activity
19932023
most citedMetastable lifetimes in a kinetic Ising model: Dependence on field and system size

265 citations · 3k across the 128 of their papers we have counts for

collaborators

128 papers

quant-ph2023★ 10 cited

How to cross an energy barrier at zero Kelvin without tunneling effect

Seiji Miyashita, Bernard Barbara

This paper deals with the broad class of magnetic systems having a single or collective spin with an energy barrier, such as Rare-Earth elements and their compounds, Single Mol…

quant-ph2022★ 3 cited

Strong coupling of a Gd multilevel spin system to an on-chip superconducting resonator

Giovanni Franco-Rivera, Josiah Cochran, Seiji Miyashita +2

We report the realization of a strong coupling between a Gd spin ensemble hosted in a scheelite (CaWO) single crystal and the resonant mode of a coplanar stripline super…

cond-mat.str-el2022

Finite-temperature properties of extended Nagaoka ferromagnetism

Hiroaki Onishi, Seiji Miyashita

We study finite-temperature properties of a Hubbard model including sites of a particle bath which was proposed as a microscopic model to show itinerant ferromagnetism at finite el…

cond-mat.other2022★ 4 cited

Sustaining Rabi oscillations by using a phase-tunable image drive

H. De Raedt, S. Miyashita, K. Michielsen +3

Recent electron spin resonance experiments on CaWO:Gd and on other magnetic impurities have demonstrated that sustained Rabi oscillations can be created by driving a mag…

cond-mat.mtrl-sci2020★ 1 cited

Phase diagram of multi-layer ferromagnet system with dipole-dipole interaction

Taichi Hinokihara, Seiji Miyashita

We investigate various magnetic configurations caused by the dipole-dipole interaction (DDI) in the thin-film magnet with the perpendicular anisotropy under the open boundary condi…

cond-mat.stat-mech2020★ 19 cited

Nontrivial temperature dependence of ferromagnetic resonance frequency for spin reorientation transitions

Masamichi Nishino, Seiji Miyashita

We find unusual temperature dependence of the ferromagnetic resonance (FMR) frequency for the spin-reorientation (SR) transition, in which the easy axis changes dependi…