Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/103311
Title: Nanoparticles magnetization switching by Surface Acoustic Waves
Author: Tena Vidal, Júlia
Director: Tejada Palacios, Javier
Keywords: Nanopartícules
Ones acústiques de superfície
Tesis
Nanoparticles
Acoustic surface waves
Theses
Issue Date: Jun-2016
Abstract: In this project we present a simulation which allows the prediction of the spin-phonon interaction in magnetic nanoparticle samples. The study of new techniques to manipulate the magnetic moment of nanostructures are being increasingly demanded [1{5]. For this purpose, surface acoustic waves (SAWs) are excellent candidates since they offer a dynamic and tuneable mechanism for the control of low energy excitations. The goal of the project is to better understand the mechanism of magnetization switching produced by SAWs, developing a numerical solution of the theoretical model previously proposed by Professor Eugene M. Chudnovsky [6]. We have developed our theoretical calculations used to predict the magnetization jump dependency on different parameters such as system temperature, SAWs power and frequency and sample magnetic properties. Some of these dependencies have been experimentally verified using a Superconducting Quantum Interference Device magnetometer (SQUID) at the Laboratory of Magnetism and Superconductivity of the University of Barcelona
Note: Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2016, Tutor: Javier Tejada Palacios
URI: http://hdl.handle.net/2445/103311
Appears in Collections:Treballs Finals de Grau (TFG) - Física

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