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Spin-dependent Refraction at the Atomic Step of Transition-metal Dichalcogenides
Tetsuro Habe, Mikito Koshino
We theoretically propose a novel spin-dependent electronic transport mechanism in which the spin-unpolarized electron beam is split into different directions depending on spins at…
Incommensurate double-walled carbon nanotubes as one-dimensional moiré crystals
Mikito Koshino, Pilkyung Moon, Young-Woo Son
Cylindrical multishell structure is one of the prevalent atomic arrangements in nanowires. Being multishell, the well-defined atomic periodicity is hardly realized in it because th…
Quantum transport in three-dimensional Weyl electron system -- in the presence of charged impurity scattering
Yuya Ominato, Mikito Koshino
We theoretically study the quantum transport in three-dimensional Weyl electron system in the presence of the charged impurity scattering using a self-consistent Born approximation…
Optical absorption of twisted bilayer graphene with interlayer potential asymmetry
Pilkyung Moon, Young-Woo Son, Mikito Koshino
We investigate the band structure and the optical absorption spectrum of twisted bilayer graphenes with changing interlayer bias and Fermi energy simultaneously. We show that the i…
Topological zero modes and Dirac points protected by spatial symmetry and chiral symmetry
Mikito Koshino, Takahiro Morimoto, Masatoshi Sato
We explore a new class of topologically stable zero energy modes which are protected by coexisting chiral and spatial symmetries. If a chiral symmetric Hamiltonian has an additiona…
Electronic properties of graphene hexagonal boron nitride moiré superlattice
Pilkyung Moon, Mikito Koshino
We theoretically investigate the electronic structures of moiré superlattices arising in monolayer / bilayer graphene stacked on hexagonal boron nitride (hBN) in presence and absen…