15 citations · 56 across the 13 of their papers we have counts for
13 papers
Transition between the stick and slip states in a simplified model of magnetic friction
Hisato Komatsu
We introduce a simplified model of magnetic friction, and investigate its behavior using both numerical and analytical methods. When resistance coefficient is large, the moveme…
Analysis of the finite-size effect of the long-range Ising model under Glauber dynamics
Hisato Komatsu
We considered a long-range Ising model under Glauber dynamics and calculated the difference from the mean-field approximation in a finite-size system using perturbation theory. To…
Phase diagram of the dipolar Ising ferromagnet on a kagome lattice
Hisato Komatsu, Yoshihiko Nonomura, Masamichi Nishino
We study the field--temperature phase diagram of the two-dimensional dipolar Ising ferromagnet on a kagome lattice with a specific ratio between the exchange and dipolar constants,…
Analysis of finite-size effect of infinite-range Ising model under Glauber dynamics
Hisato Komatsu
We consider an infinite-range Ising model under the Glauber dynamics and determine the finite-size effect on the distribution of two spin variables as a perturbation of $O \left( 1…
Relaxation process of magnetic friction under sudden changes in velocity
Hisato Komatsu
Although there have been many studies of statistical mechanical models of magnetic friction, most of these have focused on the behavior in the steady state. In this study, we prepa…
Phase diagram of the two-dimensional dipolar Heisenberg model with the Dzyaloshinskii-Moriya interaction and the Ising anisotropy
Hisato Komatsu, Yoshihiko Nonomura, Masamichi Nishino
We study phase transitions in the two-dimensional Heisenberg model with the Dzyaloshinskii-Moriya interaction, the Ising anisotropy (), and the dipolar interaction under zero an…
A model of magnetic friction obeying the Dieterich--Ruina law in the steady state
Hisato Komatsu
We propose a model of magnetic friction and investigate the relation between the frictional force and the relative velocity of surfaces in the steady state. The model comprises two…
Anisotropy-temperature phase diagram for the two-dimensional dipolar Heisenberg model with and without magnetic field
Hisato Komatsu, Yoshihiko Nonomura, Masamichi Nishino
We investigate phase transitions in the two-dimensional dipolar Heisenberg model with uniaxial anisotropy with a specific ratio between the exchange and dipolar constants, . W…
Temperature-field phase diagram of the two-dimensional dipolar Ising ferromagnet
Hisato Komatsu, Yoshihiko Nonomura, Masamichi Nishino
We study field-induced phase transitions in the two-dimensional dipolar Ising ferromagnet with a specific ratio between the exchange and dipolar constants, , which exhibits a…
A "mean-field approximation" on the phase transitions of three-dimensional Lennard-Jones model
Hisato Komatsu
It is difficult to derive the solid-fluid transition theoretically from microscopic models, although this phenomenon itself has been investigated for a long time. We previously con…
Generalization of exactly-solvable model to exhibit solid-fluid phase transition in crystal structures with two particles in a primitive cell
Hisato Komatsu
In our previous paper [H. K., J.Stat.Mech.(2015) P08020], we investigated an interacting-particle model with infinite-range cosine potentials, and derived the partition function wh…
Solid-fluid transition of two- or three-dimensional systems with infinite-range interaction
Hisato Komatsu
It is difficult to derive the solid--fluid transition from microscopic models. We introduce particle systems whose potentials do not decay with distance and calculate their partiti…
Electronic structure of helicoidal graphene: massless Dirac particles on a curved surface with a screw symmetry
Masataka Watanabe, Hisato Komatsu, Naoto Tsuji +1
Massless Dirac particles on the helicoid are theoretically investigated. With its possible application being helical graphene, we explore how the peculiarities of Dirac particles a…