Persona: Sanz, Ruy
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Instituto Nacional de Técnica Aeroespacial
El Instituto Nacional de Técnica Aeroespacial es el Organismo Público de Investigación (OPI) dependiente del Ministerio de Defensa. Además de realizar actividades de investigación científica y de desarrollo de sistemas y prototipos en su ámbito de conocimiento, presta servicios tecnológicos a empresas, universidades e instituciones.
El INTA está especializado en la investigación y el desarrollo tecnológico, de carácter dual, en los ámbitos de la Aeronáutica, Espacio, Hidrodinámica, Seguridad y Defensa.
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Sanz
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Publicación Restringido Diseño y Caracterización de Materiales Novedosos con Funcionalidades Electromagnéticas Avanzadas para Aplicaciones Aeroespaciales, de Movilidad Eléctrica y Comunicaciones 5G (NOMA-EM)(INSTITUTO TECNOLÓGICO DE ARAGÓN, 2025-11) Plaza Gallardo, Borja; Poyatos Martinez, David; Sanz, Ruy; Gimenez, Enrique; Torres País, José; Suarez, AdrianEl cometido de esta comunicación es presentar los objetivos, la estructura, la metodología de trabajo y la gestión del Proyecto NOMA-EM (PID2024-159232OB-C31) financiado por el Ministerio de Ciencia, Innovación y Universidades (MICIU). El proyecto NOMA-EM tiene como objetivo el desarrollo de nuevos materiales con propiedades relevantes en presencia de campos electromagnéticos (EM) y nuevos métodos para la caracterización EM de los materiales desarrollados, la integración de estos materiales en estructuras complejas y la generación de conocimiento para aplicaciones espaciales y aeronáuticas finales, sin dejar de lado su aplicación en otros sectores como el vehículo eléctrico y las comunicaciones 5G. El proyecto busca impulsar y generar nuevos conocimientos en el diseño y la síntesis escalable de metamateriales EM funcionales. Mediante la selección y el control precisos de componentes, nanoestructuras y procesos de síntesis (MXenes, aerogeles y nanoestructuras anódicas), se logra un control sin precedentes sobre las propiedades EM de estos materiales. Esto permite modificar el comportamiento del material en función de aplicaciones específicas, partiendo de una base común. Como vínculo esencial entre la aplicación final y el material base, es crucial desarrollar o modificar los métodos de caracterización existentes. Los nuevos materiales desarrollados en el proyecto presentan desafíos para la caracterización electromagnética, lo que requiere medidas y análisis precisos de sus propiedades únicas. Además, la diversidad de aplicaciones finales exige considerar diferentes escenarios, incluyendo amplios rangos de frecuencia y entornos extremos como temperaturas criogénicas y condiciones de vacío espacial. La propuesta presenta un enfoque multidisciplinar, que combina la investigación básica en ciencia de materiales con la aplicación de estos nuevos materiales en sectores estratégicos como el aeroespacial, la automoción o las comunicaciones 5G, donde los nuevos sistemas y plataformas se componen de un número cada vez mayor de sistemas electrónicos complejos que utilizan campos EM.Publicación Restringido Temperature Dependent Magnetization and Remanent Magnetization in Pseudo-Binary x (Fe2TiO4)-(1-x)(Fe3O4) (0.30 < x < 1.00) Titanomagnetites(Institute of Electrical and Electronics Engineers, 2011-09-26) Sanz, Ruy; Cerdán, M. F.; Wise, A.; Díaz Michelena, MarinaIn this work we present preliminary results on magnetization and remanence of synthetic pseudo-binary x(Fe 2 TiO 4 )-(1-x)(Fe 3 O 4 )(0.30 <; x <; 1.00). Magnetic characterization was performed at temperature ranges from 100 K up to 400 K. The final objective is to characterize the magnetic response as a function of temperature in order to foresight the future magnetic measurements of the magnetometer included into Met-Net mission to Mars. Samples present ferromagnetic behavior with Néel temperatures above the minimum Martian temperature. An increased remanence for sample with x=0.65 has been measured possibly originated by pinning mechanism which might offer a partial explanation as to the crustal magnetism of Mars.Publicación Acceso Abierto Mars MOURA magnetometer demonstration for high-resolution mapping on terrestrial analogues(European Geoscience Union (EGU), 2016-05-19) Díaz Michelena, Marina; Kilian, R.; Sanz, Ruy; Ríos, F.; Baeza, O.; Ministerio