1 citations · 2 across the 11 of their papers we have counts for
12 papers
Signatures of symmetry-stabilized Dirac fermions in correlated oxide CaNbO3 thin films
Yunkyu Park, Seoung-Hun Kang, Jeongkeun Song +11
Symmetry-protected electronic states in correlated oxides offer a route to combining topology, lattice tunability, and many-body interactions, but creating such topological electro…
Hybridization-controlled re-entrant electronic phase switching and moire-confined states in twisted bilayer PtTe2
Seoung-Hun Kang, Jeonghwan Ahn, Young-Kyun Kwon
Twisting a van der Waals bilayer changes not only the moiré periodicity but also the local stacking and interlayer hybridization. Here, we show, using fully relaxed first-principle…
Optimizing Density Functional Theory for Strain-Dependent Magnetic Properties of Monolayer MnBiTe with Diffusion Monte Carlo
Jeonghwan Ahn, Swarnava Ghosh, Seoung-Hun Kang +6
Monolayer MnBiTe (MBT) is an intrinsically magnetic topological insulator whose magnetic response is strongly affected by strain and electron correlation. In density fu…
Nonmagnetic Ground State of Rutile RuO from Diffusion Quantum Monte Carlo
Jeonghwan Ahn, Seoung-Hun Kang, Panchapakesan Ganesh +1
Rutile RuO has been proposed as an altermagnet, but its bulk magnetic ground state is still under debate because density-functional calculations give conflicting predictions. U…
Overcoming Quantum Resistivity Scaling in Nanoscale Interconnects Using Delafossite PdCoO2
Seoung-Hun Kang, Youngjun Lee, Sangmoon Yoon +4
Continued scaling into the sub 7 nm regime exacerbates quantum limited resistivity in Cu interconnects. We evaluated layered PdCoO2 and explicitly benchmarked it against Cu to iden…
Reversible Modification of Rashba States in Topological Insulators at Room Temperature by Edge Functionalization
Wonhee Ko, Seoung-Hun Kang, Qiangsheng Lu +7
Quantum materials with novel spin textures from strong spin-orbit coupling (SOC) are essential components for a wide array of proposed spintronic devices. Topological insulators ha…
Coexistence of superconductivity and topological band in a van der Waals Sn1-xInxBi2Te4 crystal
Hoyeon Jeon, Saban Hus, Jewook Park +7
The realization of topological surface states and superconductivity within a single material platform is a crucial step toward achieving topologically nontrivial superconductivity.…
Thickness-Dependent Polaron Crossover in Tellurene
Kunyan Zhang, Chuliang Fu, Shelly Kelly +12
Polarons, quasiparticles arising from electron-phonon coupling, are crucial in understanding material properties such as high-temperature superconductivity and colossal magnetoresi…
Optimizing Density Functional Theory for Strain-Dependent Magnetic Properties of MnBiTe with Diffusion Monte Carlo
Swarnava Ghosh, Jeonghwan Ann, Seoung-Hun Kang +6
In this study, we evaluate the predictive power of density functional theory (DFT) for the magnetic properties of MnBi\(_2\)Te\(_4\) (MBT), an intrinsically magnetic topological in…
Exploring interlayer coupling in the twisted bilayer PtTe
Jeonghwan Ahn, Seoung-Hun Kang, Mina Yoon +1
We have investigated interlayer interactions in the bilayer PtTe system, which influence the electronic energy bands near the Fermi levels. Our diffusion Monte Carlo (DMC) ca…
Distance-Dependent Evolution of Electronic States in Kagome- Honeycomb Lateral Heterostructures in FeSn
Tuan Anh Pham, Seoung-Hun Kang, Yasemin Ozbek +2
In this work, we demonstrate the formation and electronic influence of lateral heterointerfaces in FeSn containing Kagome and honeycomb layers. Lateral heterostructures offer spati…
Theoretical investigation of delafossite-Cu2ZnSnO4 as a promising photovoltaic absorber
Seoung-Hun Kang, Myeongjun Kang, Sang Woon Hwang +4
In the quest for efficient and cost-effective photovoltaic absorber materials beyond silicon, considerable attention has been directed toward exploring alternatives. One such mater…