209 citations · 589 across the 10 of their papers we have counts for
16 papers
Electronic transport properties of graphene nanoribbons
Katsunori Wakabayashi, Yositake Takane, Masayuki Yamamoto +1
We will present brief overview on the electronic and transport properties of graphene nanoribbons focusing on the effect of edge shapes and impurity scattering. The low-energy elec…
Conductance Distribution in Disordered Quantum Wires with a Perfectly Conducting Channel
Yositake Takane, Shingo Iwasaki, Yuka Yoshioka +2
We study the conductance of phase-coherent disordered quantum wires focusing on the case in which the number of conducting channels is imbalanced between two propagating directions…
Spin Injection and Detection in a Mesoscopic Superconductor at Low Temperatures
Yositake Takane
We theoretically study nonequilibrium spin transport in a superconducting wire connected by tunnel junctions to two ferromagnetic metal wires, each of which serves as an injector o…
Nearly Perfect Single-Channel Conduction in Disordered Armchair Nanoribbons
Masayuki Yamamoto, Yositake Takane, Katsunori Wakabayashi
The low-energy spectrum of graphene nanoribbons with armchair edges (armchair nanoribbons) is described as the superposition of two non-equivalent Dirac points of graphene. In spit…
Hamiltonian decomposition for bulk and surface states
Ken-ichi Sasaki, Yuji Shimomura, Yositake Takane +1
We demonstrate that a tight-binding Hamiltonian with nearest- and next-nearest-neighbor hopping integrals can be decomposed into bulk and boundary parts in a general lattice system…
Edge Effect on Electronic Transport Properties of Graphene Nanoribbons and Presence of Perfectly Conducting Channel
Katsunori Wakabayashi, Yositake Takane, Masayuki Yamamoto +1
Numerical calculations have been performed to elucidate unconventional electronic transport properties in disordered nanographene ribbons with zigzag edges (zigzag ribbons). The en…