de Economía y Competitividad (MINECO)Satellite-based magnetic measurements of Mars indicate complex and very strong magnetic anomalies, which led to an intensive and long-lasting discussion about their possible origin. To make some progress in the investigation of the origin of these anomalies the MOURA vector magnetometer was developed for in situ measurements on Mars. In this work we propose the utilisation of such an instrument for future planetary on-ground surveys. The proof of its suitability is seen through testing it on various terrestrial analogues characterised by the distinct magnetic anomalies of their basement rocks: (1) a magnetite body of EL Laco (up to +110 000 nT) and its transition to surrounding andesites ( < +2000 nT) in the northern Andes of Chile showing the highest local magnetic anomalies. The magnetite-bearing ore body has highly variable local anomalies due to its complex formation history where a significant dispersion in palaeo-orientations has been previously reported, while our vector data show relatively uniform and probably induced declinations. (2) A basaltic spatter cone of the Pali Aike volcanic field, in southern Chile, was characterised by very strong magnetic anomalies along the crater rim (up to +12 000 nT), controlled by the amount of single domain magnetites in the ground mass of the basalts. Due to their strong remanent signature, palaeo-declinations of the lavas and reorientations of collapsed blocks could be constrained by the vector data. (3) The Monturaqui meteorite crater (350 m diameter), in northern Chile, shows significant variations of its anomalies (from −2000 to > +6000 nT) in restricted areas of several square metres along its crater rim related to unexposed iron-bearing fragments of the impactor while its granitic and ignimbritic target rocks exhibit only very weak anomalies. (4) An area with several amphibolitic dykes, which cross-cut a Cretaceous granitoid in the southernmost Andes, where a decimetre-scale mapping was performed. In this case, pyrrhotite is the only magnetic carrier. It was formed during hydrothermal processes within the dykes. Very low (+40 to +120 nT) positive magnetic anomalies clearly depict the amount of 1–4 vol % pyrrhotite in these dykes, which is important as a mineralogical indicator as well as to detect associated gold and copper enrichment.Publicación Restringido Nanostructured metamaterials for the thermal and electromagnetic isolation of cryostats(SPIE, 2024-08-26) Vivas, Laura G.; Ramos Somolinos, David; Martín-Rubio, Carolina; Rivelles García, Alejandro; Madueño Custodio, Laura; Ruiz Clavijo, Alejandra ; Díaz, Alberto; Schneider, Marc; Plaza Gallardo, Borja; Poyatos Martinez, David; del Hoyo Gordillo, Juan Carlos; Caballero Calero, Olga; Worgull, M.; Martín Iglesias, Santiago; Martín Vodopivec, B.; Maicas, M.; Navas, David; Martín González, Marisol ; Sanz, RuyIn terms of thermal and electromagnetic isolation properties, Nanostructured Metamaterials may present important advantages compared to current employed materials. In this work, we present the synthesis routes and the preliminary characterization results of some metamaterials based on Poly-ether-ether-ketone and nanostructured anodic oxides, with low thermal conductivity, combined with Au nanocolumns and three-dimensional nanonetworks. The results reveals proper magnetic and electromagnetic properties and suggest their suitable use under vacuum and cryogenic conditions.Publicación Acceso Abierto MOURA magnetometer for Mars MetNet Precursor Mission. Its potential for an in situ magnetic environment and surface characterization(Universidad Complutense de Madrid, 2016-10-14) Díaz Michelena, Marina; Sanz, Ruy; Belén Fernández, A.; De Manuel, V.; Cerdán, M. F.; Apéstigue, Víctor; Domínguez, J. A.; González, Miguel; Guerrero, H.; Dolores Sabau, M.; Kilian, R.; Baeza, O.; Ríos, F.; Herraiz, M.; Vázquez, L.; Tordesillas, J. M.; Covisa, P.; Aguado, J.; Ministerio de Economía y Competitividad (MINECO)El magnetómetro y gradiómetro MOURA forma parte de la instrumentación científica de la misión precursora de MetNet a Marte. En este trabajo se describen los objetivos de esta investigación, se recopilan las tareas de diseño y desarrollo del mismo así como su posterior calibración y se muestran las principales acciones de demostración emprendidas con el instrumento que muestran