Academic career

• Director, Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science (2013 ~ now)   

• Director, Center for Low Dimensional Electronic Symmetry, POSTECH (2012 ~ 2013) 

• Director, Center for Atomic Wires and Layers, Yonsei University and POSTECH (2003 ~ 2012) 

• Professor, Department of Physics, POSTECH (2010 ~ now) 

• Assistant, associate, and full Professor, Institute of Physics and Applied Physics, Yonsei University (2000 ~ 2010) 

• Lecturer, Department of Applied Chemistry, School of Engineering, the University of Tokyo (1999 ~ 2000) 

• Guest Researcher, Department of Physics and Measurement Technology, Linköping University, Sweden (1997) 

• Research Associate, Research Center for Spectrochemistry, Faculty of Science, the   University of Tokyo and beam line manager (BL-7A and BL-7B) of Photon Factory, KEK (1996 ~1999) 

Education

• Department of Physics, Faculty of Science, Tohoku University, Japan (1994~1996) ; Doctor of  Science in physics. (Thesis: Structures and electronic properties of adsorbates on the Si(001) surface studied by photoelectron-diffraction and –spectroscopy, advised by Prof. Shozo Kono) 

• Department of Physics, Pohang Institute of Science and Technology (POSTECH), Korea (1989~ 1991); M.S. in experimental solid state physics. (Thesis: Electronic structure study of metal surfaces using angle resolved photoemission spectroscopy) 

• Department of Physics, Seoul National University, Korea (1985 ~ 1989); B.S. in physics

Awards and honors

• Fellow, Korean Academy of Science and Technology (2020-)

• Vice Chair, Presidential Advisory Council of Science and Technology of Korea (2018-) 

• Fellow, Americal Physical Society (2017-) 

• Kyung-Am Award for Natural Science, Kyung-Am Foundation (2017) 

• The 30th Inchon Prize for Science and Technology, The Inchon Memorial Foundation and Dong-Ah Daily news paper (2016) 

• Korea Science Award, President of Korea (2015) 

• NanoKorea 2013 Minister of Science Award for Scientific Achievement, Ministry of Science, ICT and Future Planning (2013) 

• Leading Korean Research Scientist, Korean Academy of Science and Technology (2012) 

• Outstanding Referee, American Physical Society (2010) 

• Honored Invitation as Young Scientist of Asia, Japanese Society for Applied Physics (2007)

• Academic Achievement Award, Korean Physical Society (2007) 

• Scientist and Engineer of the Month, Ministry of Science and Technology of Korea (2006)

• Outstanding  Faculty of the Year, Yonsei University (2006) 

• Young Researcher of the Year, Japanese Society for Synchrotron Radiation Research (1999) 

• JSPS Foreign Student Fellowship, Japanese Society for Promotion of Science (1993-1996) 

Publication Summary

• 221  papers indexed in Science Citation Index (118 papers as the first or corresponding author)

• 37 papers on Phys. Rev. Lett. 

• 88 papers on Phys. Rev. B

• 6 papers on Nature Communications 

• Others on Science, Nature, Nature Physics, Nature Materials, Nature Nanotechnology, Nature Electronics, Nano Letters, ACS Nano, New J. Phys, Surf. Sci. 

• Total citations 8500+ (google scholar)

• Average citation per paper 24

• H-index 48  (google scholar)

• Full list of publications is  here

Major publications

• Exciton photoemission from a ground state of a solid: Ta2Pd3Te5, S. Lee, KH Jin, S. Kim, H. Jung, C. Won, S-W. Cheong, G. Y. Cho, J. Kim, and HW Yeom, Phys. Rev. Lett. 135, 116401 (2025). 

• Chiral Pseudogap Metal Emerging from a Disordered Van der Waals Mott Insulator 1T‐TaS2 − xSex, H Jung, J Jung, CJ Won, HR Park, SW Cheong, J Kim, GY Cho, HW Yeom, Advanced Materials, 2500287 (2025).

• Nanometer‐Scale 1D Negative Differential Resistance Channels in Van Der Waals Layers, Q Yao, JW Park, C Won, SW Cheong, HW Yeom, Advanced Science 12, 2408090 (2025).

