9 citations · 20 across the 15 of their papers we have counts for
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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…
Many-body benchmarking of DFT local-registry energetics in bilayer InSe
Jeonghwan Ahn, Abdulgani Annaberdiyev, Jovan Nelson +2
Density functional theory (DFT) is widely used to model twisted bilayers, but the accuracy of the local stacking energetics underlying such models remains uncertain. Here, we bench…
Thickness-Dependent Interlayer Coupling and Semiconductor-to-Semimetal Crossover in Arsenene Multilayers
Jeonghwan Ahn, Seoung-Hun Kang, Jaron T. Krogel
Interlayer interactions in layered materials are often assumed to transfer from the bilayer to the bulk, but this assumption can fail when chemically active out-of-plane orbitals p…
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…