130 citations · 249 across the 7 of their papers we have counts for
7 papers
Topological edge states in bowtie ladders with different cutting edges
Jung-Wan Ryu, Sungjong Woo, Nojoon Myoung +1
We have studied topological edge states in bowtie ladders with various edge truncations. The symmetric bowtie ladder, which comprises two trivial Su-Schrieffer-Heeger (SSH) lattice…
Symmetry-Protected Degeneracies in the Electronic Band Structure of Oxidized Black Phosphorous
Seoung-Hun Kang, Jejune Park, Sungjong Woo +1
We explore the oxidation of a single layer of black phosphorous using ab initio density functional theory calculation. We search for the equilibrium structures of phosphorene oxide…
Emergent localized states at the interface of a twofold -symmetric lattice
Jung-Wan Ryu, Nojoon Myoung, Sungjong Woo +3
We consider the role of non-triviality resulting from a non-Hermitian Hamiltonian that conserves twofold PT-symmetry assembled by interconnections between a PT-symmetric lattice an…
Splitting of conductance resonance through a magnetic quantum dot in graphene
Nojoon Myoung, Jung-Wan Ryu, Hee Chul Park +2
We report a dual resonance feature in ballistic conductance through a quantum Hall graphene nanoribbon with a magnetic quantum dot. Such a magnetic quantum dot localizes Dirac ferm…
Strain-shear coupling in bilayer MoS2
Jae-Ung Lee, Sungjong Woo, Jaesung Park +3
Layered materials such as graphite and transition metal dichalcogenides have extremely anisotropic mechanical properties owing to orders of magnitude difference between in-plane an…
Poisson's Ratio of Layered Two-dimensional Crystals
Sungjong Woo, Hee Chul Park, Young-Woo Son
We present first-principles calculations of elastic properties of multilayered two-dimensional crystals such as graphene, h-BN and 2H-MoS2 which shows that their Poisson's ratios a…
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…