321 citations · 2.4k across the 45 of their papers we have counts for
10 papers · 1 filter
Giant Magnetization Enhancement at Ultrathin Limit of an Orthoferrite
Jin Young Oh, Yaolong Xing, Seung Gyo Jeong +18
Low-dimensional magnetic systems have received significant interest due to their high scalability and energy efficiency for future electromagnetic applications. However, low-dimens…
Field-controlled quantum anomalous Hall effect in electron-doped CrSiTe monolayer: a first-principles prediction
Sungmo Kang, Seungjin Kang, Heung-Sik Kim +1
We report Chern insulating phases emerging from a single layer of layered chalcogenide CrSiTe, a transition metal trichacogenides (TMTC) material, in the presence of charge d…
Anomalous Hall signatures of nonsymmorphic nodal lines in doped chromium chalcospinel CuCrSe
Subhasis Samanta, Gang Chen, Heung-Sik Kim
An emerging phase of matter among the class of topological materials is nodal line semimetal, possessing symmetry-protected one-dimensional gapless lines at the (or close to) the F…
Spin-waves in 2D honeycomb lattice -type van der Waals antiferromagnet CoPS
Chaebin Kim, Jaehong Jeong, Takatsugu Masuda +5
The magnetic excitations in CoPS, a two-dimensional van der Waals (vdW) antiferromagnet with spin on a honeycomb lattice, has been measured using powder inelastic neutr…
Nearly triple nodal point topological phase in half-metallic GdN
Jinwoong Kim, Heung-Sik Kim, David Vanderbilt
Recent developments in topological semimetals open a way to realize relativistic dispersions in condensed matter systems. One recently studied type of topological feature is the "t…
Trimer Bonding States on the Surface of Transition-metal Dichalcogenide TaTe2
Chen Chen, Heung-Sik Kim, Alemayehu S. Admasu +4
We report a comprehensive study on the surface structural and electronic properties of TaTe2 at room temperature. The surface structure was investigated using both low energy elect…
Symmorphic intersecting nodal rings in semiconducting layers
Cheng Gong, Yuee Xie, Yuanping Chen +2
The unique properties of topological semimetals have strongly driven efforts to seek for new topological phases and related materials. Here, we identify a critical condition for th…
Crystal structure and magnetism in -RuCl3: an ab-initio study
Heung-Sik Kim, Hae-Young Kee
-RuCl has been proposed recently as an excellent playground for exploring Kitaev physics on a two-dimensional (2D) honeycomb lattice. However, structural clarification of th…
Collinear and non-collinear spin ground state of wurtzite CoO
Myung Joon Han, Heung-Sik Kim, Dong Geun Kim +1
Collinear and non-collinear spin structures of wurtzite phase CoO often appearing in nano-sized samples are investigated using first-principles density functional theory calculatio…
Topological Quantum Phase Transition in 5 Transition Metal Oxide NaIrO
Choong H. Kim, Heung Sik Kim, Hogyun Jeong +2
We predict a quantum phase transition from normal to topological insulators in the 5 transition metal oxide NaIrO, where the transition can be driven by the change of th…