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Nature of the Dirac gap modulation and surface magnetic interaction in axion antiferromagnetic topological insulator MnBi2Te4A
(Nature, 2020-08-06)
Modification of the gap at the Dirac point (DP) in axion antiferromagnetic topological insulator MnBi2Te4 and its electronic and spin structure have been studied by angle- and spin-resolved photoemission spectroscopy (ARPES) ...
Theory of plasmon-enhanced spectroscopy of molecular excitations: infrared absorption, fluorescence, and Raman scattering.
(2018-12-14)
Esta tesis trata sobre la interacción entre las excitaciones moleculares, los plasmones y la radiación electromagnética, en un amplio abanico de situaciones que incluyen la interacción entre vibraciones moleculares y ...
Theoretical study of the linear and nonlinear optical response of plasmonic tunneling gaps
(2018-09-07)
En esta tesis estudiamos la respuesta óptica de sistemas plasmónicos con gaps nanométricos y subnanométricos. Nos concentramos en tres factores que influyen en dicha respuesta. El cambio en la respuesta óptica debido a la ...
Collective dynamics of glass-forming polymers at intermediate length scales: a synergetic combination of neutron scattering, atomistic simulations and theoretical modelling
(EDP Sciences, 2015)
Motivated by the proposition of a new theoretical ansatz [V.N. Novikov, K.S. Schweizer, A.P. Sokolov, J. Chem. Phys. 138, 164508 ( 2013)], we have revisited the question of the characterization of the collective response ...
Enhancing resolution, efficiency, and understanding in IR and THz near-field microscopy
(2018-11-28)
La microscopía óptica de dispersión de campo cercano (s-SNOM) y la espectroscopía de infrarrojo por trsnformada de Fourier (nano-FTIR) resuelta a escala nanométrica son técnicas de caracterización bien establecidas y fiables ...
Relativistic force between fast electrons and planar targets
(IOP Publishing, 2014-07-30)
The full retarded electromagnetic force experienced by swift electrons moving parallel to planar boundaries is revisited, for both metallic and dielectric targets, with special emphasis on the consequences in electron ...
Hydrogen and lithium under high pressure.
(2018-07-06)
In this thesis we present a first-principles analysis of the electronic, vibrational and superconducting properties of solid hydrogen and lithium under high pressure based on density functional theory (DFT). The main goal ...
Half-Hedgehog Spin Textures in sub-100 nm Soft Magnetic Nanodots
(Royal Society Of Chemistry, 2020-09-28)
Topologically non-trivial structures such as magnetic skyrmions are nanometric spin textures of outstanding potential for spintronic applications due to their unique features. It is well known that Neel skyrmions of definite ...
Injection, transport and manipulation of pure spin currents in metallic lateral spin valves
(2014-12-15)
El trabajo realizado en esta tesis se basa en el uso de válvulas de espín laterales (LSV de las siglas en inglés), las cuales consisten de dos electrodos ferromagnéticos (FM) conectados por un canal no magnético (NM), para ...
Synthesis of macrocyclic poly(ethylene oxide)s containing a protected thiol group: a strategy for decorating gold surfaces with ring polymers
(Royal Society of Chemistry, 2019-12-21)
We introduce an approach to synthesize macrocyclic poly(ethylene oxide)s containing a pendant protected thiol group (pSH-CPEO), which is demonstrated to be able to attach to gold surfaces without prior deprotection. Our ...