209 citations · 1.5k across the 69 of their papers we have counts for
3 papers · 1 filter
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…
Conductance Fluctuations in Disordered Wires with Perfectly Conducting Channels
Yositake Takane, Katsunori Wakabayashi
We study conductance fluctuations in disordered quantum wires with unitary symmetry focusing on the case in which the number of conducting channels in one propagating direction is…