313 citations · 1.9k across the 26 of their papers we have counts for
10 papers · 1 filter
In situ investigation of conducting interface formation in LaAlO3/SrTiO3 heterostructure
Hyang Keun Yoo, Luca Moreschini, Aaron Bostwick +4
The high-mobility conducting interface (CI) between LaAlO_{3}(LAO) and SrTiO_{3}(STO) has revealed many fascinating phenomena, including exotic magnetism and superconductivity. But…
Enhanced tunability of two-dimensional electron gas on SrTiO3 through heterostructuring
Hyang Keun Yoo, Luca Moreschini, Andrew L. Walter +4
Two-dimensional electron gases (2DEGs) on the SrTiO3 (STO) surface or in STO-based heterostructures have exhibited many intriguing phenomena, which are strongly dependent on the 2D…
Electronic structure and charge-density wave transition in monolayer VS_{2}
Hyuk Jin Kim, Byoung Ki Choi, In Hak Lee +6
Vanadium disulfide (VS_{2}) attracts elevated interests for its charge-density wave (CDW) phase transition, ferromagnetism, and catalytic reactivity, but the electronic structure o…
Emergence of a Metal-Insulator Transition and High Temperature Charge Density Waves in VSe2 at the Monolayer Limit
Ganbat Duvjir, Byoung Ki Choi, Iksu Jang +13
Emergent phenomena driven by electronic reconstructions in oxide heterostructures have been intensively discussed. However, the role of these phenomena in shaping the electronic pr…
Universal renormalization group flow toward perfect Fermi-surface nesting driven by enhanced electron-electron correlations in monolayer vanadium diselenide
Iksu Jang, Ganbat Duvjir, Byoung Ki Choi +3
In the present study we examine nature of a charge ordering transition in monolayer vanadium diselenide (), which would be distinguished from that of bulk sample…
Electronic Structure of the Kitaev Material - Probed by Photoemission and Inverse Photoemission Spectroscopies
Soobin Sinn, Choong Hyun Kim, Beom Hyun Kim +11
Recently, - has attracted much attention as a possible material realization of the honeycomb Kitaev model, which may stabilize a quantum-spin-liquid state. Comp…
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…
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…
Effective screening and the plasmaron bands in Graphene
Andrew L. Walter, Aaron Bostwick, Ki-Joon Jeon +10
Electron-plasmon coupling in graphene has recently been shown to give rise to a "plasmaron" quasiparticle excitation. The strength of this coupling has been predicted to depend on…
Fundamental thickness limit of itinerant ferromagnetic SrRuO thin films
Young Jun Chang, Choong H. Kim, S. -H. Phark +3
We report on a fundamental thickness limit of the itinerant ferromagnetic oxide SrRuO that might arise from the orbital-selective quantum confinement effects. Experimentally, S…