• An approach to breaking the 100-milli-Kelvin barrier in electron temperature with a dilution-refrigerator ultrahigh vacuum scanning tunneling microscope, U Ham, H Kim, JS Yoon, W Yang, TH Kim, J Lee, HW Yeom, Review of Scientific Instruments 95, 11 (2025).

• Topological complex charge conservation in nontrivial Z2xZ2 domain walls, J. Lee, H. R. Park, K.-H. Jin, J. S. Kim, S.-W. Cheong, and H. W. Yeom, Advanced Materials, 2313803 (2024).

• Dual Higgs modes entangled into a soliton lattice in CuTe, S. Kown, H. Jung, S. Lee, G. Y. Cho, K. J. Kong, C. Won, S.-W. Cheong, H. W. Yeom, Nature Communications 15, 984 (2024).

• Topological soliton molecule in quasi 1D charge density wave, T. Im, S. K. Song, J. W. Park, H. W. Yeom, Nature Communications 14, 5085 (2023).

• Mobile kink solitons in a van der Waals charge density wave layer, J. Lee, J. W. Park, G. Y. Cho, and H. W. Yeom, Advanced Materials, 2300160 (2023).

• Creation and annihilation of mobile fractional solitons in atomic chains, J. W. Park, E. Do, J. S. Shin, S. K. Song, O. Stetsovych, P. Jelinek, and H. W. Yeom, Nature Nanotechnology 17, 244 (2022). 

• Detecting photoelectrons from spontaneously formed excitons, K. Fukutani, R. Staina, C. I. Kwon, J. S. Kim, K. J. Kong, J. Kim, and H. W. Yeom, Nature Physics 17, 1024 (2021).

• Distinguishing a Mott insulator from a trivial insulator with atomic adsorbates, J. Lee, K.-H. Jin, and H. W. Yeom, Phys. Rev. Lett. 126, 196405 (2021). 

• Honeycomb-lattice Mott insulator on tantalium disulphide, J. Lee, K.-H. Jin, A. Cantuneanu, A. Go, J. Jung, C. Won, S.-W. Cheong, J. Kim, F. Liu, H.-Y. Kee, and H. W. Yeom, Phys. Rev. Lett. 125, 096403 (2020). 

• Artificial relativistic molecules,J. W. Park, H. S. Kim, T. Brumme, T. Heine, and H. W. Yeom, Nature Communications 11, 815 (2020)

• Defect-selective chare-density-wave condensation in 2H-NbSe2, Phys. Rev. Lett. 125, 036804 (2020). 

• Electrical tuning of the excitonic insulator ground state of Ta2NiSe5, K. Fukutani, R. Staina, J. Jung, E. F. Schwier, K. Shimada, C. I. Kwon, J. S. Kim, and H. W. Yeom, Phys. Rev. Lett. 123, 206401 (2019)

• Emergent honeycomb network of topological excitations in correlated charge density wave,J. W. Park, G. Y. Cho, J. Lee, and H. W. Yeom, Nature Communications 10, 4038 (2019)

• Topological landscape of competing charge density waves in 2H-NbSe2, G. Gye, E. Oh, and H. W. Yeom, Phys. Rev. Lett. 122, 016403 (2019) 

• Restructure science in South Korea, Han Woong Yeom, Nature 558, 511 (2018) 

• Switching chiral solitons for algebraic operation of topological quaternary digits, Tae-Hwan Kim, Sangmo Cheon, and Han Woong Yeom, Nature Physics 13, 444 (2017)

• Correlated electronic states at domain walls of a Mott-charge-density-wave insulator 1T-TaS2, D. Cho, G. Gye, J. Lee, S.-H. Lee, L. Wang, S.-W. Cheong, and Han Woong Yeom, Nature Commun. 8, 392 (2017) 

• Nanoscale superconducting honeycomb charge order in IrTe2, H. S. Kim. S. Kim, K. Kim, B. I. Min, Y.-H. Cho, L. Wang, S.-W. Cheong, and H. W. Yeom, Nano Lett. 16, 4260 (2016)  

• Nanoscale manipulation of the Mott insulating state coupled to charge order in 1T-TaS2, D. Cho, S. Cheon, K.-S. Kim, S.-H. Lee, Y.-H. Cho, S.-W. Cheong, and H. W. Yeom, Nat. Commun. 7, 10453 (2016) 

• Electron quantization in broken atomic wires, Eui Hwan Do and Han Woong Yeom, Phys. Rev. Lett. 115, 266803 (2015) 

• Chiral solitons in a coupled double Peierls chain, Sangmo Cheon, Tae-Hwan Kim, Sung-Hoon Lee, and Han Woong Yeom, Science 350, 182 (2015).

