A5053989721- Ferroelectric and Piezoelectric Materials
- ZnO doping and properties
- Electronic and Structural Properties of Oxides
- Semiconductor materials and devices
- Acoustic Wave Resonator Technologies
- Microwave Dielectric Ceramics Synthesis
- Copper-based nanomaterials and applications
- TiO2 Photocatalysis and Solar Cells
- Iron oxide chemistry and applications
- Magnetic properties of thin films
- Gas Sensing Nanomaterials and Sensors
- Bone Tissue Engineering Materials
- Transition Metal Oxide Nanomaterials
- Copper Interconnects and Reliability
- Minerals Flotation and Separation Techniques
- X-ray Diffraction in Crystallography
- Physics of Superconductivity and Magnetism
- Crystallization and Solubility Studies
- Origins and Evolution of Life
- Catalysis and Oxidation Reactions
- Magnetic and transport properties of perovskites and related materials
- Enzyme Structure and Function
- Advanced Photocatalysis Techniques
- Multiferroics and related materials
- Protein Structure and Dynamics
Universidad Católica del Norte
2009-2021
Universidad de Oviedo
2015
Pontificia Universidad Católica de Chile
1994-2005
University of Chile
1999-2004
Universidad de Santiago de Chile
2001
Institute of Mathematical Sciences
1999
Spring magnets based on GdCo multilayers have been prepared to study the nucleation and evolution of interfacial domain walls (iDWs) depending layer composition interlayer coupling. alloy compositions in each were chosen so that their net magnetization aligns either with Gd ($\mathrm{G}{\mathrm{d}}_{35}\mathrm{C}{\mathrm{o}}_{65}$) or $\mathrm{Co}(\mathrm{G}{\mathrm{d}}_{11}\mathrm{C}{\mathrm{o}}_{89})$ sublattices. This condition forces an antiparallel arrangement layers' leads iDWs above...
CuO nanowires were successfully made through a simple wet chemical method at room temperature by immersing on copper sheets in 4 M ammonia solution for days and then subjecting it to heat treatment.Immersion time treatment have an important effect the length, diameter, density of nanostructures.X-ray powder diffraction (XRD) patterns indicated that samples are composed single phase, CuO.Scanning electron microscopy (SEM), transmission (TEM), Raman spectroscopy studies showed wet-treated...
We present and validate a reformulated Akhieser model that takes into account the reduction of thermal conductivity due to impact boundary scattering on phonons lifetime.We consider silicon nanomembranes with mechanical mode frequencies in GHz range as textbook examples nanoresonators.The successfully accounts for measured shortening lifetime.Moreover, is extracted from lifetime modes high-frequency regime, thereby demonstrating Q factor can be used an indication and/or diffusivity resonator.
Raffinate is an aqueous acid phase with low copper content obtained in the solvent extraction (SX). This solution, which drags a significant amount of organic that forms oil-in-water (O/W) emulsion, recycled back to leaching as irrigation solution. In addition, formation emulsions can cause operational problems phase. To solve these problems, this work aimed employ electrocoalescence under AC electrical fields enhance demulsification formed. The main objectives were select most appropriate...
We have successfully synthesised one-dimensional single crystals of monoclinic phase titanium dioxide nanostructures (TiO 2 -B), prepared by a hydrothermal process. Morphological characterization was carried out atomic force and scanning transmission electron microscopy techniques. In order to study the crystalline structure, samples were calcined at 500°C in an air-filled chamber. X-ray diffraction results indicated that as-prepared presented patterns hydrate hydrogen titanate those...
We report on the structural, optical and magnetic properties of iron oxide films that were electrochemically cycled in a LiOH aqueous solution. found electrochromic phenomenon is linked to transformation film morphology; it goes from round-shaped particles platy morphology. Additionally, following phenomena observed: gradual blue shift optical-absorption edge, an increase saturation magnetization appearance new Raman bands. The change these helped us understand coloration mechanism for...
A thorough understanding of the mean-free-path (MFP) distribution energy carriers is crucial to engineer and tune transport properties materials. In this context, a significant body work has investigated phonon electron MFP distribution, however, similar studies magnon have not been carried out so far. work, we used thickness-dependence measurements longitudinal spin Seebeck (LSSE) effect yttrium iron garnet films reconstruct cumulative SSE related effective MFP. By using experimental data...
Few-layer graphene was grown by Chemical Vapor Deposition on a CuO thin film pre-deposited sputtering SiO2/Si substrates using acetylene as the carbon source.After evaporation of metal, lies directly in contact with SiO2 dielectric layer.Raman spectroscopy used to confirm presence single and/or few-layers graphene.This procedure does not requiring any post processing transfer onto substrate or use ultra-high vacuum during synthesis.