Transmission through a boundary between monolayer and bilayer graphene
The electron transmission between monolayer and bilayer graphene is theoretically studied
for zigzag and armchair boundaries within an effective-mass scheme. Due to the presence …
for zigzag and armchair boundaries within an effective-mass scheme. Due to the presence …
Conductance distributions in disordered quantum spin-Hall systems
We study numerically the charge conductance distributions of disordered quantum spin-Hall
(QSH) systems using a quantum network model. We have found that the conductance …
(QSH) systems using a quantum network model. We have found that the conductance …
Exact exponents for the spin quantum Hall transition in the presence of multiple edge channels
Critical properties of quantum Hall systems are affected by the presence of extra edge
channels—those that are present, in particular, at higher plateau transitions. We study this …
channels—those that are present, in particular, at higher plateau transitions. We study this …
Anomalous enhancement of the Boltzmann conductivity in disordered zigzag graphene nanoribbons
Y Takane - Journal of the Physical Society of Japan, 2010 - journals.jps.jp
We study the conductivity of disordered zigzag graphene nanoribbons in the incoherent
regime by using the Boltzmann equation approach. The band structure of zigzag …
regime by using the Boltzmann equation approach. The band structure of zigzag …
Nonuniversal shot noise in disordered quantum wires with channel-number imbalance
Y Takane - Journal of the Physical Society of Japan, 2010 - journals.jps.jp
The number of conducting channels for one propagating direction is equal to that for the
other direction in ordinary quantum wires. However, they can be imbalanced in graphene …
other direction in ordinary quantum wires. However, they can be imbalanced in graphene …
Average and Second Moment of the Conductance of Randomly Coupled Chiral Channels
Y Takane - Journal of the Physical Society of Japan, 2009 - jstage.jst.go.jp
accepted June 30, 2009; published August 25, 2009) We study the conductance of a
spinless non-interacting electron system consisting of randomly coupled NR right-moving …
spinless non-interacting electron system consisting of randomly coupled NR right-moving …
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R Bondesan, IA Gruzberg, JL Jacobsen, H Obuse… - Phys Rev Lett - scholar.archive.org
Critical properties of quantum Hall systems are affected by the presence of extra edge
channels—present, in particular, at higher plateau transitions. We study this phenomenon …
channels—present, in particular, at higher plateau transitions. We study this phenomenon …