Flat-band electronic bipolarity in a Janus and Kagome van der Waals semiconductor Nb3TeI7
Jo Hyun Yun,† Minki Sung,† Minhyuk Choi,† Kyoo Kim,†Wooin Yang, Dowook Kim, Min Joong Kim, Sung-Hyuk Her, Si Young Choi, Tae-Hwan Kim*, Jae Young Kim*, Han Woong Yeom*, and Jun Sung Kim*
Observation of a high-temperature excitonic insulating phase in a monolayer Ta2NiSe5
So Young Kim, Kwangrae Kim, Dowook Kim, Ji Eun Lee, Jieun Seok, Chang Il Kwon, Jo Hyun Yun, Chang-Jong Kang, Jae Hoon Kim, H. W. Yeom, Tae-Hwan Kim*, Jonghwan Kim*, B. J. Kim*, and Jun Sung Kim*
Accepted
Phase stabilization of strained 1T monolayer IrTe2 by electron-phonon coupling modulation
Sungmin Song, Tae-Hwan Kim, and Seung-Hoon Jhi* Physical Review BX, XXXX (2025).
2024
Endoscope-Assisted Manipulator for Precooling and Deposition in Low-Temperature STM Systems
Ungdon Ham*, Ji-Soo Yoon, Hyeonjung Kim, Jinho Lee, and Tae-Hwan Kim Journal of Vacuum Science & Technology B42, 062806 (2024).
[link]
Selected as an Editor’s Pick.
An Approach to Breaking the 100-milli-Kelvin Barrier in Electron Temperature with a Dilution-Refrigerator Ultrahigh Vacuum Scanning Tunneling Microscope
Ungdon Ham, Hyeonjung Kim, Ji-Soo Yoon, Wooin Yang, Tae-Hwan Kim, Jinho Lee, and Han Woong Yeom* Review of Scientific Instruments95, 113707 (2024).
[link]
Comment on “Tunneling-tip-induced collapse of the charge gap in the excitonic insulator Ta2NiSe5” Dowook Kim, S. Y. Kim, J. S. Kim, A. P. Baddorf, A.-P. Li, and T.-H. Kim* Physical Review Research6, 038001 (2024).
[link]
2023
Revealing inverted chirality of hidden domain wall states in multiband systems without topological transition Seung-Gyo Jeong,† S.-H. Han,†T.-H. Kim,* and S. Cheon* Communications Physics6, 262 (2023).
[arXiv, link]
Microscopic conductivity of passive films on ferritic stainless steel for hydrogen fuel cells Taemin Ahn and T.-H. Kim* Journal of the Korean Physical Society83, 289–295 (2023).
[arXiv, link]
Atomic-Scale Tailoring of Chemisorbed Atomic Oxygen on Epitaxial Graphene for Graphene-Based Electronic Devices
T. S. Kim,†Taemin Ahn,†T.-H. Kim*, H. C. Choi, and H. W. Yeom Applied Physics Letters123, 023502 (2023).
[arXiv, link]
Systematic investigation of wear-induced cold welding in ultrahigh vacuum piezoelectric motors with non-metallic coatings Taemin Ahn, S. Song, U. Ham, and T.-H. Kim* Review of Scientific Instruments94, 063702 (2023).
[arXiv, link]
Dimensional crossover of charge order in IrTe2 with strong interlayer coupling Hyoung Kug Kim, S. Y. Kim, C. J. Won, S.-W. Cheong, J. Kim, J. S. Kim, and T.-H. Kim* Physical Review B107, 045112 (2023).
[arXiv, link]
Scanning tunneling microscopy study of hidden phases in atomically thin 1T-TaS2 Wooin Yang, Dowook Kim, Hyoung Kug Kim, and T.-H. Kim* Journal of the Korean Physical Society82, 298–304 (2023).
[arXiv, link]
Thickness dependent charge density wave networks on thin 1T-TaS2 Wooin Yang, Dowook Kim, Hyoung Kug Kim, and T.-H. Kim* Journal of the Korean Physical Society82, 293–297 (2023).
[arXiv, link]
In-situ scanning tunneling microscopy observation of thickness-dependent air-sensitive layered materials and heterodevices Hyoung Kug Kim, Dowook Kim, Dong Guk Lee, E.-S. Ahn, H.-W. Jeong, G.-H. Lee, J. S. Kim, and T.-H. Kim* Journal of the Korean Physical Society82, 204–208 (2023).
[arXiv, link]
2022
Topological and trivial domain wall states in engineered atomic chains Seung-Gyo Jeong and T.-H. Kim* npj Quantum Materials7, 22 (2022).
