Electronic Structure Group
Publications
2024
Tunable Colossal Anomalous Hall Conductivity in Half-Metallic Material Induced by d-Wave-Like Spin-Orbit Gap
Joonyoung Choi, Jin-Hong Park, Wonshik Kyung, Younsik Kim, Mi Kyung Kim, Junyoung Kwon, Changyoung Kim, Jun-Won Rhim✉, Se Young Park✉, Younjung Jo✉
Strain tunable electronic ground states in two-dimensional iridate thin films
Donghan Kim, Byungmin Sohn✉, Yeonjae Lee, Jeongkeun Song, Mi Kyung Kim, Minjae Kim✉, Tae Won Noh, Changyoung Kim
Applied Surface Science 657, 159801 (2024)
Visualizing the Low-Energy Electronic Structure of Prototypical Hybrid Halide Perovskite through Clear Band Measurements
Jeehong Park, Soonsang Huh, Young Woo Choi, Donghee Kang, Minsoo Kim, Donghan Kim, Soohyung Park, Hyoung Joon Choi✉, Changyoung Kim✉, and Yeonjin Yi✉
Signatures of a surface spin–orbital chiral metal
Federico Mazzola✉, Wojciech Brzezicki, Maria Teresa Mercaldo, Anita Guarino, Chiara Bigi, Jill A. Miwa, Domenico De Fazio, Alberto Crepaldi, Jun Fujii, Giorgio Rossi, Pasquale Orgiani, Sandeep Kumar Chaluvadi, Shyni Punathum Chalil, Giancarlo Panaccione, Anupam Jana, Vincent Polewczyk, Ivana Vobornik, Changyoung Kim, Fabio Miletto-Granozio, Rosalba Fittipaldi, Carmine Ortix, Mario Cuoco✉ & Antonio Vecchione✉
Broken Kramers Degeneracy in Altermagnetic MnTe
Suyoung Lee, Sangjae Lee, Saegyeol Jung, Jiwon Jung, Donghan Kim, Yeonjae Lee, Byeongjun Seok, Jaeyoung Kim, Byeong Gyu Park, Libor Šmejkal, Chang-Jong Kang✉, and Changyoung Kim✉
Physical Review Letters 132, 036702 (2024)
Flexoelectric polarizing and control of a ferromagnetic metal
Wei Peng✉, Se Young Park✉, Chang Jae Roh, Junsik Mun, Hwiin Ju, Jinkwon Kim, Eun Kyo Ko, Zhengguo Liang, Sungsoo Hahn, Jinfeng Zhang, Ana M. Sanchez, David Walker, Steven Hindmarsh, Liang Si, Yong Jin Jo, Yongjoo Jo, Tae Heon Kim, Changyoung Kim, Lingfei Wang, Miyoung Kim, Jong Seok Lee, Tae Won Noh✉ & Daesu Lee✉
Nature Physics 20, 450–455 (2024)
Ferromagnetic insulating substrate for magnetic proximity studies: LaCoO3 thin film
Yeonjae Lee, Youngdo Kim, Sangjae Lee✉, Changyoung Kim
2023
Melting of unidirectional charge density waves across twin domain boundaries in GdTe3
Sanghun Lee*, Eunseo Kim*, Junho Bang, Jongho Park, Changyoung Kim, Dirk Wulferding✉, and Doohee Cho✉
Linear scaling relationship of Néel temperature and dominant magnons in pyrochlore ruthenates
Jae Hyuck Lee*, Dirk Wulferding*, Junkyoung Kim, Dongjoon Song✉, Seung Ryong Park✉, and Changyoung Kim
Physical Review B 108, 054443 (2023)
Collective magnetic Higgs excitation in a pyrochlore ruthenate
Dirk Wulferding, Junkyoung Kim, Mi Kyung Kim, Yang Yang, Jae Hyuck Lee, Dongjoon Song, Dongjin Oh, Heung-Sik Kim, Li Ern Chern, Yong Baek Kim, Minji Noh, Hyunyong Choi, Sungkyun Choi, Natalia B. Perkins, Changyoung Kim✉ and Seung Ryong Park✉
npj Quantum Materials 8, 40 (2023)
Growth and Electronic Structure of Copper Oxide Monolayer Epitaxial Films
Youngdo Kim, Byeongjun Gil, Jinkwon Kim, Yeonjae Lee, Donghan Kim, Sungsoo Hahn, Tae Won Noh, Miyoung Kim, and Changyoung Kim✉
