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Title: The Barkhausen Effect
Author: Navas Portella, Víctor
Director/Tutor: Vives i Santa-Eulàlia, Eduard
Keywords: Inducció magnètica
Materials ferromagnètics
Treballs de fi de grau
Magnetic induction
Ferromagnetic materials
Bachelor's thesis
Issue Date: Jun-2014
Abstract: 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.
Note: Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Any: 2014, Tutor: Eduard Vives i Santa-Eulàlia
Appears in Collections:Treballs Finals de Grau (TFG) - Física

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