[arXiv, link]
Circular Dichroism of Emergent Chiral Stacking Orders in Quasi-One-Dimensional Charge Density Waves
S.-W. Kim, H.-J. Kim,* S. Cheon,* and T.-H. Kim* Physical Review Letters128, 046401 (2022).
[arXiv, link]
2021
Superconductivity emerging from a stripe charge order in IrTe2 nanoflakes
S. Park,† S. Y. Kim,†Hyoung Kug Kim, M. J. Kim, T. Kim, H. Kim, G. S. Choi, C. J. Won, S. Kim, K. Kim, E. F. Talantsev, K. Watanabe, T. Taniguchi, S.-W. Cheong, B. J. Kim, H. W. Yeom, J. Kim,* T.-H. Kim,* J. S. Kim* Nature Communications12, 3157 (2021).
[arXiv, link]
Influence of the Tip Shape on Scanning Tunneling Luminescence Spectra: Implications for Nanomaterial Characterization Songbin Cui, T.-H. Kim,* and U. Ham* ACS Applied Nano Materials4, 29–32 (2021).
[link]
Particle-antiparticle duality and fractionalization of topological chiral solitons
C.-g. Oh,† S.-H. Han,†Seung-Gyo Jeong,†T.-H. Kim,* and S. Cheon* Scientific Reports11, 1013 (2021).
[link]
2020
Topological features of ground states and topological solitons in generalized Su-Schrieffer-Heeger models using generalized time-reversal, particle-hole, and chiral symmetries
S.-H. Han,†Seung-Gyo Jeong,† S.-W. Kim, T.-H. Kim,* and S. Cheon* Physical Review B102, 235411 (2020).
[arXiv, link]
Specific stacking angles of bilayer graphene grown on atomic-flat and -stepped Cu surfaces
H. Cho, Y. Park, S. Kim, Taemin Ahn, T.-H. Kim, and H. C. Choi* npj 2D Materials and Applications4, 35 (2020).
[link]
Two-dimensional chiral stacking orders in quasi-one-dimensional charge density waves
S.-W. Kim, H.-J. Kim,* S. Cheon,* and T.-H. Kim* Physical Review B102, 121408(R) (2020).
[arXiv, link]
Unusual Diffusion Behavior of Copper-Hexadecafluoro-Phthalocyanine Molecules on Au(111) Songbin Cui, T.-H. Kim,* and U. Ham Journal of the Korean Physical Society77, 258–263 (2020).
[link]
Tunable Plasmonic Quantum Light Source with Silver Nanoclusters on a Silver Surface Songbin Cui, T.-H. Kim,* and U. Ham* Journal of the Korean Physical Society77, 133–137 (2020).
[link]
2019
Atomic structures of self-assembled epitaxially grown GdSi2 nanowires on Si(001) by STM
S. K. Song,* T.-H. Kim, and H. W. Yeom* Scientific Reports9, 1364 (2019).
[link]
2017
Coplanar semiconductor–metal circuitry defined on few-layer MoTe2 via polymorphic heteroepitaxy
J. H. Sung,† H. Heo,† S. Si,† Y. H. Kim, Hyeong Rae Noh, K. Song, J. Kim, C.-S. Lee, S.-Y. Seo, D.-H. Kim, Hyoung Kug Kim, H. W. Yeom, T.-H. Kim, S.-Y. Choi, J. S. Kim, and M.-H. Jo* Nature Nanotechnology12, 1064 (2017).
[link1, link2]
Switching chiral solitons for algebraic operation of topological quaternary digits T.-H. Kim,* S. Cheon and H. W. Yeom* Nature Physics13, 444–447 (2017).
[arXiv, link]
2016
Layer-Confined Excitonic Insulating Phase in Ultrathin Ta2NiSe5 Crystals
S. Y. Kim, Y. Kim, C.-J. Kang, E.-S. An, Hyoung Kug Kim, M. J. Eom, M. Lee, C. Park, T.-H. Kim, H. C. Choi, B. I. Min, and J. S. Kim* ACS Nano10, 8888–8894 (2016).
