RT Dissertation/Thesis
T1 Thermal conductivity of superlattices and ferroelectric thin films. Effect of boundary sizes and vacancies
A1 Bugallo Ferrón, David
K1 Conductividad térmica
K1 capas finas
K1 ferroeléctricos
K1 superredes
K1 física estado sólido
K1 óxidos
AB Thermal transport in solids has recently seen great advances. This thesisfocuses on thermal transport in two different interesting cases: superlattices and ferroelectric thin films.Thermal conductivity of superlattices of SrTiO3/LaCoO3 show a non-trivial change upon modification of thethickness of the repetition unit. It is shown how coherent and incoherent phonons shape this dependence and howthey are affected by the structure of the superlattices.On the other hand, ferroelectric thin films of BaTiO3 and PbTiO3 with different cationic concentrations wereinvestigated. It is proven that ferroelectric domain walls hinder thermal transport in both materials, as well ascationic defects.
YR 2021
FD 2021
LK http://hdl.handle.net/10347/26931
UL http://hdl.handle.net/10347/26931
LA eng
DS Minerva
RD 24 abr 2026