Tejada Palacios, JavierRomero-Isart, OriolGonzález Ballestero, CarlosMartínez Lahuerta, Víctor José2018-09-142018-09-142018-01https://hdl.handle.net/2445/124568Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2018, Tutors:: Javier Tejada Palacios, Oriol Romero-Isart, Carlos González BallesteroIn this work we model the oscillations of an elastic body. Our aim is to achieve the phonon spectra of a sphere. Once we achieved this goal we develop different codes in order to see the behavior of phonons' frequencies with the radius. Later on we study numerically the thermal excitation of this phonons system.5 p.application/pdfengcc-by-nc-nd (c) Martínez, 2018http://creativecommons.org/licenses/by-nc-nd/3.0/es/FononsOscil·lacionsTreballs de fi de grauPhononsOscillationsBachelor's thesesinfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/openAccess