140 citations · 425 across the 9 of their papers we have counts for
9 papers
Electrically Tunable Macroscopic Quantum Tunneling in a Graphene-based Josephson Junction
Gil-Ho Lee, Dongchan Jeong, Jae-Hyun Choi +2
Stochastic switching-current distribution in a graphene-based Josephson junction exhibits a crossover from the classical to quantum regime, revealing the macroscopic quantum tunnel…
Above-gap Conductance Anomaly Studied in Superconductor-graphene-superconductor Josephson Junctions
Jae-Hyun Choi, Hu-Jong Lee, Yong-Joo Doh
We investigated the electrical transport properties of superconductor-graphene-superconductor (SGS) Josephson junctions. In low voltage bias, we observed conventional proximity-cou…
Observation of Supercurrent in PbIn-Graphene-PbIn Josephson Junction
Dongchan Jeong, Jae-Hyun Choi, Gil-Ho Lee +3
Superconductor-graphene-superconductor (SGS) junction provides a unique platform to study relativistic electrodynamics of Dirac fermions combined with proximity-induced superconduc…
Inelastic scattering in a monolayer graphene sheet; a weak-localization study
Dong-Keun Ki, Dongchan Jeong, Jae-Hyun Choi +2
Charge carriers in a graphene sheet, a single layer of graphite, exhibit much distinctive characteristics to those in other two-dimensional electronic systems because of their chir…
Pseudogap Behavior Revealed in Interlayer Tunneling in Overdoped BiSrCaCuO
Myung-Ho Bae, Jae-Hyun Park, Jae-Hyun Choi +2
We report heating-compensated interlayer tunneling spectroscopy (ITS) performed on stacks of overdoped BiSrCaCuO intrinsic junctions, where most of bias-induced…
Josephson-vortex-flow terahertz emission in layered high- superconducting single crystals
Myung-Ho Bae, Hu-Jong Lee, Jae-Hyun Choi
We report on the successful terahertz emission (0.61 THz) that is continuous and tunable in its frequency and power, by driving Josephson vortices in resonance with the colle…