81 citations · 204 across the 12 of their papers we have counts for
6 papers · 1 filter
Stochastic model for quantum spin dynamics in magnetic nanostructures
O. Morandi
We develop a numerical model that reproduces the thermal equilibrium and the spin transfer mechanisms in magnetic nanomaterials. We analyze the coherent two-particle spin exchange…
Quantum atomistic approach for interacting spins
O. Morandi
The phenomenological Landau theory of the spin precession has been used to reproduce the out-of-equilibrium properties of many magnetic systems. However, such an approach suffers f…
Study of the ultrafast dynamics of ferromagnetic materials with a Quantum Monte Carlo atomistic model
O. Morandi, P. -A. Hervieux
We study of the ultrafast dynamics of the atomic angular momentum in ferrimagnets irradiated by laser pulses. My apply a quantum atomistic spin approach based on the Monte Carlo te…
Wigner model for quantum transport in graphene
O. Morandi, F. Schuerrer
The single graphene layer is a novel material consisting of a flat monolayer of carbon atoms packed in a two-dimensional honeycomb-lattice, in which the electron dynamics is govern…
Ultrafast Magnetization Dynamics in Diluted Magnetic Semiconductors
O. Morandi, P. -A. Hervieux, G. Manfredi
We present a dynamical model that successfully explains the observed time evolution of the magnetization in diluted magnetic semiconductor quantum wells after weak laser excitation…
A multiband envelope function model for quantum transport in a tunneling diode
Omar Morandi, Michele Modugno
We present a simple model for electron transport in semiconductor devices that exhibit tunneling between the conduction and valence bands. The model is derived within the usual Blo…