. Chong earned his Doctoral degree in Physics from the University of Utah (2015-2020), under the supervision of Prof. Vikram V. Deshpande, with a dissertation titled “Quantum transport in topological insulators-based van der Waals heterostructures”. He completed his Master degree in Physics from the University of Malaya (2009-2012) under the co-supervision of Prof. Saadah Abdul Rahman and Prof. Chang Fu Dee. He was awarded the University of Utah Swigart Graduate Scholarship in 2019. 




Selected Journal Publications

1Refer to Google Scholar or Research Gate for the full publication list.

( signifies first author, * signifies corresponding author)

1       S. K. Chong*, L. Chao, Y. Cheng, S. H. Lee, Z. Mao, A. H. MacDonald & K. L. Wang*, “Exchange-Driven Chern States in High Mobility Intrinsic Magnetic Topological Insulators,” Phys. Rev. Lett. 132, 146601 (2024). Selected as Cover Article


image.png

1       S. K. Chong1*, Y. Cheng1, H. Man, S. H. Lee, B. Dai, M. Tanabe, T.-H. Yang, Z. Mao, K. Moler & K. L. Wang*, “Intrinsic Exchange Biased Anomalous Hall Effect in an Uncompensated Antiferromagnet MnBi2Te4,” Nat. Commun. 15, 2881 (2024).

2       S. K. Chong1*, L. Chao1, S. H. Lee, J. Jarosynski, Z. Mao, A. H. MacDonald & K. L. Wang*, “Anomalous Landau Quantization in Intrinsic Magnetic Topological Insulators,” Nat. Commun. 14, 4805 (2023).

3       S. K. Chong1*, P. Zhang1 J. Li1, Y. Zhou, J. Wang, H. Zhang, C. Eckberg, P. Deng, L. Tai, A. V. Davydov, J. Xia, R. Wu & K. L. Wang*, “Electrical Manipulation of Topological Phases in Quantum Anomalous Hall Insulator,” Adv. Mater. 35, 2207622 (2023).

4       S. K. Chong*, L. Liu, F. Liu, T. D. Sparks & V. V. Deshpande*, “Emergent Helical Edge States in a Hybridized Three-Dimensional Topological Insulator,” Nat. Commun. 13, 6386 (2022).

5       S. K. Chong & V. V. Deshpande*, “van der Waals Heterostructures based on Three-Dimensional Topological Insulators,” Curr. Opin. Solid State Mater. Sci. 25, 100939 (2021). Invited Review Article

6       S. K. Chong, R. Tsuchikawa, J. Harmer, T. D. Sparks & V. V. Deshpande*, “Landau Levels of Topologically-Protected Surface States Probed by Dual-Gated Quantum Capacitance,” ACS Nano 14, 1158 (2020).

7       S. K. Chong, K. B. Han, T. D. Sparks & V. V. Deshpande*, “Tunable Coupling between Surface States of a Three-Dimensional Topological Insulator in the Quantum Hall Regime,” Phys. Rev. Lett. 123, 036804 (2019). Media coverage: MRS Bulletin Dec 16, 2019 “Thinness of 3D topological insulators detrimental to their metallic surfaces”, University of Utah media release “Limitation exposed in promising quantum computing material”

8       S. K. Chong, K. B. Han, A. Nagaoka, R. Tsuchikawa, R. Liu, H. Liu, Z. V. Vardeny, D. A. Pesin, C. Lee, T. D. Sparks & V. V. Deshpande*, “Topological Insulator-Based van der Waals Heterostructures for Effective Control of Massless and Massive Dirac Fermions,” Nano Lett. 18, 8047 (2018).

9       K. B. Han1, S. K. Chong1, A. O. Oliynyk, A. Nagaoka, S. Petryk, M. Scarpulla, V. V. Deshpande & T. D. Sparks*, “Enhancement in Surface Mobility and Quantum Transport of Bi2-xSbxTe3-ySey Topological Insulator by Controlling the Crystal Growth Conditions,” Sci. Rep. 8, 17290 (2018).

Conferences and Invited Talks

1       Invited talk: “Electrical and Mechanical Tuning of Topological Phase Transition in Magnetic Topological Insulators,” presented at 2023 Bi-Annual Workshop, Center of Excellence for Green Nanotechnologies (CEGN), Mar 14-16, 2023, UCLA, CA, USA.

