ASEVA is a non-profit organization founded on 1963 as a specialised working group of the Spanish Committee of the International Union of Pure and Applied Physics (IUPAP). Currently, ASEVA is a member of the IUVSTA (International Union for Vacuum Science, Technique and Applications), where it participates actively.
Highligted Scientific Contributions from Our Members:
Mimicking the Martian Hydrological Cycle: A Set-Up to Introduce Liquid Water in Vacuum
Liquid water is well known as the life ingredient as a solvent. However, so far, it has only been found in liquid state on this planetary surface. The aim of this experiment and technological development was to test if a moss sample is capable of survivin….
Multilayer passive radiative selective cooling coating based on Al/SiO2/SiNx/SiO2/TiO2/SiO2 prepared by dc magnetron sputtering
A multilayer passive radiative selective cooling coating based on Al/SiO2/SiNx/SiO2/TiO2/SiO2 prepared by dc magnetron sputtering is presented. The design was first theoretically optimized using the optical constants...
Gas-phase kinetics of CH3CHO with OH radicals between 11.7 and 177.5 K
Gas-phase reactions in the interstellar medium (ISM) are a source of molecules in this environment. The knowledge of the rate coefficient for neutral–neutral reactions as a function of temperature, k(T), is essential to improve...
Chemistry and Electrocatalytic Activity of Nanostructured Nickel Electrodes for Water Electrolysis
Herein we have developed nanostructured nickel-based electrode films for anion exchange membrane water electrolysis (AEMWE). The electrodes were prepared by magnetron sputtering (MS) in an oblique angle configuration...
Boron synergies in lithium film performance
Fusion experiments use lithium and boron getters to capture impurities and control the density of fuel species in the plasma. In the TJ-II Stellarator, the addition of a boron-carbon substrate was found to extend the lifetime of the very reactive lithium wall conditioning….
Surface specificity and mechanistic pathway of de-fluorination of C60F48 on coinage metals
Movie showing MD simulations of C60F48 defluorination over a Ni surface using ReaxFF reactive force field. The simulations were performed at CESGA Centro de Supercomputación de Galicia and published in Nanoscale Advances in 2020
Large Dzyaloshinskii-Moriya interaction induced by chemisorbed oxygen on a ferromagnet surface
Author: Gong Chen, Arantzazu Mascaraque, Hongying Jia, Bernd Zimmermann, MacCallum Robertson, Roberto Lo Conte, Markus Hoffmann, Miguel Angel González Barrio, Haifeng Ding, Roland Wiesendanger, Enrique G. Michel, Stefan Blügel, Andreas K. Schmid, Kai Liu
The Dzyaloshinskii-Moriya interaction (DMI) is an antisymmetric exchange interaction that stabilizes chiral spin textures. It is induced by inversion symmetry breaking in noncentrosymmetric lattices or at interfaces….
High-temperature solar-selective coatings based on Cr(Al)N. Part 2: Design, spectral properties and thermal stability of multilayer stacks
Author: T. C. Rojas, A. Caro, R. Escobar-Galindo, J. C. Sánchez-López.
Two multilayer solar selective absorber coatings [Al/CrN0.95/Cr0.96Al0.04N1.08/Cr0.53Al0.47N1.12/Al2O3 (stack #1) and Cr0.96Al0.04N0.89/Cr0.62Al0.38N1.00/Cr0.53Al0.47N1.12/Al2O3 (stack #2)] were….
Fluorescent bicolour sensor for low-background neutrinoless double β decay experiments
Author: Iván Rivilla, Borja Aparicio, Juan M. Bueno, David Casanova, Claire Tonnelé, Zoraida Freixa, Pablo Herrero, Celia Rogero, José I. Miranda, Rosa M. Martínez-Ojeda, Francesc Monrabal, Beñat Olave, Thomas Schäfer, Pablo Artal, David Nygren, Fernando P. Cossío & Juan J. Gómez-Cadenas
Observation of the neutrinoless double β decay is the only practical way to establish that neutrinos are their own antiparticles1. Because of the small masses of neutrinos, the lifetime of neutrinoless double β decay is expected to be at least ten orders of magnitude….
Generation and Imaging of Magnetoacoustic Waves over Millimeter Distances
Author: Blai Casals, Nahuel Statuto, Michael Foerster, Alberto Hernández-Mínguez, Rafael Cichelero, Peter Manshausen, Ania Mandziak, Lucía Aballe, Joan Manel Hernàndez, and Ferran Macià
Using hybrid piezoelectric-magnetic systems we have generated large amplitude magnetization waves mediated by magnetoelasticity with up to 25 degrees variation in the magnetization orientation. We present direct imaging and quantification of both standing...