[link]
2015
Chiral solitons in a coupled double Peierls chain
S. Cheon, T.-H. Kim, S.-H. Lee,* and H. W. Yeom* Science350, 182 (2015).
[link]
Visualization of the inverse layer-plus-island growth in Fe islands on W(110) substrate
J. Seo, T.-H. Kim,* and Y. Kuk* Current Applied Physics15, 1042 (2015).
[link]
Charge-ordering cascade with spin-orbit Mott dimer states in metallic iridium ditelluride
K.-T. Ko, H.-H. Lee, D.-H. Kim, J.-J. Yang, S.-W. Cheong, M.J. Eom, J.S. Kim, R. Gammag, K.-S. Kim, H.-S. Kim, T.-H. Kim, H.-W. Yeom, T.-Y. Koo, H.-D. Kim, and J.-H. Park* Nat. Commun.6, 7342 (2015).
[link]
2014
Transforming a surface state of a topological insulator by a Bi capping layer
H. W. Yeom,* S. H. Kim, W. J. Shin, K.-H. Jin, J. Park, T.-H. Kim, J. S. Kim, H. Ishikawa, K. Sakamoto, and S.-H. Jhi Phys. Rev. B90, 235401 (2014).
[arXiv, link]
Structural versus electronic distortions in IrTe2 with broken symmetry
H. S. Kim, T.-H. Kim, J. Yang, S.-W. Cheong, and H. W. Yeom* Phys. Rev. B90, 201103 (2014).
[arXiv, link]
Absence of Luttinger liquid behavior in Au-Ge wires: A high-resolution scanning tunneling microscopy and spectroscopy study
J. Park, K. Nakatsuji, T.-H. Kim, S. K. Song, F. Komori, and H. W. Yeom* Phys. Rev. B90, 165410 (2014).
[arXiv, link]
Edge and interfacial states in a two-dimensional topological insulator: Bi(111) bilayer on Bi2Te2Se
S. H. Kim, K.-H. Jin, J. Park, J. S. Kim, S.-H. Jhi,* T.-H. Kim, and H. W. Yeom* Phys. Rev. B89, 155436 (2014).
[arXiv, link]
2013
Polaronic Transport and Current Blockades in Epitaxial Silicide Nanowires and Nanowire Arrays
V. Iancu, X.-G. Zhang, T.-H. Kim, L. D. Menard, P. R. C. Kent, M. E. Woodson, J. M. Ramsey, A.-P. Li, and H. H. Weitering* Nano Lett.13, 3684–3689 (2013).
[link]
Valley spin polarization by using the extraordinary Rashba effect on silicon
K. Sakamoto,* T.-H. Kim, T. Kuzumaki, B. Müller, Y. Yamamoto, M. Ohtaka, J. R. Osiecki, K. Miyamoto, Y. Takeichi, A. Harasawa, S. D. Stolwijk, A. B. Schmidt, J. Fujii, R. I. G. Uhrberg, M. Donath, H. W. Yeom, and T. Oda Nat. Commun.4, 2073 (2013).
[link]
Visualizing Atomic-Scale Negative Differential Resistance in Bilayer Graphene
K. S. Kim, T.-H. Kim, A. L. Walter, T. Seyller, H. W. Yeom,* E. Rotenberg, and A. Bostwick* Phys. Rev. Lett.110, 036804 (2013).
[arXiv, link]
2012
Topological Solitons versus Nonsolitonic Phase Defects in a Quasi-One-Dimensional Charge-Density Wave T.-H. Kim* and H. W. Yeom* Phys. Rev. Lett.109, 246802 (2012).
[arXiv, link]
Nanomanipulation and nanofabrication with multi-probe scanning tunneling microscope: From individual atoms to nanowires
S. Qin, T.-H. Kim, Z. Wang and A.-P. Li* Rev. Sci. Instrum.83, 063704 (2012).
[link]
Correlating Electronic Transport to Atomic Structures in Self-Assembled Quantum Wires
S. Qin, T.-H. Kim, Y. Zhang, W. Ouyang, H. H. Weitering, C.-K. Shih, A. P. Baddorf, R. Wu, and A.-P. Li* Nano Lett.12, 938–942 (2012).
[link]
2011
Structural Dependence of Grain Boundary Resistivity in Copper Nanowires T.-H. Kim, D. M. Nicholson, X.-G. Zhang, B. M. Evans, N. S. Kulkarni, E. A. Kenik, H. M. Meyer, B. Radhakrishnan, and A.-P. Li* Jpn. J. Appl. Phys.50, 08LB09 (2011).
[link]
Comment on ‘Atomic Structure, Energetics, and Dynamics of Topological Solitons in Indium Chains on Si(111) Surfaces’
H. W. Yeom* and T.-H. Kim Phys. Rev. Lett.107, 019701 (2011).
[link]
Ferroelectric Gated Electrical Transport in CdS Nanotetrapods
W. Fu, S. Qin, L. Liu, T.-H. Kim, S. Hellstrom, W. Wang,* W. Liang, X. Bai, A.-P. Li,* and E. Wang* Nano Lett.11, 1913–1918 (2011).
