251 citations · 1.5k across the 51 of their papers we have counts for
52 papers
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…
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…
Toward improved property prediction of 2D materials using many-body quantum Monte Carlo methods
Daniel Wines, Jeonghwan Ahn, Anouar Benali +10
The field of two-dimensional (2D) materials has grown dramatically in the last two decades. 2D materials can be utilized for a variety of next-generation optoelectronic, spintronic…
Locality Error Free Effective Core Potentials for 3d Transition Metal Elements Developed for the Diffusion Monte Carlo Method
Tom Ichibha, Yutaka Nikaido, M. Chandler Bennett +4
Pseudopotential locality errors have hampered the applications of the diffusion Monte Carlo (DMC) method in materials containing transition metals, in particular oxides. We have de…
Procedures for assessing the stability of proposed topological materials
Jeonghwan Ahn, Seoung-Hun Kang, Mao-Hua Du +3
We investigate the stability of MnPbBiTe (MPBT), which is predicted to be a magnetic topological insulator (TI), using density functional theory calculations. Our…
Control of Impurity Phase Segregation in a PdCrO/CuCrO Heterostructure
Tom Ichibha, Sangmoon Yoon, Jong Mok Ok +3
PdCrO films are synthesized on CuCrO buffer layers on AlO substrates. This synthesis is accompanied by impurity phase segregation, which hampers the synthesis of hi…