145 citations · 189 across the 10 of their papers we have counts for
10 papers
Massively parallel symplectic algorithm for coupled magnetic spin dynamics and molecular dynamics
J. Tranchida, S. J. Plimpton, P. Thibaudeau +1
A parallel implementation of coupled spin-lattice dynamics in the LAMMPS molecular dynamics package is presented. The equations of motion for both spin only and coupled spin-lattic…
Finite-dimensional colored fluctuation-dissipation theorem for spin systems
Stam Nicolis, Pascal Thibaudeau, Julien Tranchida
When nano-magnets are coupled to random external sources, their magnetization becomes a random variable, whose properties are defined by an induced probability density, that can be…
Probing the hue of the stochastic magnetization dynamics
Stam Nicolis, Julien Tranchida, Pascal Thibaudeau
The Fokker--Planck equation describes the evolution of a probability distribution towards equilibrium--the flow parameter is the equilibration time. Assuming the distribution remai…
A functional calculus for the magnetization dynamics
Julien Tranchida, Pascal Thibaudeau, Stam Nicolis
A functional calculus approach is applied to the derivation of evolution equations for the moments of the magnetization dynamics of systems subject to stochastic fields. It allows…
Colored-noise magnetization dynamics: from weakly to strongly correlated noise
Julien Tranchida, Pascal Thibaudeau, Stam Nicolis
Statistical averaging theorems allow us to derive a set of equations for the averaged magnetization dynamics in the presence of colored (non-Markovian) noise. The non-Markovian cha…
Non-Markovian magnetization dynamics for uniaxial nanomagnets
Pascal Thibaudeau, Julien Tranchida, Stam Nicolis
A stochastic approach for the description of the time evolution of the magnetization of nanomagnets is proposed, that interpolates between the Landau-Lifshitz-Gilbert and the Landa…
Frequency-dependent effective permeability tensor of unsaturated polycrystalline ferrites
Pascal Thibaudeau, Julien Tranchida
Frequency-dependent permeability tensor for unsaturated polycrystalline ferrites is derived through an effective medium approximation that combines both domain-wall motion and rota…
Closing the hierarchy for non-Markovian magnetization dynamics
Julien Tranchida, Pascal Thibaudeau, Stam Nicolis
We propose a stochastic approach for the description of the time evolution of the magnetization of nanomagnets, that interpolates between the Landau--Lifshitz--Gilbert and the Land…
Quantum Magnets and Matrix Lorenz Systems
Julien Tranchida, Pascal Thibaudeau, Stam Nicolis
The Landau--Lifshitz--Gilbert equations for the evolution of the magnetization, in presence of an external torque, can be cast in the form of the Lorenz equations and, thus, can de…
Knotted Strange Attractors and Matrix Lorenz Systems
J. Tranchida, P. Thibaudeau, S. Nicolis
A generalization of the Lorenz equations is proposed where the variables take values in a Lie algebra. The finite dimensionality of the representation encodes the quantum fluctuati…