[link]
Strain relaxation induced spin reorientation in Fe films on W(110)
J. Seo, Y. Oh, T.-H. Kim & Y. Kuk* Appl. Phys. Lett.99, 182501 (2011).
[link]
2006–2010 at Oak Ridge National Laboratory
Imaging and Manipulation of the Competing Electronic Phases Near the Mott Metal-Insulator Transition T.-H. Kim, M. Angst, B. Hu, R. Jin, X.-G. Zhang, J. F. Wendelken, E. W. Plummer,* and A.-P. Li* Proc. Natl. Acad. Sci. U.S.A.107, 5272–5275 (2010).
[link]
Tuning magnetostatic interaction in single-crystalline nanodot arrays with in-plane easy axes
J. Seo, T.-H. Kim, S.-H. Chung, Y. Oh, J. H. Choi, and Y. Kuk* Appl. Phys. Lett.96, 073106 (2010).
[link]
Large Discrete Resistance Jump at Grain Boundary in Copper Nanowire T.-H. Kim, X.-G. Zhang, D. M. Nicholson, B. M. Evans, N. S. Kulkarni, B. Radhakrishnan, E. A. Kenik, and A.-P. Li* Nano Lett.10, 3096–3100 (2010).
[link]
Enhanced conductance blockade due to Pauli exclusion in tunnel junctions with half-metallic electrodes T.-H. Kim, X.-G. Zhang, J. F. Feng, X. F. Han, and A. P. Li* Phys. Lett. A373, 2782–2785 (2009).
[link]
Probing microscopic variations of superconductivity on the surface of Ba(Fe1−xCox)2As2 single crystals T.-H. Kim, R. Jin, L. R. Walker, J. Y. Howe, M. H. Pan, J. F. Wendelken, J. R. Thompson, A. S. Sefat, M. A. McGuire, B. C. Sales, D. Mandrus, and A. P. Li* Phys. Rev. B80, 214518 (2009).
[arXiv, link]
Probing electrical transport in individual carbon nanotubes and junctions T.-H. Kim, J. F. Wendelken, A.-P. Li*, G. Du, and W. Li* Nanotechnol.19, 485201 (2008).
[link]
Space-charge trap mediated conductance blockade in tunnel junctions with half-metallic electrodes
J. F. Feng, T.-H. Kim, X. F. Han, X.-G. Zhang, Y. Wang, J. Zou, D. B. Yu, H. Yan, and A. P. Li* Appl. Phys. Lett.93, 192507 (2008).
[link]
Charge-order fluctuations in one-dimensional silicides
C. Zeng, P. R. C. Kent, T.-H. Kim, A.-P. Li, and H. H. Weitering* Nat. Mater.7, 539–542 (2008).
[link]
A cryogenic Quadraprobe scanning tunneling microscope system with fabrication capability for nanotransport research T.-H. Kim, Z. Wang, J. F. Wendelken, H. H. Weitering, W. Li, and A.-P. Li* Rev. Sci. Instrum.78, 123701 (2007).
[link]
1999–2006 at Seoul National University
Strain-relieving ridge structure in a wetting layer on the W(110) surface T.-H. Kim, J. Seo, J. Choi, B.-Y. Choi, Y. J. Song, Y. Kuk, and S.-J. Kahng* Surf. Sci.595, 30–34 (2005).
[link]
Atomic-level strain-relieving mechanism and local electronic structure of a wetting film T.-H. Kim, J. Seo, B.-Y. Choi, Y. J. Song, J. Choi, Y. Kuk, and S.-J. Kahng* Appl. Phys. Lett.87, 123112 (2005).
[link]
In situ fabrication of single-crystal Fe nanomagnet arrays
J. H. Choi, T.-H. Kim, J. Seo, Y. Kuk,* and M. S. Suh Appl. Phys. Lett.85, 3235–3237 (2004).
[link]
Anisotropic growth of Cr Ad-layer: a one-dimensional nanostructure
E.-P. Kim, T.-H. Kim, S.-T. Kim, Y. Kuk, and S.-J. Kahng* Thin Sold Films441, 317–320 (2003).
[link]
Transition between two competing structures in the epitaxial Ag layer on W(110) T.-H. Kim, B.-Y. Choi, Y. J. Song, W. G. Park, S.-J. Kahng, and Y. Kuk* Phys. Rev. B67, 233401 (2003).
[link]