RT Dissertation/Thesis
T1 Effect of oxygen vacancies on the structural and transport properties of SrTiO3 thin films: experiments and ab-initio calculations
A1 Iglesias Bernardo, Lucía
K1 Oxide semiconductors/Óxidos semiconductores
K1 Thin films/Películas delgadas
K1 Oxygen vacancies/Vacantes de oxígeno
AB This PhD Thesis studies the effect of oxygen vacancies on the structural and transport properties of SrTiO3 thin films under different degrees of epitaxial strain. The Thesis presents a novel approach combining experiments and ab-initio simulations to investigate and understand the underlying mechanisms that link oxygen vacancies and properties of this material. We determine the formation enthalpy and diffusion coefficient of oxygen vacancies as a function of strain. Moreover, we study by means of  ab-initio calculations the influence of the different octahedral configurations, strain and oxygen vacancies on the ferroelectricity of  the SrTiO3 thin films. Finally, the transport properties of the SrTiO3 thin films are also investigated in detail, discussing the similarities with the phenomenology observed in the famous LaAlO3/SrTiO3 interface.
YR 2019
FD 2019
LK http://hdl.handle.net/10347/20267
UL http://hdl.handle.net/10347/20267
LA eng
DS Minerva
RD 30 abr 2026