7.  Electrical probing of defects in two-dimensional material-based heterostructures

Hyunkyung Lee, Myeongjun Kang, Hayoon Im, Haeyong Kang

Curr. Appl. Phys. 86, 156 (2026) [PDF preprint]

6. Plasmonic polaron in self-intercalated 1T-TiS2

Byoung Ki Choi*, Woojin Choi, Zhiyu Tao, Ji-Eun Lee, Sae Hee Ryu, Seungrok Moon, Hyobeom Lee, Kyoungree Park, Seha Lee, Hayoon Im, Yong Zhong, Hyejin Ryu, Min Jae Kim, Sue Hyeon Hwang, Xuetao Zhu, Jiandong Guo, Jong Mok Ok, Jaekwang Lee, Haeyong Kang, Sungkyun Park, Jonathan D. Denlinger, Heung-Sik Kim, Aaron Bostwick, Zhi-Xun Shen, Choongyu Hwang*, Sung-Kwan Mo*, and Jinwoong Hwang* 

Commun. Mater. (online advance) [PDF preprint]

5. Evidence for strong electronic correlations in the bulk state of grey arsenic

Minhee Kang†, Hayoon Im†, Ji-Eun Lee, Sung-Kwan Mo, Jonathan Denlinger, Kyoo Kim, Pavel Dudin, Jose Avila, Haeyong Kang, Jaekwang Lee, Jong Mok Ok, Xuetao Zhu, Jiandong Guo, and Choongyu Hwang*

J. Korean Phys. Soc. (online advance) [PDF preprint]

4. Unusual ferromagnetic band evolution and high Curie temperature in monolayer 1T-CrTe2 on bilayer graphene

Kyoungree Park†, Ji-Eun Lee†, Dongwook Kim, Yong Zhong, Camron Farhang, Hyobeom Lee, Hayoon Im, Woojin Choi, Seha Lee, Seungrok Mun, Kyoo Kim, Jun Woo Choi, Hyejin Ryu, Jing Xia, Heung-Sik Kim, Choongyu Hwang, Ji Hoon Shim, Zhi-Xun Shen*, Sung Kwam Mo*, and Jinwoong Hwang*

Small 21, e06671 (2025) [PDF preprint] 

3. Band-selective simulation of photoelectron intensity and converging Berry phase in trilayer graphene

Hayoon Im, Sue Hyeon Hwang, Minhee Kang, Kyoo Kim, Haeyong Kang*, and Choongyu Hwang*

Appl. Sci. Converg. Technol. 33(4) 91-95 (2024) [PDF preprint]

2. Controlling structure and interfacial interaction of monolayer TaSe2 on bilayer graphene

Hyobeom Lee†, Hayoon Im†, Byoung Ki Choi, Kyoungree Park, Yi Chen, Wei Ruan, Yong Zhong, Ji-Eun Lee, Hyejin Ryu, Michael F Crommie, Zhi-Xun Shen, Choongyu Hwang*, Sung-Kwan Mo*, and Jinwoong Hwang*  (†: equal contribution)

Nano Converg. 11, 14 (2024) [PDF preprint]

1. Modified Dirac fermions in the crystalline xenon and graphene Moire heterostructure

Suji Im†, Hayoon Im†, Kyoo Kim†, Ji-Eun Lee, Jinwoong Hwang, Sung-Kwan Mo*, Choongyu Hwang* (†: equal contribution)

Adv. Phys. Res. 2, 2200091 (2023) [PDF preprint]

10. Outstanding Poster Presentation Award, Reversible tuning of the electronic and geometric orders in 1T-TaTe2 , 2026 KDS Winter Conference, Muju, South Korea, Feb. 9. 2026

9. Outstanding Oral Presentation Award, Te desorption driven structural transformation and charge order restoration in 1T-TaTe2 , The 4th Joint Workshop for Young Physicists, Muju, South Korea, Feb. 7. 2026

8. Outstanding Poster Presentation Award, Engineering electronic and geometric phases in  1T-TaTe2 via post annealing, The 69th Summer Annual Conference of the Korean Vacuum Society, Jeju, South Korea, Aug. 21. 2025

7. PNU Fellowship, Pusan National University, Jun. 01. 2025

6. Outstanding Oral Presentation Award, Impact of Te Desorption on Structural Transformation and Charge Order Restoration in 1T-TaTe2 thin films, 2025 KPS Spring Meeting, Daejeon, South Korea, Apr. 25. 2025

5. Outstanding Poster Presentation Award, The effect of bilayer graphene substrate on epitaxially grown monolayer TaSe2, 23rd Korea-Taiwan-Japan Symposium on Strongly Correlated Electron System, Busan, South Korea, Mar. 14. 2025

4. Best Research Award, Controlling structure and interfacial interaction of monolayer TaSe2 on bilayer graphene, BK21+ program at PNU Physics, Jan. 4. 2025

3. Outstanding Oral Presentation Award, Experimental evidence of a new ordered phase in 1T-TaTe2, The 66th Winter Annual Conference of the Korean Vacuum Society, Pyeongchang, South Korea, Feb. 16. 2024

2. Outstanding Poster Presentation Award, Formation of the graphene Moire heterostructure using noble gas [16-0731], International Conference on Strongly Correlated Electron Systems (SCES) 2023, Incheon, South Korea, Jul. 6. 2023

1. Outstanding Poster Presentation Award,  Moire heterostructure in graphene by xenon adsorption [P1-ap.221], The Korean Physical Society Spring meeting, Daejeon, South Korea, Apr. 19. 2023