283 citations · 332 across the 7 of their papers we have counts for
7 papers
On a simple derivation of the very low damping escape rate for classical spins by modifying the method of Kramers
Declan J. Byrne, William T. Coffey, Yuri P. Kalmykov +1
The original perturbative Kramers' method (starting from the phase space coordinates) (Kramers, 1940) of determining the energy-controlled-diffusion equation for Newtonian particle…
Comparison of coupled nonlinear oscillator models for the transient response of power generating stations connected to low inertia systems
Marios Zarifakis, Declan J. Byrne, William T. Coffey +3
Coupled nonlinear oscillators, e.g., Kuramoto models, are commonly used to analyze electrical power systems. The cage model from statistical mechanics has also been used to describ…
Active Damping of Power Oscillations Following Frequency Changes in Low Inertia Power Systems
Marios Zarifakis, William T. Coffey, Yuri P. Kalmykov +3
The absolute requirement to increase the amount of energy generation from renewable sources e.g. predominantly asynchronously connected wind turbines and photovoltaic installations…
Damping dependence of spin-torque effects in thermally assisted magnetization reversal
Y. P. Kalmykov, D. Byrne, W. T. Coffey +3
Thermal fluctuations of nanomagnets driven by spin-polarized currents are treated via the Landau-Lifshitz-Gilbert equation as generalized to include both the random thermal noise f…
Nonlinear ac stationary response and dynamic magnetic hysteresis of quantum uniaxial superparamagnets
Yuri P. Kalmykov, Serguey V. Titov, William T. Coffey
The nonlinear ac stationary response of uniaxial paramagnets and superparamagnets - nanoscale solids or clasters with spin number S ~ 10^0 - 10^4 - in superimposed uniform ac and d…
Reversal time of the magnetization of magnetic nanoparticles at very low damping
William T. Coffey, Yuri P. Kalmykov, Serguey V. Titov
The magnetization reversal time of ferromagnetic nanoparticles is investigated in the very low damping regime. The energy-controlled diffusion equation rooted in a generalization o…