Kondo interaction in FeTe and its potential role in the magnetic order
Younsik Kim, Min-Seok Kim, Dongwook Kim, Minjae Kim, Minsoo Kim, Cheng-Maw Cheng, Joonyoung Choi, Saegyeol Jung, Donghui Lu, Jong Hyuk Kim, Soohyun Cho, Dongjoon Song, Dongjin Oh, Li Yu, Young Jai Choi, Hyeong-Do Kim, Jung Hoon Han, Younjung Jo, Ji Hoon Shim, Jungpil Seo, Soonsang Huh✉ & Changyoung Kim✉
Nature Communications 14, 4145 (2023)
Observation of the orbital Hall effect in a light metal Ti
Young-Gwan Choi*, Daegeun Jo*, Kyung-Hun Ko*, Dongwook Go, Kyung-Han Kim, Hee Gyum Park, Changyoung Kim, Byoung-Chul Min, Gyung-Min Choi✉, and Hyun-Woo Lee✉
Tuning orbital-selective phase transitions in a two-dimensional Hund's correlated system
Eun Kyo Ko*, Sungsoo Hahn*, Changhee Sohn, Sangmin Lee, Seung-Sup B. Lee, Byungmin Sohn, Jeong Rae Kim, Jaeseok Son, Jeongkeun Song, Youngdo Kim, Donghan Kim, Miyoung Kim, Choong H. Kim†, Changyoung Kim✉ & Tae Won Noh✉
Nature Communications 14, 3572 (2023)
Spin fluctuations in Sr1.8La0.2RuO4
Zheng He, Qisi Wang✉, Yu Feng, Chul Kim, Wonshik Kyung, Changyoung Kim, Yoshiyuki Yoshida, Hongliang Wo, Gaofeng Ding, Yiqing Hao, Feiyang Liu, Helen C. Walker, Devashibhai T. Adroja, Astrid Schneidewind, Wenbin Wang, and Jun Zhao✉
Physical Review B 107, L201107 (2023)
Electric control of two-dimensional Van Hove singularity in oxide ultra-thin films
Donghan Kim*, Younsik Kim*, Byungmin Sohn✉, Minsoo Kim, Bongju Kim, Tae Won Noh, and Changyoung Kim✉
Advanced Materials 35, 2207188 (2023)
Heteroepitaxial Control of Fermi Liquid, Hund Metal, and Mott Insulator Phases in Single-Atomic-Layer Ruthenates
Jeong Rae Kim*, Byungmin Sohn*, Hyeong Jun Lee*, Sangmin Lee, Eun Kyo Ko, Sungsoo Hahn, Sangjae Lee, Younsik Kim, Donghan Kim, Hong Joon Kim, Youngdo Kim, Jaeseok Son, Charles H. Ahn, Frederick J. Walker, Ara Go, Miyoung Kim, Choong H. Kim✉, Changyoung Kim✉, Tae Won Noh✉
2022
Universality of charge doping driven metal-insulator transition in Sr2RhO4 and role of spin-orbit couplings
Junyoung Kwon, Shoresh Soltani, Craig Polley, Jongkeun Jung, Minsoo Kim, Donghan Kim, Jonathan Denlinger, Dongjoon Song, Yoshiyuki Yoshida, Wonshik Kyung✉, and Changyoung Kim✉
Physical Review B 106, L241114 (2022)
Defect engineering in A2BO4 thin films via surface-reconstructed LaSrAlO4 substrates
Jinkwon Kim, Youngdo Kim, Junsik Mun, Woo Jin Choi, Yunyeong Chang, Jeong Rae Kim, Byeongjun Gil, Jong Hwa Lee, Sungsoo Hahn, Hongjoon Kim, Seo Hyoung Chang,Gun Do Lee, Miyoung Kim, Changyoung Kim, and Tae Won Noh✉
Small Methods 6, 2200880 (2022)
Evolution of electronic band reconstruction in thickness-controlled perovskite SrRuO3 thin films
Byungmin Sohn, Changyoung Kim✉
Journal of the Korean Physical Society 81, 1250 (2022)
Quantum electron liquid and its possible phase transition
Sunghun Kim*, Joonho Bang*, Chan-young Lim*, Seung Yong Lee, Jounghoon Hyun, Gyubin Lee, Yeonghoon Lee, Jonathan D. Denlinger, Soonsang Huh, Changyoung Kim, Sang Yong Song, Jungpil Seo, Dinesh Thapa, Seong-Gon Kim, Young Hee Lee, Yeongkwan Kim✉, Sung Wng Kim✉
