60 citations · 332 across the 16 of their papers we have counts for
17 papers
Gauge theory applied to magnetic lattices
A. Di Pietro, P. Ansalone, V. Basso +2
Micromagnetic exchange is usually derived by performing the continuum limit of the Heisenberg model on a cubic lattice, where the exchange integrals are assumed to be identical for…
Bloch-to-Néel domain wall transition evinced through morphology of magnetic bubble expansion in Ta/CoFeB/MgO layers
Arianna Casiraghi, Alessandro Magni, Liza Herrera Diez +5
Ta/CoFeB/MgO trilayers with perpendicular magnetic anisotropy are often characterised by vanishing or modest values of interfacial Dzyaloshinskii-Moriya interaction (DMI), which re…
Non-equilibrium thermodynamics of the longitudinal spin Seebeck effect
Vittorio Basso, Elena Ferraro, Alessandro Magni +3
In this paper we employ non equilibrium thermodynamics of fluxes and forces to describe magnetization and heat transport. By the theory we are able to identify the thermodynamic dr…
Non-equilibrium thermodynamics of the spin Seebeck and spin Peltier effects
Vittorio Basso, Elena Ferraro, Alessandro Magni +3
We study the problem of magnetization and heat currents and their associated thermodynamic forces in a magnetic system by focusing on the magnetization transport in ferromagnetic i…
Thermodynamics of the heat currents in the longitudinal spin Seebeck and spin Peltier effects
Vittorio Basso, Elena Ferraro, Alessandro Magni +3
We employ the non-equilibrium thermodynamics of currents and forces to describe the heat transport caused by a spin current in a Pt/YIG bilayer. By starting from the constitutive e…
Magneto-optical imaging technique for hostile environment: the ghost imaging approach
A. Meda, A. Caprile, A. Avella +4
We develop a new approach in magneto-optical imaging (MOI), applying for the first time a ghost imaging (GI) protocol to perform Faraday microscopy. MOI is of the utmost importance…
Dynamic hysteresis in Finemet thin films
L. Santi, R. L. Sommer, A. Magni +3
We performed a series of dynamic hysteresis measurements on three series of Finemet films with composition FeCuNbSiB, using both the longitudinal magnet…
Investigation of scaling properties of hysteresis in Finemet thin films
L Santi, L. S. Dorneles, R. L. Sommer +4
We study the behavior of hysteresis loops in Finemet FeCuNbSiB thin films by using a fluxometric setup based on a couple of well compensated pickup co…
Is demagnetization an efficient optimization method?
S. Zapperi, F. Colaiori, L. Dante +4
Demagnetization, commonly employed to study ferromagnets, has been proposed as the basis for an optimization tool, a method to find the ground state of a disordered system. Here we…
Ground state optimization and hysteretic demagnetization: the random-field Ising model
Mikko J. Alava, Vittorio Basso, Francesca Colaiori +4
We compare the ground state of the random-field Ising model with Gaussian distributed random fields, with its non-equilibrium hysteretic counterpart, the demagnetized state. This i…
Phase transitions in a disordered system in and out of equilibrium
F. Colaiori, M. J. Alava, G. Durin +2
The equilibrium and non--equilibrium disorder induced phase transitions are compared in the random-field Ising model (RFIM). We identify in the demagnetized state (DS) the correct…
Microscopic foundations of the Rayleigh law of hysteresis
Stefano Zapperi, Alessandro Magni, Gianfranco Durin
The hysteresis properties of ferromagnetic materials at low field are described by the Rayleigh law. We analyze the problem in light of modern statistical mechanics models of hyste…
Low field hysteresis in disordered ferromagnets
Lorenzo Dante, Gianfranco Durin, Alessandro Magni +1
We analyze low field hysteresis close to the demagnetized state in disordered ferromagnets using the zero temperature random-field Ising model. We solve the demagnetization process…
Dipolar random field Ising model: an application to garnet films
Alessandro Magni, Gabor Vertesy
The dipolar-random field Ising model (DRFIM) recently introduced displays a behaviour that can be connected to the magnetization of bidimensional magnetic media. Epitaxial magnetic…
Hysteresis properties at zero temperature in the Dipolar-Random Field Ising Model
Alessandro Magni
We present a modified two-dimensional random field Ising model, where a dipolar interaction term is added to the classic random field Hamiltonian. In a similar model it was already…
Functional Integration Approach to Hysteresis
G. Bertotti, I. D. Mayergoyz, V. Basso +1
A general formulation of scalar hysteresis is proposed. This formulation is based on two steps. First, a generating function g(x) is associated with an individual system, and a hys…
Stochastic Dynamics in Quenched-in Disorder and Hysteresis
Giorgio Bertotti, Vittorio Basso, Alessandro Magni
The conditions under which relaxation dynamics in the presence of quenched-in disorder lead to rate-independent hysteresis are discussed. The calculation of average hysteresis bran…