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Woojin Choi
Bachelor's & Master's programs in Physics,
Kangwon National University, Chuncheon, Korea (B.Sc:2021.03.~/M.Sc:2024.09.~)
· E-mail: woojin@kangwon.ac.kr
· Address: Room 105, Building 5, College of Natural Sciences, Kangwon National University, Korea
"Links to the full text and citation metrics can be found here."
(Updated 07/01/2026)
Professional Experience
• Graduate researcher, Correlated Artificial Two-dimensional materials Laboratory, Kangwon National University, Chuncheon, Korea (2024.09.~)
Advisors: Prof. Jinwoong Hwang (KNU)
• Undergraduate researcher, Department of Physics, Kangwon National University, Chuncheon, Korea (2023.03.~2024.08.)
Advisors: Prof. Jinwoong Hwang (KNU)
Education
• Doctor of Philosophy in Physics: Kangwon National University, Chuncheon, Korea (2026.09.~)
• Master of Science in Physics: Kangwon National University, Chuncheon, Korea (2024.09.~2026.08.)
• Bachelor of Science in Physics: Kangwon National University, Chuncheon, Korea (2021.03.~2024.08.)
Research interests
• Using Angle-Resolved Photoemission Spectroscopy (ARPES):
Investigation of electronic structures and quasiparticle dynamics in quantum materials,
including two-dimensional (2D) materials and strongly correlated electron systems.
Awards and Honors
• Selected for the 2026 Next Generation Young Researchers Program:
Network Joint Research Center for Materials and Devices, Japan (Apr. 1, 2026)
• Outstanding Poster Award: 2026 Workshop of PNU Physics, HU RIES, and HU Physics (Jan. 20, 2026)
• Outstanding Master’s Scholarship (Science and Engineering): Korea Student Aid Foundation (Dec. 18, 2025)
• Outstanding Poster Award: The Korean Physical Society Fall Meeting (Oct. 23, 2025)
• Outstanding Poster Award: The 1st Semiconductor Physics Academic Festival in Kangwon National University (Sep. 26, 2025)
• Outstanding Poster Award: The 16th Applied Physics Symposium (Aug. 26, 2025)
• Outstanding Oral Award: The Korean Physical Society Spring Meeting (Apr. 25, 2025)
• Outstanding Oral Award: The Graduate Research Presentation in Kangwon National University (Nov. 27, 2024)
• Outstanding Poster Award: The Korean Physical Society Fall Meeting (Oct. 25, 2024)
• Outstanding Oral Award: The Undergraduate Thesis Presentation in Kangwon National University (Jun. 7, 2024)
Publications (*: corresponding authors, †: equal contribution)
6. Strain tuning of quasidegenerate charge-density wave phases in 1T-TiSe2
Seungrok Mun, Woojin Choi, Hayoon Im, Sung-Kwan Mo, Choongyu Hwang, Jinwoong Hwang*, Bo Gyu Jang* and Heung-Sik Kim*
Under review in Advanced Functional Materials
5. Infrared Signatures of Plasmonic Polarons and Plasmon-Mediated Bandgap Renormalization in 1T-TiS2
Sangjun Han, Woojin Choi, JInwoong Hwang, and Soonjae Moon*
Under review in Nano Letters
4. Electron-doping-induced destabilization of the dimerized insulating state in monolayer 1T-IrTe2
Mingyung Lee†, Jae-Hyun Yun†, Kyoo Kim, Hyobeom Lee, Woojin Choi, Kyoungree Park, Seha Lee, Hayoon Im, Choongyu Hwang, Bo Gyu Jang*, Sung-Kwan Mo*, JInwoong Hwang*
Nanoscale 18, 13006-13012 (2026)
3. Plasmonic polaron in self-intercalated 1T-TiS2
Byoung Ki Choi*†, Woojin Choi†, Ji-Eun Lee, Sae Hee Ryu, Seungrok Mun, Hyobeom Lee, Kyoungree Park, Seha Lee, Hayoon Im, Yong Zhong, Hyejin Ryu, Sungkyun Park, Zhiyu Tao, Xuetao Zhu, Jiandong Guo, Jonathan D. Denlinger, Heung-Sik Kim, Aaron Bostwick, Zhi-Xun Shen, Choongyu Hwang*, Sung-Kwan Mo*, and Jinwoong Hwang*
Communications materials 7, 105 (2026)
2. Giant Hole-Doping in 2H-WSe2 via Ta Substitution
Minhee Kang†, Woojin Choi†, Choongyu Hwang, and Jinwoong Hwang*
Applied Science and Convergence Technology 34 (6), 194-197 (2025)
1. 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-Kwan Mo*, and Jinwoong Hwang*
Small 21 (39), e06671 (2025)
Presentations
23. The 2nd Semiconductor Physics Academic Festival in KNU, Chuncheon, South Korea, Jun. 23, 2026.
From Research to Publication: Woojin’s Research Diary
Oral presentation
22. 2026 SNU-ISSP Workshop, Seoul, South Korea, May. 30, 2026.
