# metadata.dc.description[].value
Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Any: 2014, Tutor: Eduard Vives i Santa-Eulàlia

# metadata.dc.description.abstract[].value
This work presents an introduction to the Barkhausen e ect. First, experimental measurements
of Barkhausen noise detected in a soft iron sample will be exposed and analysed. Two di erent
kinds of simulations of the 2-d Out of Equilibrium Random Field Ising Model (RFIM) at T=0 will
be performed in order to explain this e ect: one with periodic boundary conditions (PBC) and the
other with  xed boundary conditions (FBC). The  rst model represents a spin nucleation dynamics
whereas the second one represents the dynamics of a single domain wall. Results from these two di erent models will be contrasted and discussed in order to understand the nature of this e ect.