27 citations · 38 across the 6 of their papers we have counts for
5 papers · 1 filter
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…