32 citations · 128 across the 23 of their papers we have counts for
23 papers
Theory of the Strain Engineering of Graphene Nanoconstrictions
Masahiko Hayashi, Hideo Yoshioka, Hikari Tomori +1
Strain engineering is one of the key technologies for using graphene as an electronic device: the strain-induced pseudo-gauge field reflects Dirac electrons, thus opening the so-ca…
Time-dependent Ginzburg-Landau equation and Boltzmann transport equation for charge-density-wave conductors
Yositake Takane, Masahiko Hayashi, Hiromichi Ebisawa
The time-dependent Ginzburg-Landau equation and the Boltzmann transport equation for one-dimensional charge-density-wave (CDW) conductors are derived from a microscopic model by ap…
A Numerical Formulation to Calculate the Conductance of Mesoscopic Conductors Using Singular Value Decomposition
Masahiko Hayashi
We present a new formulation to calculate the electric conductance of mesoscopic conductors by utilizing the singular value decomposition, which is a mathematical technique to mani…
Theory of Antiferromagnetic Order in High-Tc Oxides: An Approach Based on Ginzburg-Landau Expansion
Masahiko Hayashi, Yasunari Tanuma, Kazuhiro Kuboki
The mean-field phase diagram of antiferromagnetic order in t-J model has been examined, using the free energy obtained by Ginzburg-Landau (GL) expansion. We extended the usual GL t…
Domain-wall structure of a classical Heisenberg ferromagnet on a Mobius strip
Masanao Yoneya, Kazuhiro Kuboki, Masahiko Hayashi
We study theoretically the structure of domain walls in ferromagnetic states on Mobius strips. A two-dimensional classical Heisenberg ferromagnet with single-site anisotropy is tre…
The Mixed State of Charge-Density-Wave in a Ring-Shaped Single Crystals
Masahiko Hayashi, Hiromichi Ebisawa, Kazuhiro Kuboki
Charge-density-wave (CDW) phase transition in a ring-shaped crystals, recently synthesized by Tanda et al. [Nature, 417, 397 (2002)], is studied based on a mean-field-approximation…