131 citations · 407 across the 10 of their papers we have counts for
10 papers
Pseudospin and Deformation-induced Gauge Field in Graphene
K. Sasaki, R. Saito
The basic properties of -electrons near the Fermi level in graphene are reviewed from a point of view of the pseudospin and a gauge field coupling to the pseudospin. The applica…
Aharanov-Bohm effect for the edge states of zigzag carbon nanotubes
K. Sasaki, M. Suzuki, R. Saito
Two delocalized states of metallic zigzag carbon nanotubes near the Dirac point can be localized by the Aharanov-Bohm magnetic field around 20 Tesla. The dependence of the localiza…
Gauge field for edge state in graphene
Ken-ichi Sasaki, Shuichi Murakami, Riichiro Saito
By considering the continuous model for graphene, we analytically study a special gauge field for the edge state. The gauge field explains the properties of the edge state such as…
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…
Fractional flux periodicity of a twisted planar square lattice
K. Sasaki, Y. Kawazoe, R. Saito
We present fractional flux periodicity in the ground state of planar systems made of a square lattice whose boundary is compacted into a torus. The ground-state energy shows a frac…
Local Energy Gap in Deformed Carbon Nanotubes
K. Sasaki, Y. Kawazoe, R. Saito
The effects of graphite surface geometrical deformation on the dynamics of conducting electrons are investigated theoretically. The analysis is performed within the framework of a…