51 citations · 196 across the 12 of their papers we have counts for
14 papers
Observation of gapless collective charge fluctuations in an Anderson insulating state
Jong Mok Ok, Beom Jun Park, Junik Hwang +5
Understanding the nature of collective charge dynamics in the Coulomb gap phase is essential for revealing the existence of many-body localization. However, the corresponding many-…
Correlated Oxide Dirac Semimetal in the Extreme Quantum Limit
Jong Mok Ok, Narayan Mohanta, Jie Zhang +17
Quantum materials (QMs) with strong correlation and non-trivial topology are indispensable to next-generation information and computing technologies. Exploitation of topological ba…
Atomic structure of initial nucleation layer in hexagonal perovskite BaRuO thin films
Sangmoon Yoon, Jong Mok Ok, Sang A Lee +4
Hexagonal perovskites are an attractive group of materials due to their various polymorph phases and rich structure-property relationships. BaRuO3 (BRO) is a prototypical hexagonal…
Semi-Dirac and Weyl Fermions in Transition Metal Oxides
Narayan Mohanta, Jong Mok Ok, Jie Zhang +4
We show that a class of compounds with 4/ crystalline symmetry hosts three-dimensional semi-Dirac fermions. Unlike the known two-dimensional semi-Dirac points, the degenera…
Strain-induced atomic-scale building blocks for ferromagnetism in epitaxial LaCoO3
Sangmoon Yoon, Xiang Gao, Jong Mok Ok +7
The origin of strain-induced ferromagnetism, which is robust regardless of the type and degree of strain in LaCoO3 (LCO) thin films, is enigmatic despite intensive research efforts…
Twin-domain formation in epitaxial triangular lattice delafossites
Jong Mok Ok, Sangmoon Yoon, Andrew R. Lupini +4
Twin domains are often found as structural defects in symmetry mismatched epitaxial thin films. The delafossite ABO2, which has a rhombohedral structure, is a good example that oft…