Nature Materials 21, 1269 (2022)
Tunable spin injection and detection across a van der Waals interface: Electronic control and polarization reversal
Keun-Hong Min*, Dukhyun Lee*, Sang-Jun Choi, In-Ho Lee, Junho Seo, Dong Wook Kim, Kyung-Tae Ko, Kenji Watanabe, Takashi Taniguchi, Dong-Han Ha, Changyoung Kim, Ji Hoon Shim, Jonghwa Eom✉, Jun-Sung Kim✉ and Suyong Jung✉
Nature Materials 21, 1144 (2022)
Cu doping effects on the electronic structure of Fe1-xCuxSe
S. Huh*, Z. Lu*, Y. S. Kim, D. Kim, S. B. Liu, M. W. Ma, L. Yu✉, F. Zhou, X. L. Dong, C. Kim✉, and Z. X. Zhao
Physical Review B 105, 245140 (2022)
Metallic interface induced ionic redistribution within amorphous MoO3 films
F. Paparoni, E. Mijiti, S. Kazim, M. Minicucci, N. Pinto, A. D'Elia, C. Kim, S. Huh, R. Gunnella, A. Marcelli, A. Di Cicco, and S.J. Rezvani✉
Advanced Materials Interfaces 9, 2200453 (2022)
Observation of Kondo hybridisation with an orbital-selective Mott phase in 4d Ca2-xSrxRuO4
Minsoo Kim, Junyoung Kwon, Choong H. Kim, Younsik Kim, Daun Chung, Hanyoung Ryu, Jongkeun Jung, Beom Seo Kim, Dongjoon Song, Jonathan D. Denlinger, Moonsup Han, Yoshiyuki Yoshida, Takashi Mizokawa, Wonshik Kyung✉, Changyoung Kim✉
npj Quantum Materials 7, 59 (2022)
Strong antiferromagnetic proximity coupling in the heterostructure superconductor Sr2VO3−δFeAs
Jong Mok Ok*, Chang Il Kwon*, O. E. Ayala Valenzuela, Sunghun Kim, Ross D. McDonald, Jeehoon Kim, E. S. Choi, Woun Kang, Y. J. Jo, C. Kim, E. G. Moon, Y. K. Kim, and Jun Sung Kim✉
Physical Review B 105, 214505 (2022)
Strain-controlled evolution of electronic structure indicating topological phase transition in the quasi-one-dimensional superconductor TaSe3
Jounghoon Hyun, Min Yong Jeong, Myung-Chul Jung, Yeonghoon Lee, Younsik Kim, Saegyeol Jung, Byeongjun Seok, Junseong Song, Chan-young Lim, Jaehun Cha, Gyubin Lee, Yeojin An, Makoto Hashimoto, Donghui Lu, Jonathan D. Denlinger, Sung Wng Kim, Changyoung Kim, Myung Joon Han✉, Sunghun Kim✉, and Yeongkwan Kim✉
Physical Review B 105, 115143 (2022)
Challenges in identifying chiral spin textures via the topological Hall effect
Graham Kimbell*, Changyoung Kim, Weida Wu, Mario Cuoco, and Jason W. A. Robinson✉
Communications Materials 3, 19 (2022)
Understanding the Role of Electronic Effect in CO on Pt-Sn Alloy Surface via Band Structure Measurements
Jongkeun Jung, Sungwoo Kang, Laurent Nicolai, Jisook Hong, Ján Minár, Inkyung Song, Wonshik Kyung, Soohyun Cho, Beom Seo Kim, Jonathan Denlinger, Francisco José Cadete Santos Aires, Eric Ehret, Phillip Ross, Ji Hoon Shim, Slavomir Nemsak, Do Young Noh, Seungwu Han✉, Changyoung Kim✉, Bongjin Mun✉
Electronic structures of CO adsorbed Pt-skin surface on Pt-Co and Pt-Ni alloys
Jongkeun Jung, Jisook Hong, Donghan Kim, Minsoo Kim, Jihoon Shim, Changyoung Kim✉
2021
B1g phonon anomaly driven by Fermi surface instability at intermediate temperature in YBa2Cu3O7-δ
Dongjin Oh, Dongjoon Song, Younsik Kim, Shigeki Miyasaka, Setsuko Tajima, Jin Mo Bok, Yunkyu Bang, Seung Ryong Park✉, Changyoung Kim✉