2       Focus Session talk: “Pressure Tuning of Electronic and Magnetic Properties in a Topological Antiferromagnet,” 2023 APS March Meeting, Mar 5-10, 2023, Las Vegas, LV, USA.

3       Invited talk: “Quantum Transport in Topological Insulator-based van der Waals Heterostructures,” BAQIS Quantum Science Forum (virtual), May 31, 2022, BAQIS, Beijing, CN.

4       Focus Session talk: “Coexistence of Chern Band and Landau Quantization in Intrinsic Magnetic Topological Insulator,” 2022 APS March Meeting, Mar 14-18, 2022, Chicago, IL, USA.

5       Contributed talk: “Topological Phase Transitions in a Hybridized Three-Dimensional Topological Insulator,” 2020 APS March Meeting, Mar 2-6, 2020, Denver, CO, USA.

6       Invited talk: “Quantum Transport in Topological Insulator-based van der Waals Heterostructures,” Condensed Matter Seminar, Oct 22, 2019, Duke University, Durham, NC, USA.

7       Contributed talk: “Landau Levels of Topological Surface States Probed by Quantum Capacitance,” 2019 APS March Meeting, Mar 4-8, 2019, Boston, MA, USA.

8       Contributed talk: “Van der Waals Heterostructures of Insulator/Topological Insulator/Insulator for Dual-Gated Quantum Capacitance,” 2018 APS March Meeting, Mar 5-9, 2018, Los Angeles, CA, USA.

9       Contributed talk: “Quantum Hall Effect in Dual-Gated BiSbTeSe2 Topological Insulator,” 2017 APS March Meeting, Mar 13-17, 2017, New Orleans, LA, USA.

10    Conference talk: “Synthesis of Indium-Catalyzed Si Nanowires by Hot-Wire Chemical Vapor Deposition Technique: the Role of Filament Temperature,” International Conference on Materials for Advanced Technologies 2011, Jun 29-Jul 1, 2011, Suntec, Singapore.

Funding and Support

1.     PI: “Magnetoelectrical Coupling in Magnetic Topological Insulators Created by Strain Engineering”, Beijing Natural Science Foundation International Scientist Project 2023, 10/2023-09/2024.

2.     Co-PI: “Spatially Resolved Characterization and in situ Tuning of the Local Electronic States in Topological Quantum Computing Devices”, Innovation Program for Quantum Science and Technology, 04/2024-03/2029.

3.     Participant: “Study of Magnetic Phases in Intrinsic Magnetic Topological Insulators using Scanning SQUID” Staff Research Proposal for Scanning SQUID Measurement experiments utilizing equipment in the Stanford Nano Shared Facilities (Granted for 2022).

4.     User: “Quantum Transport in Magnetic Topological Insulators and Semimetals”, National High Magnetic Field Laboratory Proposal for usage of 45T magnet (Granted for 2021-2024).

5.     User: “Topological and Weyl Superconductor for Spintronics” Penn State 2D Crystal Consortium for bulk crystal materials request, started from 2020.

6.     Participant: “QII-TAQS: Quantum Devices with Majorana Fermions in High-Quality 3D Topological Insulator Heterostructures”, NSF Quantum Idea Incubator Grant, 09/2019-08/2023.

7.     User: “Search for Interaction Effects in Dual-Gated Topological Insulators in the Quantum Hall Regime”, National High Magnetic Field Laboratory Proposal for usage of 45T magnet (Granted for 2017-2020).

8.     PI: “Preparation and Characterization of Silicon Nanowires Growth by Chemical Vapor Deposition Technique” University of Malaya Postgraduate Research Fund (PPP), Cycle 2/2009 (PS310/2009B) and Cycle 3/2011 (PV019/2011B).

Professional Service

§  Editor: Review editor of Frontiers in Physics

§  Reviewer for Nature Physics, Science Advances, Nano Letters, Applied Physics Letters, Scientific Reports, Journal of Physical Chemistry C, Nanotechnology, ACS Applied Nano Materials, Microporous and Mesoporous Materials, Journal of Alloys & Compounds, etc.

§  Service: Session Chair for APS March Meeting 2019 

§  Membership: Materials Research Society (MRS), Singapore 2011-2013; American Physical Society (APS) 2016-2023; UAW 5810: The Union of Postdoc and Academic Researchers, University of California 2020-2023.