• Self-Assembled Nanowires with Giant Rashba Split Bands, Jewook Park, Sung Won Jung, Min-Cherl Jung, Hiroyuki Yamane, Nobuhiro Kosugi, and Han Woong Yeom , Phys. Rev. Lett. 110, 036801 (2013)

• Topological Solitons versus Nonsolitonic Phase Defects in a Quasi-One-Dimensional Charge-Density Wave, Tae-Hwan Kim and Han Woong Yeom, Phys. Rev. Lett. 109, 246802 (2012)

• Radial band structure of electrons in liquid metals,” Keun Su Kim and Han Woong Yeom, Phys. Rev. Lett. 107, 136402 (2011)

• Nearly Massless Electrons in the Silicon Interface with a Metal Film, Keun Su Kim, Sung Chul Jung, Myung Ho Kang, and Han Woong Yeom, Phys. Rev. Lett. 104, 246803 (2010) 

• Giant kink in electron dispersion of strongly coupled lead nanowires, K. S. Kim and H. W. Yeom, Nano Lett. 9, 1916 (2009) 

• Hopping domain wall induced by paired adatoms on an atomic wire: Si(111)-(5x2)-Au, P. G. Knag, H. Jeong, and H. W. Yeom, Phys. Rev. Lett. 100, 146103 (2008)

• Band-structure engineering of gold atomic wires on silicon by controlled doping, W. H. Choi, P. G. Kang, K. D. Ryang, and H. W. Yeom, Phys. Rev. Lett. 100, 126801 (2008)

• Strong lateral electron coupling of Pb nanowires on stepped Si(111): Angle-resolved photoemission studies, K. S. Kim, H. Morikawa, W. H. Choi, and H. W. Yeom, Phys. Rev. Lett. 99, 196804 (2007)

• Robust one-dimensional metallic band structure of silicide nanowires, H. W. Yeom, Y. K. Kim, E. Y. Lee, K.-D. Ryang, and P. G. Kang, Phys. Rev. Lett. 95, 205504 (2005) 

• Coexistence of two different Peierls transition distortions within an atomic scale wire; Si(553)-Au, J. R. Ahn, P. G. Kang, K. D. Ryang, and H. W. Yeom, Phys. Rev. Lett. 95, 196405 (2005) 

• Mechanism of gap opening in a triple-band Peierls system:  In atomic wires on Si, J. R. Ahn, J. H. Byun, H. Koh, E. Rotenberg, S. D. Kevan, H. W. Yeom, Phys. Rev. Lett. 93, 106401 (2004) 

• In √7x√3 on Si(111): a nearly free electron metal in two dimensions, E. Rotenberg, H. Koh, K. Rossnagel, H. W. Yeom, J. Schafer, B. Krenzer, M. Rocha, and S. D. Kevan, Phys. Rev. Lett. 91, 246404 (2003) 

• Metal-insulator transition in Au atomic chains on Si with two proximal bands, J. R. Ahn, H. W. Yeom, H. S. Yoon, and I.-W. Lyo, Phys. Rev. Lett. 91, 196403 (2003) 

• Reinvestigation of Si 2p photoemission line shape of the clean Si(001)c(4x2) surface, H. Koh, J. W. Kim, W. H. Choi, and H. W. Yeom, Phys. Rev. B 67, 073306 (2002) 

• Chemical structure of the ultra-thin SiO2/Si(100) interface: angle-resolved Si 2p photoemission study, J. H. Oh, H. W. Yeom, Y. Hagimoto, K. Ono, M. Oshima, N. Hirashita, M. Nywa, A. Toriumi, and A. Kakizaki, Phys. Rev. B 63, 205310 (2001) 