Plasmonic polaron in self-intercalated 1T-TiS2
Poster presentation
21. The 5th ARPES Workshop, Seoul, South Korea, Feb. 26-27, 2026.
Polaron in 1T-TiS2
Oral presentation
20. 2026 Workshop of PNU Physics, HU RIES, and HU Physics, Busan, South Korea, Jan. 20, 2026
Holstein polaron in an electron-doped 1T-TiS2
Poster presentation (Outstanding Poster Award)
19. Multiscale Magnetic Analysis Intensive Research Workshop, Chuncheon, South Korea, Jan. 6, 2026
Fermion and Boson in Solid
Oral presentation
18. The 14th International Conference on Advanced Materials and Devices, Busan, South Korea, Dec. 8, 2025
Holstein polaron in an electron-doped 1T-TiS2
Poster presentation
17. 2025 SNU-ISSP Workshop, Tokyo, Japan, Nov. 21, 2025
Holstein polaron in an electron-doped 1T-TiS2
Poster presentation
16. The Korean Physical Society Fall Meeting, Gwangju, South Korea, Oct. 23, 2025
Holstein polaron in an electron-doped 1T-TiS2
Poster presentation (Outstanding Poster Award)
15. The 1st Semiconductor Physics Academic Festival in KNU, Chuncheon, South Korea, Sep. 26, 2025
Holstein polaron in an electron-doped 1T-TiS2
Poster presentation (Outstanding Poster Award)
14. KNU Journal Club, Chuncheon, South Korea, Sep. 12, 2025
Unveiling hidden interaction in normal phase 1T-TiSe2
Oral presentation
13. The 16th Applied Physics Symposium, Busan, South Korea, Aug. 26, 2025
Plasmonic polaron in self-intercalated 1T-TiS2
Poster presentation (Outstanding Poster Award)
12. The 16th International Conference on Electronic Spectroscopy and Structure, Berkeley, USA, Jul. 22, 2025
Plasmonic polaron in self-intercalated 1T-TiS2
Poster presentation
11. Gangwon Branch of the Korean Physical Society, Chuncheon, South Korea, Jul. 3, 2025
Plasmonic polaron in self-intercalated 1T-TiS2
Oral presentation
10. The Korean Physical Society Spring Meeting, Daejeon, South Korea, Apr. 25, 2025
Plasmonic polaron in self-intercalated 1T-TiS2
Oral presentation (Outstanding Oral Award)
9. The 4th ARPES Workshop, Daejeon, South Korea, Apr. 22, 2025
Plasmonic polaron in self-intercalated 1T-TiS2
Poster presentation
8. The Graduate Research Presentation in Kangwon National University, Chuncheon, South Korea, Nov. 27, 2024
Plasmonic polaron in self-intercalated 1T-TiS2
Oral presentation (Outstanding Oral Award)
7. KNU-PNU seminar, Busan, South Korea, Nov. 1, 2024
Plasmonic polaron in self-intercalated 1T-TiS2
Oral presentation
6. The Korean Physical Society Fall Meeting, Yeosu, South Korea, Oct. 25, 2024
Plasmonic polaron in self-intercalated 1T-TiS2
Poster presentation (Outstanding Poster Award)
5. KNU Journal Club, Chuncheon, South Korea, Oct. 16, 2024
Plasmonic polaron in self-intercalated 1T-TiS2
Oral presentation
4. The Undergraduate Thesis Presentation in Kangwon National University, Chuncheon, South Korea, Jun. 7, 2024
1T-TiSe2: Semiconductor or Semimetal?
Oral presentation (Outstanding Oral Award)
3. Icheon Yangjeong Girl’s High School, Icheon, South Korea, May. 24, 2024
Career Paths in Physics
Oral presentation
2. The Korean Physical Society Fall Meeting, Changwon, South Korea, Oct. 25, 2023
Giant hole-doped 2H-WSe2 by Ta substitution
Poster presentation
1. The 65th KVS Summer Annual Conference & IFFM 2023, Jeju, South Korea, Aug. 23, 2023
Hole-doped 2H-WSe2 by Ta substitution
Poster presentation
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