225 citations · 563 across the 13 of their papers we have counts for
13 papers
Controlling spin-orbit coupling to tailor type-II Dirac bands
Nguyen Huu Lam, Phuong Lien Nguyen, Byoung Ki Choi +12
NiTe2, a type-II Dirac semimetal with strongly tilted Dirac band, has been explored extensively to understand its intriguing topological properties. Here, using density-functional…
Interlayer coupling and ultrafast hot electron transfer dynamics in metallic VSe2/graphene van der Waals heterostructures
Tae Gwan Park, Byoung Ki Choi, Junho Park +3
Atomically thin vanadium diselenide (VSe2 ) is a two-dimensional transition metal dichalcogenide exhibiting attractive properties due to its metallic 1T-phase. With the recent deve…
Influence of nano-hole defects and their geometric arrangements on the superfluid density in atomically thin single crystals of indium superconductor
Mengke Liu, Hyoungdo Nam, Jungdae Kim +2
Using Indium on Si(111) as an atomically thin superconductor platform, and by systematically controlling the density of nano-hole defects (nanometer size voids), we reveal the impa…
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…
Visualizing landscapes of the superconducting gap in heterogeneous superconductor thin films: geometric influences on proximity effects
Jungdae Kim, Victor Chua, Gregory A. Fiete +3
The proximity effect is a central feature of superconducting junctions as it underlies many important applications in devices and can be exploited in the design of new systems with…
Universal Quenching of Superconductivity in Two-dimensional Nano-islands
Jungdae Kim, Gregory A. Fiete, Hyoungdo Nam +2
We systematically address superconductivity of Pb nano-islands with different thicknesses and lateral sizes via a scanning tunneling microscopy/spectroscopy. Reduction of the super…
Lepton flavor violation in muonium decay and muon colliders in models with heavy neutrinos
Gorazd Cvetic, Claudio O. Dib, Choong-Sun Kim +1
We study the lepton-flavor-violating reaction within two extensions of the standard model that include heavy neutrinos. The reaction is studied in the low ene…
Top quark Kaluza-Klein mode mixing in the Randall-Sundrum bulk Standard Model and B -> X_s gamma
C. S. Kim, J. D. Kim, Jeonghyeon Song
We study top quark Kaluza-Klein (KK) mode mixing in the Randall-Sundrum scenario with all the SM fermions and gauge bosons in the bulk. Even though the simple assumption of univers…
On Lepton Flavor Violation in Tau Decays
G. Cvetic, C. Dib, C. S. Kim +1
We study lepton flavor violation (LFV) in tau decays induced by heavy Majorana neutrinos within two models: (I) the Standard Model with additional right-handed heavy Majorana neutr…
Muon Anomalous Magnetic Moment (g-2)_mu and the Randall-Sundrum Model
C. S. Kim, J. D. Kim, Jeonghyeon Song
We study the effects of the Kaluza-Klein gravitons in the Randall-Sundrum model on the recent BNL measurements of the muon (g-2) deviation from the standard model prediction. By ex…
Hierarchical Quark Mixing and Bimaximal Lepton Mixing on the Same Footing
C. S. Kim, J. D. Kim
We show that not only the hierarchical quark CKM mixing matrix but also the "bimaximal" lepton flavor mixing matrix can be derived from the same mass matrix ansatz based on the bro…
Type II Anyon Superconductivity
Jewan Kim, Jungdae Kim, Taejin Lee
Assuming that the superconductivity which is described by the low energy effective action of the anyon system may be type II, we discuss its characteristics. We also study physical…