• Reinterpretation of molecular O2 chemisorbate in the initial oxidation of the Si(111)7x7 surface, F. Matsui, H. W. Yeom, K. Amemiya, K. Tono., and T. Ohta, Phys. Rev. Lett. 85, 630 (2000) 

• Atomic and electronic-band structures of anomalous carbon dimers on 3C-SiC(001)c(2x2), H. W. Yeom, M. Shimomura, J. Kitamura, S. Hara, K. Tono, I. Matsuda,  B. S. Mun, W. A. R. Huff, T. Ohta, S. Kono, C. S. Fadley, H. Okushi, K. Kajimura, and S. Yoshida, Phys. Rev. Lett. 83, 1640 (1999) 

• Instability and charge density wave of metallic quantum chains on a silicon surface, H. W. Yeom, S.  Takeda, E. Rotenberg, I. Matsuda, C.M. Lee, J. Shaefer, K. Horikoshi, S.D. Kevan,  T. Ohta, T. Nagao, and S. Hasegawa, Phys. Rev. Lett. 82, 4898 (1999) 

• Adsorption of acetylene and ethylene on the Si(001)2x1 surface studied by NEXAFS and UPS, F. Matsui, H. W. Yeom , A. Imanish, K. Isawa, I. Matsuda and T. Ohta, Surf. Sci. Lett. 401, L413 (1998) 

• Electronic structure of the Si-rich 3C-SiC(001)3x2 surface, H. W. Yeom,  Y.-C. Chao, I. Matsuda, S. Hara, S. Yoshida, and R. I. G. Uhrberg, Phys. Rev. B 58, 10 540 (1998) 

• Surface core levels of the 3C-SiC(001)3x2 surface; Atomic origins and surface reconstruction, H. W. Yeom, Y. C. Chao, S. Terada, S. Hara, S. Yoshida and R.I.G. Uhrberg, Phys. Rev. B Rapid Communication 56, R15525 (1997) 

• Existence of a stable intermixing phase for monolayer Ge on Si(001), H. W. Yeom, M.  Nakamura, T. Abukawa, M. Sasaki, S. Suzuki, S. Sato, and S. Kono, Surf. Sci. Lett. 381, L533 (1997) 

• Surface electronic structure of Si(001)2x2-In studied by angle-resolved   photoelectron spectroscopy, H. W. Yeom, T. Abukawa, Y. Takakuwa, Y. Mori, T. Shimatani, A. Kakizaki, and S. Kono, Phys. Rev. B 53, 1948 (1996) 

• Direct determination of In dimer orientation of Si(001)2x3-In and 2x2-In surfaces, H. W. Yeom, T. Abukawa, M. Nakamura, X. Chen, S. Suzuki, S. Sato, and S. Kono, Surf. Sci. Lett. 340, L983 (1995) 

• Surface electronic structure of single-domain Si(001)2x2-Al : an angle-resolved photoelectron spectroscopy study using synchrotron radiation, H. W. Yeom, T. Abukawa, Y. Takakuwa, M. Nakamura, M. Kimura, A. Kakizaki, and S. Kono, Surf. Sci. Lett. 321, L177 (1994) 

Research group

Currently, I am collaborating with four postdoctoral researchers and advising nine PhD students, who are working with scanning tunneling microscopy or angle-resolved photoelectron spectrscopy.

Dr. Euihwan Do (STM)

Dr. Bo Li (STM)

Dr. Arnab Pal (Crystal Synthesis)

Dr. Sang Joon Park (ARPES)

PhD Candidate Minki Sung  (ARPES)

PhD Candidate Jiwon Jung  (ARPES)

PhD Candidate Heonjin Jeong  (ARPES)

PhD Candidate Dongjun Jeong  (ARPES)

PhD Candidate Seongjin Kwon  (STM)

PhD Candidate Haeryong Park  (STM)

PhD Candidate Taehwan Im  (STM)

PhD Candidate Hyunjung Kim  (STM)

PhD Candidate Siwon Lee  (ARPES)