Research

Micromagnetics and Nonlinear Magnetization Dynamics

This research activity concerns the analysis and development of analytical and numerical techniques to investigate dynamical magnetization phenomena of technological interest (magnetic storage, ferromagnetic resonance, etc.).

In particular: study of dynamics in uniformly-magnetized particles (magnetization switching process operated by external field, magnetization dynamics under microwave field, dynamics of magnetic multilayers driven by spin-torque phenomena). Analytical and numerical study of spatially quasi-uniform magnetization dynamics in thin-films. Development of micromagnetic numerical codes to investigate the spatially non-uniform dynamics in (sub)micron scale. Analysis of spin-waves instability in ultrathin-films subject to microwave external field. Analytical and numerical study of thermal fluctuations in magnetization dynamics.

Mathematical Models of Hysteresis

This activity concerns development and analysis of the properties of mathematical models of vector magnetic hysteresis by generalization of the classical scalar Preisach model. In particular: vector hysteresis models based on generalized Play hysterons. Identification of vector hysteresis models and comparison with experimental data.

 
Computation of electromagnetic forces in polarized media

This activity concerns the evaluation of deformations and forces in fluids with dielectric and magnetic properties, subject to stationary external fields. In particular: formulation and numerical solution of the coupled electro-mechanical (or magneto-mechanical) problem.