178 citations · 255 across the 5 of their papers we have counts for
5 papers
Transferable empirical pseudopotenials from machine learning
Rokyeon Kim, Young-Woo Son
Machine learning is used to generate empirical pseudopotentials that characterize the local screened interactions in the Kohn-Sham Hamiltonian. Our approach incorporates momentum-r…
Two-dimensional higher-order topology in monolayer graphdiyne
Eunwoo Lee, Rokyeon Kim, Junyeong Ahn +1
Based on first-principles calculations and tight-binding model analysis, we propose monolayer graphdiyne as a candidate material for a two-dimensional higher-order topological insu…
Crystalline topological Dirac semimetal phase in rutile structure -PtO
Rokyeon Kim, Bohm-Jung Yang, Choong H. Kim
Based on first-principles calculations and symmetry analysis, we propose that a transition metal rutile oxide, in particular -PtO, can host a three-dimensional topological…
Electronic Reconstruction Enhanced Tunneling Conductance at Terrace Edges of Ultrathin Oxide Films
Lingfei Wang, Rokyeon Kim, Yoonkoo Kim +10
Quantum mechanical tunneling of electrons across ultrathin insulating oxide barriers has been studied extensively for decades due to its great potential in electronic device applic…
Enhanced Upper Critical Fields in a New Quasi-one-dimensional Superconductor Nb2PdxSe5
Seunghyun Khim, Bumsung Lee, Ki-Young Choi +9
We report a discovery of superconductivity with Tc = 5.5 K in Nb2PdxSe5, in which one-dimensional (1D) Nb-Se chains existing along the b-direction hybridize each other to form the…