Physical Review Letters 127, 277001 (2021)
Observation of spin-dependent dual ferromagnetism in perovskite ruthenates
Sungsoo Hahn*, Byungmin Sohn*, Minjae Kim✉, Jeong Rae Kim, Soonsang Huh, Younsik Kim, Wonshik Kyung, Minsoo Kim, Donghan Kim, Youngdo Kim, Tae Won Noh, Ji Hoon Shim, and Changyoung Kim✉
Physical Review Letters 127, 256401 (2021)
Band-selective gap opening by a C4-symmetric order in a proximity-coupled heterostructure Sr2VO3FeAs
Sunghun Kim*, Jong Mok Ok*, Hanbit Oh, Chang-il Kwon, Yi Zhang, Jonathan D. Denlinger, Sung-Kwan Mo, Frederik Wolff-Fabris, Erik Kampert, Eun-Gook Moon✉, Changyoung Kim✉, Jun Sung Kim✉, and Yeongkwan Kim✉
Observation of metallic electronic structure in a single-atomic-layer oxide
Byungmin Sohn*, Jeong Rae Kim*, Choong H. Kim, Sangmin Lee, Sungsoo Hahn, Younsik Kim, Soonsang Huh, Donghan Kim, Youngdo Kim, Wonshik Kyung, Minsoo Kim, Miyoung Kim, Tae Won Noh✉, and Changyoung Kim✉
Nature Communications 12, 6171 (2021)
Unveiling unconventional magnetism at the surface of Sr2RuO4
R. Fittipaldi*, R. Hartmann*, M. T. Mercaldo, S. Komori, A. Bjørlig, W. Kyung, Y. Yasui, T. Miyoshi, L. A. B. Olde-Olthof, C. M. Palomares-Garcia, V. Granata, I. Keren, W. Higemoto, A. Suter, T. Prokscha, A. Romano, C. Noce, C. Kim, Y. Maeno, E. Scheer, B. Kalisky, J. W. A. Robinson, M. Cuoco✉, Z. Salman✉, A. Vecchione, A. Di Bernardo✉
Nature Communications 12, 5792 (2021)
Sign-tunable anomalous Hall effect induced by two-dimensional symmetry-protected nodal structures in ferromagnetic perovskite oxide thin films
Byungmin Sohn*, Eunwoo Lee*, Se Young Park, Wonshik Kyung, Jinwoong Hwang, Jonathan D. Denlinger, Minsoo Kim, Donghan Kim, Bongju Kim, Hanyoung Ryu, Soonsang Huh, Ji Seop Oh, Jong Keun Jung, Dongjin Oh, Younsik Kim, Moonsup Han, Tae Won Noh, Bohm-Jung Yang✉, and Changyoung Kim✉
Nature Materials 20, 1643 (2021)
Observation of Dresselhaus type spin splitting of zinc-blende structure semiconductors by circular dichroic photoemission study
Soohyun Cho, Wonsig Jung, Jisook Hong, Beomyoung Kim, Garam Han, M. Leandersson, T. Balasubramanian, Masashi Arita, Kenya Shimada, Ji Hoon Shim, Changyoung Kim, Seung Ryong Park✉
Current Applied Physics 30, 96 (2021)
Stable humplike Hall effect and coplanar spin textures in SrRuO3 ultrathin films
Byungmin Sohn, Bongju Kim✉, Se Young Park, Hwan Young Choi, Jae Young Moon, Taeyang Choi, Young Jai Choi, Hua Zhou, Jun Woo Choi, Alessandro Bombardi, Dan. G. Porter, Seo Hyoung Chang✉, Jung Hoon Han, and Changyoung Kim✉
Physical Review Research 3, 023232 (2021)
Antiperovskite Gd3SnC: Unusual coexistence of ferromagnetism and heavy fermions in Gd lattice
Joonho Bang*, Jongho Park*, Kimoon Lee, Minsoo Kim, Wonshik Kyung, Jonathan Denlinger, Yeong Kwan Kim, Young Hee Lee, Changyoung Kim✉, Sung Wng Kim✉
Advanced Materials 33, 2102958 (2021)
Deep learning-based statistical noise reduction for multidimensional spectral data
