172 citations · 691 across the 15 of their papers we have counts for
15 papers
Spin and Valley Polarized Multiple Fermi Surfaces of α-RuCl/Bilayer Graphene Heterostructure
Soyun Kim, Jeonghoon Hong, Kenji Watanabe +4
We report the transport properties of -RuCl/bilayer graphene heterostructures, where carrier doping is induced by a work function difference, resulting in distinct electron…
Optoelectronic manifestation of orbital angular momentum driven by chiral hopping in helical Se chains
Bumseop Kim, Dongbin Shin, Seon Namgung +3
Chiral materials have garnered significant attention in the field of condensed matter physics. Nevertheless, the magnetic moment induced by the chiral spatial motion of electrons i…
Dynamical mean-field theory study of a ferromagnetic CrI3 monolayer
Chang-Jong Kang, Jeonghoon Hong, Jeongwoo Kim
We have employed one of the well-known many-body techniques, density functional theory plus dynamical mean-field theory (DFT + DMFT), to investigate the electronic structure of fer…
Vertical transverse transport induced by hidden in-plane Berry curvature in two dimensions
Kyoung-Whan Kim, Hogyun Jeong, Jeongwoo Kim +1
The discovery of Berry curvature (BC) has spurred a tremendous surge of research into various quantum phenomena such as the anomalous transport of electrons and the topological pha…
Proceedings of the second MadAnalysis 5 workshop on LHC recasting in Korea
Benjamin Fuks, Pyungwon Ko, Seung J. Lee +32
We document the activities performed during the second MadAnalysis 5 workshop on LHC recasting, that was organised in KIAS (Seoul, Korea) on February 12-20, 2020. We detail the imp…
Prediction of ferroelectricity-driven Berry curvature enabling charge- and spin-controllable photocurrent in tin telluride monolayers
Jeongwoo Kim, Kyoung-Whan Kim, Dongbin Shin +4
In symmetry-broken crystalline solids, pole structures of Berry curvature (BC) can emerge, and they have been utilized as a versatile tool for controlling transport properties. For…
Spin-split band hybridization in graphene proximitized with -RuCl nanosheets
Soudabeh Mashhadi, Youngwook Kim, Jeongwoo Kim +8
Proximity effects induced in the 2D Dirac material graphene potentially open access to novel and intriguing physical phenomena. Thus far, the coupling between graphene and ferromag…
Axion Insulator State with ferromagnetic ordering in CrI3/Bi2Se3/MnBi2Se4 Heterostructure
Y. S. Hou, R. Q. Wu
Realizing axion insulator state with a uniform magnetization considerably facilitates experimental explorations of the intriguing topological magnetoelectric effect, a hallmark of…
Unraveling materials Berry curvature and Chern-Simons numbers from real-time evolution of Bloch states
Dongbin Shin, Shunsuke A. Sato, Hannes Hübener +4
Materials can be classified by the topological character of their electronic structure and, in this perspective, global attributes immune to local deformations have been discussed…
Effect of distance on photoluminescence quenching and proximity-induced spin-orbit coupling in graphene-WSe2 heterostructures
Bowen Yang, Everardo Molina, Jeongwoo Kim +9
Spin-orbit coupling (SOC) in graphene can be greatly enhanced by proximity coupling it to transition metal dichalcogenides (TMDs) such as WSe2. We find that the strength of the acq…
Magnetize Topological Surface States of Bi2Se3 with a CrI3 Monolayer
Yusheng Hou, Ruqian Wu
To magnetize surfaces of topological insulators without damaging their topological feature is a crucial step for the realization of the quantum anomalous Hall effect (QAHE), and st…
Weyl node assisted conductivity switch in interfacial phase change memory with van der Waals interfaces
Jinwoong Kim, Jeongwoo Kim, Young-Sun Song +3
The interfacial phase-change memory (iPCM) GeTe/Sb2Te3, promising candidates for the next generation non-volatile random-access memories, exhibits fascinating topological propertie…
New class of 3D topological insulator in double perovskite
Shu-Ting Pi, Hui Wang, Jeongwoo Kim +3
We predict a new class of three-dimensional topological insulators (TIs) in which the spin-orbit coupling (SOC) can more effectively generate a large band gap at point. The ban…
Tunable spin-orbit coupling and symmetry-protected edge states in graphene/WS
Bowen Yang, Min-Feng Tu, Jeongwoo Kim +6
We demonstrate clear weak anti-localization (WAL) effect arising from induced Rashba spin-orbit coupling (SOC) in WS-covered single-layer and bilayer graphene devices. Contrary…
Topological phase transition in Dirac fermionic heterostructures
Jeongwoo Kim, Jinwoong Kim, Ki-Seok Kim +1
Materials with non-trivial topology in their electronic structures enforce the existence of helical Dirac fermionic surface states. We discovered emergent topological phases in the…