Examinar por departamento (eus.) "Materia kondentsatuaren fisika"
Now showing items 21-40 of 57
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Infrared spectral emissivity studies on metals and materials for solar thermal power plants
(2016-09-12)Dentro del marco industrial mundial y del País Vasco en particular el sector metalúrgico ha tenido y tiene un peso muy importante. En muchos de los materiales utilizados es vital conocer las pérdidas de calor por radiación, ... -
Investigation of Mg-Zn-Al metal alloys as new PCMs for latent heat energy storage applications
(2016-12-19)The main objective of this thesis is to investigate metal alloys as phase change material (PCM) for thermal energy storage (TES) applications. In particular, This work consists to analyze and characterize a set of binary ... -
KIMERA: A Kinetic Montecarlo Code for Mineral Dissolution
(MDPI, 2020-09-18)KIMERA is a scientific tool for the study of mineral dissolution. It implements a reversible Kinetic Monte Carlo (KMC) method to study the time evolution of a dissolving system, obtaining the dissolution rate and information ... -
Large magnetoelectric coupling in multiferroic oxide heterostructures assembled via epitaxial lift-off
(Nature, 2020-06-24)Epitaxial films may be released from growth substrates and transferred to structurally and chemically incompatible substrates, but epitaxial films of transition metal perovskite oxides have not been transferred to electroactive ... -
Long-living carriers in a strong electron-phonon interacting two-dimensional doped semiconductor
(Nature Publishing Group, 2019-07-15)Carrier doping by the electric field effect has emerged as an ideal route for monitoring many-body physics in two-dimensional materials where the Fermi level is tuned so that the strength of the interactions can also be ... -
Magneto-optical characterization of magnetic thin films and interface structures
(2019-07-15)Por medio de técnicas experimentales entre las que destacan el efecto Kerr magneto-óptico (MOKE) y una extensión del mismo, la elipsometría magneto-óptica generalizada (GME), investigo fenómenos relacionados con el magnetismo ... -
Ni–Ti-Hf High-Temperature Shape Memory Alloy: Measure of the Clausius-Clapeyron Coefficient Through Mechanical Spectroscopy
(Elsevier, 2021-03-05)The martensitic transformation of Ni49.5Ti35.5Hf15 high temperature shape memory alloy is characterized by internal friction measurements. The temperatures for the reversible B2 <-> B19' transformation appear in the range ... -
On a Common Mistake in the Description of the Photoelectric Effect
(AIP, 2019-11-01)The photoelectric effect is one of the key experiments taught during first- or second-year university and high school modern physics courses. It is usually the first experiment to introduce light quantization and the concept ... -
Optical properties of metals: Infrared emissivity in the anomalous skin effect spectral region
(American Institute of Physics, 2014-09-07)When the penetration depth of an electromagnetic wave in a metal is similar to the mean free path of the conduction electrons, the Drude classical theory is no longer satisfied and the skin effect becomes anomalous. Physical ... -
Optimized sample addressing in prism-coupled surface plasmon resonance experiments
(Elsevier, 2020-04-09)In this work we study the walk-off of the beam from the interrogation spot during rotation in surface plasmon resonance experiments using prism-based coupling such as the widespread Kretschmann configuration. The impossibility ... -
Position-dependent exact-exchange energy for slabs and semi-infinite jellium
(American Physical Society, 2009-12)The position-dependent exact-exchange energy per particle epsilon(x)(z) (defined as the interaction between a given electron at z and its exact-exchange hole) at metal surfaces is investigated, by using either jellium slabs ... -
Reversible and Non-Reversible Transformation of Magnetic Structure in Amorphous Microwires
(MDPI, 2020-07-24)We provide an overview of the tools directed to reversible and irreversible transformations of the magnetic structure of glass-covered microwires. The irreversible tools are the selection of the chemical composition, ... -
Role of occupied d bands in the dynamics of excited electrons and holes in Ag
(American Physical Society, 2003)The role that occupied d bands play in the inelastic lifetime of bulk and surface states in Ag is investigated from the knowledge of the quasiparticle self-energy. In the case of bulk electrons, sp bands are taken to be ... -
Role of occupied d states in the relaxation of hot electrons in Au
(American Physical Society, 2000-07-15)We present first-principles calculations of electron-electron scattering rates of low-energy electrons in Au. Our full band-structure calculations indicate that a major contribution from occupied d states participating in ... -
Simetría magnética aplicada al estudio de materiales magnéticos: nuevos programas del Bilbao Crystallographic Server
(2017-12-01)En esta tesis doctoral ha consistido en un estudio de la simetría magnética y de los grupos espaciales y superespaciales magnéticos desde un punto de vista práctico, orientado al desarrollo de herramientas teóricas que ... -
Sistema de compensación simplificado del desvío semicircular para bitácora con compás de clase 'A'
(2016-03-18)Nuevo sistema de compensación para agujas náuticas tipo 'A' destinado a sustituir al convencional constituido por: barra Flinders, esferas, imán de escora e imanes correctores longitudinales y transversales. Debido a que ... -
Spectral and optical properties of Ag3Au(Se2,Te2) and dark matterdetection
(IOP, 2020-01-01)Paper • The following article is Open access Spectral and optical properties of Ag3Au(Se2,Te2) and dark matter detection M-Á Sánchez-Martínez6,1 , I Robredo6,2,3, A Bidaurrazaga3, A Bergara2,3,4, F de Juan2,5, A G ... -
Spectral emissivity of copper and nickel in the mid-infrared range between 250 and 900 ºC
(Elsevier, 2014-01-15)A study on the radiative properties of two pure metals, copper and nickel, using a high accuracy radiometer is carried out. Their spectral emissivity between 3 and 21 μm and its dependence on emission angle and temperature ... -
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-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 ...