Younsik Kim, Dongjin Oh, Soonsang Huh, Dongjoon Song, Sunbeom Jeong, Junyoung Kwon, Minsoo Kim, Donghan Kim, Hanyoung Ryu, Jongkeun Jung, Wonshik Kyung, Byunmgin Sohn, Suyoung Lee, Jounghoon Hyun, Yeonghoon Lee, Yeong-Kwan Kim, Changyoung Kim✉
Review of Scientific Instruments 92, 073901 (2021)
Chemical control of the Rashba spin splitting size of α-GeTe(111) surface states by adjusting the potential at the topmost atomic layer
Hanyoung Ryu*, Jae-Mo Lihm*, Joonil Cha, Beomyoung Kim, Beom Seo Kim, Wonshik Kyung, Inkyung Song, Yeongkwan Kim, Garam Han, Jonathan Denlinger, In Chung, Cheol-Hwan Park✉, Seung Ryong Park✉, and Changyoung Kim✉
Physical Review B 103, 245113 (2021)
Correlated magnetic weyl semimetal state in strained Pr2Ir2O7
Yangyang Li✉, Taekoo Oh, Jaeseok Son, Jeongkeun Song, Mi Kyung Kim, Dongjun Song, Sukhyun Kim, Seo Hyoung Chang, Changyoung Kim, Bohm-Jung Yang, And Tae Won Noh✉
Advanced Materials 33, 2008528 (2021)
Capping and gate control of anomalous Hall effect and hump structure in ultra-thin SrRuO3 films
Donghan Kim*, Byungmin Sohn*, Minsoo Kim, Sungsoo Hahn, Youngdo Kim, Jong Hyuk Kim, Young Jai Choi, and Changyoung Kim✉
Applied Physics Letters 118, 173102 (2021)
Effect of the sample work function on alkali metal dosing induced electronic structure change
Saegyeol Jung, Yukiaki Ishida, Minsoo Kim, Masamichi Nakajima, Shigeyuki Ishida, Hiroshi Eisaki, Woojae Choi, Yong Seung Kwon, Jonathan D. Denlinger, Toshio Otsu, Yohei Kobayashi, Soonsang Huh✉, and Changyoung Kim✉
Journal of Electron Spectroscopy and Related Phenomena 249, 147045 (2021)
A compact and stable incidence-plane-rotating second harmonics detector
S. H. Kim, S. Jung, B. Seok, Y. S. Kim, H. Park, T. Otsu, Y. Kobayashi, C. Kim, and Y. Ishida✉
Review of Scientific Instruments 92, 043905 (2021)
Spin-orbit coupling driven orbital-selective doping effect in Sr2Ru1-xIrxO4
Junyoung Kwon, Beom Seo Kim, Mi Kyung Kim, Jonathan Denlinger, Aaron Bostwick, Eli Rotenberg, Nara Lee, Hwan Young Choi, Jae Young Moon, Young Jai Choi, Junsik Mun, Miyoung Kim, Yoshiyuki Yoshida, Wonshik Kyung✉, and Changyoung Kim✉
Physical Review B 103, L081104 (2021)
Direct observation of kink evolution with the approach to the metal-insulator transition in NiS2-xSex: Hund's coupling effect and coherence energy scales
Bo Gyu Jang*, Garam Han*, Ina Park, Dongwook Kim, Yoonyoung Koh, Yeong Kwan Kim, Wonshik Kyung, Hyeong-Do Kim, Cheng-Maw Cheng, Ku Tsuei, Kyungdong Lee, Namjung Hur, Ji Hoon Shim✉, Changyoung Kim✉, and Gabriel Kotliar
Nature Communications 12, 1208 (2021)
Electric-field-driven octahedral rotation in perovskite
Wonshik Kyung*, Choong H. Kim*, Yeong Kwan Kim, Beomyoung Kim, Chul Kim, Woobin Jung, Junyoung Kwon, Minsoo Kim, Aaron Bostwick, Jonathan D. Denlinger, Yoshiyuki Yoshida, and Changyoung Kim✉
npj Quantum Materials 6, 5 (2021)
Studying local Berry curvature in 2H-WSe2 by circular dichroism photoemission utilizing crystal mirror plane
Soohyun Cho, Jin-Hong Park, Soonsang Huh, Jisook Hong, Wonshik Kyung, Byeong-Gyu Park, J. D. Denlinger, Jihoon Shim, Changyoung Kim✉, and Seung Ryong Park✉