45 citations · 206 across the 6 of their papers we have counts for
6 papers
Dimensionality Control of d-orbital Occupation in Oxide Superlattices
Da Woon Jeong, Woo Seok Choi, Satoshi Okamoto +6
Manipulating the orbital state in a strongly correlated electron system is of fundamental and technological importance for exploring and developing novel electronic phases. Here, w…
Latent Instabilities in Metallic LaNiO3 Films by Strain Control of Fermi-Surface Topology
Hyang Keun Yoo, Seung Ill Hyun, Luca Moreschini +10
Strain control is one of the most promising avenues to search for new emergent phenomena in transition-metal-oxide films. Here, we investigate the strain-induced changes of electro…
Phonon-assisted optical excitation in the narrow bandgap Mott insulator Sr3Ir2O7
H. J. Park, C. H. Sohn, D. W. Jeong +6
We examined the temperature (T) evolution of the optical conductivity spectra of SrIrO over a wide range of 10-400 K. The system was barely insulating, exhibiting a sma…
Temperature Evolution of Itinerant Ferromagnetism in SrRuO3 Probed by Optical Spectroscopy
D. W. Jeong, Hong Chul Choi, Choong H. Kim +12
The temperature () dependence of the optical conductivity spectra of a single crystal SrRuO thin film is studied over a range from 5 to 450 K. We observed signifi…
Dimensional crossover of the electronic structure in LaNiO3 ultrathin films: Orbital reconstruction, Fermi surface nesting, and the origin of the metal-insulator transition
Hyang Keun Yoo, Seung Ill Hyun, Luca Moreschini +9
Dimensionality control in the LaNiO3 (LNO) heterostructure has attracted attention due to its two-dimensional (2D) electronic structure was predicted to have an orbital ordered ins…
Charge states and magnetic ordering in LaMnO3/SrTiO3 superlattices
Woo Seok Choi, D. W. Jeong, S. S. A. Seo +5
We investigated the magnetic and optical properties of [(LaMnO3)n/(SrTiO3)8]20 (n = 1, 2, and 8) superlattices grown by pulsed laser deposition. We found a weak ferromagnetic and s…