Browsing TD-Ciencias by Title
Now showing items 921-940 of 1126
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Spacelike submanifolds, their umbilical properties and applications to gravitational physics.
(2017-10-13)Hasta aproximadamente el siglo dieciocho los científicos eran expertos tanto en los aspectosmatemáticos como en los aspectos físicos de su investigación y de sus descubrimientos.Cabe sostener que muy probablemente estos ... -
Spatio-temporal modelling of high-throughput phenotyping data
(2023-10-13)High throughput phenotyping (HTP) platforms and devices are increasingly used to characterise growthand developmental processes for large sets of plant genotypes. This dissertation is motivated by the needto accurately ... -
Spectral analysis of Dirac operators on bounded domains.
(2022-07-07)This thesis is devoted to the spectral study of two types of perturbation of theDirac operator, which are singular from the point of view of scaling.In the first part of this thesis, we consider the coupling of the Dirac ... -
Spectroscopic analysis of atoms and molecules
(2015-09-11)En esta tesis he estudiado varios aspectos de la respuesta espectroscópica de varios átomos y moléculas a una fuente electromagnética externa. Entender dicha respuesta cuántica tanto nuclear como electrónica es muy complicado, ... -
Spin injection in two-dimensional layered materials and local magnetoresistance side-effects
(2016-04-08)El objetivo principal de esta tesis ha sido estudiar la inyección de espines en el disulfuro de molibdeno (MoS2). Este material es interesante por varias razones: por un lado, es un semiconductor (SC), y por lo tanto ... -
Spin orbitronics in metals
(2015-12-10)El trabajo realizado en esta tesis se centra en el estudio de la inyección,transporte y detección de corrientes puras de espín en metales. Una de lasmaneras para crear y detectar estas corrientes es utilizando electrodos ... -
Spin squeezing, macrorealism and the heisenberg uncertainty principle
(2015-10-09)En paralelo con el desarrollo de un formalismo matemáticobien definido para la teoría cuántica [19, 48, 175], se abrióun debate sobre el sorprendente contraste entre los ¿misteriosos¿fenómenos cuánticos (incompatibilidad ... -
Spin transport in magnetic insulator/heavy metal heterostructures.
(2020-03-11)La espintrónica busca aprovechar además de la carga, el espín del electrón, para generar, transportar y manipular la información de espín, con el objetivo de solucionar problemas de la tecnología actual. Actualmente hay ... -
Spin-and Valley-Dependent Transport in Hybrid System and 2D Dirac Materials.
(2020-12-02)In this thesis, we aim to study the spin- and valley-dependent transport in hybrid system and twodimensionalDirac materials.In the first part, I study some spin-dependent and phase-coherent phenomena in hybrid structures.First, ... -
Spin-dependent and non-adiabatic phenomena related to the electron-phonon interaction in nanostructures with strong relativistic corrections.
(2020-04-03)En esta tesis se estudian fenómenos no adiabáticos y dependientes del espín del electrón relacionados conla interacción electrón-fonón en nanoestructuras con fuertes correcciones relativistas. Se han realizadocálculos de ... -
Spin-orbit proximity in van der Waals heterostructures
(2022-03-04)In this thesis, graphene/transition metal dichalcogenides van der Waals hetero-structures were used to develop a device that combines Hall probes with ferromagnetic electrodes. With it, the spin Hall effect in graphene ... -
Spin-phonon interaction on magnetic adatoms
(2023-02-24)El estudio de átomos individuales magnéticos depositados en superficies, también llamados adátomos, esactualmente foco de un gran interés tanto científico como tecnológico debido a su potencial uso para lacreación de qubits ... -
Spin-related phenomena in magnetic and spin-orbit couppled bose-einstein condensates
(2015-06-08)El condensado de Bose-Einstein (CBE) es uno de los primeros fenómenos predichos por la física cuántica macroscópica. El aspecto más notable de este efecto es la condensación en el espacio de momentos y no en el de coordenadas. ... -
Spin-to-charge conversion in low-symmetry MoTe2/graphene van der Waals heterostructures
(2022-03-14)This Thesis presents an exhaustive study of the spin-to-charge conversion processes that take place in low-symmetry MoTe2/graphene van der Waals heterostructure. While in high-symmetry materials, the spin-to-charge conversion ... -
Spin-to-charge current conversion in systems with spin-orbit coupling
(2019-07-09)This thesis is based on the experimental study of spin-to-charge current conversion (SCC) phenomena that occur in systems with spin-orbit coupling: spin Hall effect (SHE) and anomalous Hall effect (AHE). The main objective ... -
Spin-to-charge current interconversion in highly resistive sputtered bismuth selenide
(2023-11-27)In this thesis, we characterize sputtered BiSe by several SCI techniques. Our first approach is one of the best known techniques, spin pumping. Chapter 4 presents the SCI results in sputtered BiSe by the spin pumping ... -
Stabilization of polymer dispersions by using ionic monomers
(2017-06-12)Surfactants are the necessary evil in the commercial production of waterborne dispersions to stabilize the polymer particles. However, they are deleterious for application properties as their migration reduces gloss, ... -
Stacking and Their Boundaries in Few-layer Graphene: Stability and Electronic Properties in Bi- and Trilayer Graphene.
(2023-02-20)Las observaciones experimentales de grafeno de pocas capas muestran propiedades electrónicas notables. Sin embargo, para mantener estas propiedades, el orden de apilamiento debe mantenerse a lo largo de todos los procesos. ... -
Statistical Modelling for Recurrent Events in Sports Injury Research with Applications to Football InjuryData.
(2024-02-16)Sports injuries stand as undesirable side effects of athletic participation, carrying serious consequencesfor athletes' health, their professional careers, and overall team performance. With the growing availability of ... -
Stereoselective synthesis of secondary and tertiary amines through bronsted base assisted mannich, nitro-mannich and a-amination reactions.
(2018-12-10)The main objective of this Ph. D. Thesis has been the development of new Brønsted base assisted methodologies for the synthesis of enantiomerically enriched secondary and tertiary amines of synthetic utility and with ...