651 citations · 996 across the 8 of their papers we have counts for
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Photocurrent generation at ABA/ABC lateral junction in tri-layer graphene photodetector
Minjung Kim, Seon-Myeong Choi, Ho Ang Yoon +6
Metal-graphene-metal photodetectors utilize photocurrent generated near the graphene/metal junctions and have many advantages including high speed and broad-band operation. Here, w…
Polarization dependence of double resonant Raman scattering band in bilayer graphene
Jae-Ung Lee, Ngor Mbaye Seck, Duhee Yoon +3
The polarization dependence of the double resonant Raman scattering (2D) band in bilayer graphene (BLG) is studied as a function of the excitation laser energy. It has been known t…
Anomalous Optical Phonon Splittings in Sliding Bilayer Graphene
Seon-Myeong Choi, Seung-Hoon Jhi, Young-Woo Son
We study the variations of electron-phonon coupling and their spectroscopic consequences in response to sliding of two layers in bilayer graphene using first-principles calculation…
The stability of graphene band structures against an external periodic perturbation; Na on Graphene
Choongyu Hwang, Sunyoung Shin, Seon-Myeong Choi +7
We report that the band of graphene sensitively changes as a function of an external potential induced by Na especially when the potential becomes periodic at low temperature.…
Electronic topological transition in sliding bilayer graphene
Young-Woo Son, Seon-Myeong Choi, Yoon Pyo Hong +2
We demonstrate theoretically that the topology of energy bands and Fermi surface in bilayer graphene undergoes a very sensitive transition when extremely tiny lateral interlayer sh…
Controlling Energy Gap of Bilayer Graphene by Strain
Seon-Myeong Choi, Seung-Hoon Jhi, Young-Woo Son
Using the first principles calculations, we show that mechanically tunable electronic energy gap is realizable in bilayer graphene if different homogeneous strains are applied to t…
Effects of Strain on Electronic Properties of Graphene
Seon-Myeong Choi, Seung-Hoon Jhi, Young-Woo Son
We present first-principles calculations of electronic properties of graphene under uniaxial and isotropic strains, respectively. The semi-metallic nature is shown to persist up to…