690 citations · 1.8k across the 4 of their papers we have counts for
5 papers
New Generation of Massless Dirac Fermions in Graphene under External Periodic Potentials
Cheol-Hwan Park, Li Yang, Young-Woo Son +2
We show that new massless Dirac fermions are generated when a slowly varying periodic potential is applied to graphene. These quasiparticles, generated near the supercell Brillouin…
Electron Beam Supercollimation in Graphene Superlattices
Cheol-Hwan Park, Young-Woo Son, Li Yang +2
Although electrons and photons are intrinsically different, importing useful concepts in optics to electronics performing similar functions has been actively pursued over the last…
Anisotropic behaviors of massless Dirac fermions in graphene under periodic potential
Cheol-Hwan Park, Li Yang, Young-Woo Son +2
Charge carriers of graphene show neutrino-like linear energy dispersions as well as chiral behavior near the Dirac point. Here we report highly unusual and unexpected behaviors of…
Origins of anomalous electronic structures of epitaxial graphene on silicon carbide
Seungchul Kim, Jisoon Ihm, Hyoung Joon Choi +1
On the basis of first-principles calculations, we report that a novel interfacial atomic structure occurs between graphene and the surface of silicon carbide, destroying the Dirac…
Dynamic Jahn-Teller Mechanism of Superconductivity in MgB
Young-Woo Son, Jaejun Yu, Jisoon Ihm
We propose a novel mechanism of superconductivity in MgB based on the dynamic electronic structure of the -orbitals coupled with phonons. A nonconventional superco…