450 citations · 2.2k across the 27 of their papers we have counts for
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Tunneling Electroresistance Induced by Interfacial Phase Transitions in Ultrathin Oxide Heterostructures
Lu Jiang, Woo Seok Choi, Hyoungjeen Jeen +8
The ferroelectric (FE) control of electronic transport is one of the emerging technologies in oxide heterostructures. Many previous studies in FE tunnel junctions (FTJs) exploited…
Orienting oxygen vacancies for fast catalytic reaction
Hyoungjeen Jeen, Zhonghe Bi, Woo Seok Choi +4
Catalysis is indispensable to chemical processes and relevant to many aspects of modern life. Owing to the intriguing electronic structures and good ionic properties, multivalent t…
Reversible redox reactions in an epitaxially stabilized SrCoOx oxygen sponge
Hyoungjeen Jeen, Woo Seok Choi, Michael D. Biegalski +8
Fast, reversible redox reactions in solids at low temperatures without thermomechanical degradation are a promising strategy for enhancing the overall performance and lifetime of m…
Reversal of the lattice structure in SrCoOx epitaxial thin films studied by real-time optical spectroscopy and first-principles calculations
Woo Seok Choi, Hyoungjeen Jeen, Jun Hee Lee +4
Using real-time spectroscopic ellipsometry, we directly observed a reversible lattice and electronic structure evolution in SrCoOx (x = 2.5 - 3) epitaxial thin films. Drastically d…
Topotactic phase transformation of the brownmillerite SrCoO2.5 to the perovskite SrCoO3-δ
Hyoungjeen Jeen, Woo Seok Choi, John W. Freeland +3
Oxygen stoichiometry is one of the most important elements in determining the physical properties of transition metal oxides (TMOs). A small fractional change in the oxygen content…