158 citations · 193 across the 4 of their papers we have counts for
4 papers
Stabilization mechanism of edge states in graphene
K. Sasaki, S. Murakami, R. Saito
It has been known that edge states of a graphite ribbon are zero-energy, localized eigen-states. We show that next nearest-neighbor hopping process decreases the energy of the edge…
Controlling edge states of zigzag carbon nanotubes by the Aharonov-Bohm flux
K. Sasaki, S. Murakami, R. Saito +1
It has been known theoretically that localized states exist around zigzag edges of a graphite ribbon and of a carbon nanotube, whose energy eigenvalues are located between conducti…
Re-parameterization Invariance in Fractional Flux Periodicity
Shuichi Murakami, Ken-ichi Sasaki, Riichiro Saito
We analyze a common feature of a nontrivial fractional flux periodicity in two-dimensional systems. We demonstrate that an addition of fractional flux can be absorbed into re-param…
Fractional Flux Periodicity in Doped Carbon Nanotubes
K. Sasaki, S. Murakami, R. Saito
An anomalous magnetic flux periodicity of the ground state is predicted in two-dimensional cylindrical surface composed of square and honeycomb lattice. The ground state and persis…