su capacidad para medidas magnéticas a bordo de aterrizadores y rovers. MOURA magnetometer and gradiometer is part of the scientific instrumentation for Mars MetNet Precursor mission. This work describes the objective of the investigation, summarizes the work done in the design and development of the sensor as well as its calibration, and shows the demonstration campaigns to show the potential of such instrument for planetary landers and roversPublicación Acceso Abierto Calibration of QM-MOURA three-axis magnetometer and gradiometer(European Geoscience Union (EGU), 2015-01-30) Díaz Michelena, Marina; Sanz, Ruy; Cerdán, M. F.; Fernández, A. B.; Ministerio de Economía y Competitividad (MINECO)MOURA instrument is a three-axis magnetometer and gradiometer designed and developed for Mars MetNet Precursor mission. The initial scientific goal of the instrument is to measure the local magnetic field in the surroundings of the lander i.e. to characterize the magnetic environment generated by the remanent magnetization of the crust and the superimposed daily variations of the field produced either by the solar wind incidence or by the thermomagnetic variations. Therefore, the qualification model (QM) will be tested in representative scenarios like magnetic surveys on terrestrial analogues of Mars and monitoring solar events, with the aim to achieve some experience prior to the arrival to Mars. In this work, we present a practical first approach for calibration of the instrument in the laboratory; a finer correction after the comparison of MOURA data with those of a reference magnetometer located in San Pablo de los Montes (SPT) INTERMAGNET Observatory; and a comparative recording of a geomagnetic storm as a demonstration of the compliance of the instrument capabilities with the scientific objectives.Publicación Restringido Asymmetric magnetic response induced by compositional gradients in Ni-Fe nanowires(IEEE Nanotechnology Council (NTC), 2024-07-09) Fernández González, Claudia; Gómez Cruz, Lucía; Álvaro Gómez, Laura; Berja, Alba; Martín-Rubio, Carolina; Waqas Khaliq, M.; Foerster, Michael; Niño, M. Ángel; Mascaraque, Arantzazu; Sanz, Ruy; Aballe, Lucía; Pérez, Lucas; Ruiz Gómez, Sandra"The control over the domain wall motion in cylindrical nanostructures is a key factor for developing the next generation of spintronic and logic devices [1,2]. Among several strategies, introducing changes in the chemical structure of the wire (chemical barriers) has been proved to be an effective way to pin the domain walls [3], but determining the direction of the domain wall movement still remains as an open challenge. Following the same approach, in this work we introduced gradients of composition in Ni-Fe nanowires to pattern a ratchet profile of the domain wall energy along the nanowire axis, in order to create an asymmetry for the domain wall movement. Nanowires were synthesized using template assisted electrodeposition. Composition was gradually changed between Ni90Fe10 to Ni35Fe65 along the nanowire longitudinal axis in periods of a few micrometres (fig.1.a). Combining laterally resolved X-ray Absorption Spectro-microscopy (XAS) and X-ray Magnetic Circular Dichroism (XMCD) we correlate the chemical structure of single nanowires with their 3D spin texture. By applying external magnetic fields along the nanowire axis, we studied the evolution of the magnetic state depending on the field direction. In addition, First Order Reversal Curves (FORC) were also measured in arrays of nanowires. The FORC diagrams of nanowires with homogeneous composition and nanowires with axial gradients of composition are shown in fig.1.b-c. While the diagram of homogeneous nanowires is highly symmetric with respect to the interaction field axis (HU)(b), an asymmetry arises in the diagram of nanowires with axial gradients (red square) (c), evidencing the emerging of asymmetrical magnetization processes in the nanowires [4]."Publicación Acceso Abierto Asymmetrical magnetization processes induced by compositional gradients in ferromagnetic nanowires(Elsevier, 2024-01-16) Fernández González, Claudia; Berja, Alba; Álvaro Gómez, Laura; Martín-Rubio, Carolina; Mascaraque, Arantzazu; Aballe, Lucía; Sanz, Ruy; Pérez, L.; Ruiz Gómez, Sandra; Centros de Excelencia Severo Ochoa, INSTITUTO MADRILEÑO DE ESTUDIOS AVANZADOS EN NANOCIENCIA, SEV-2016-0686Electrodeposited nanowires are an excellent scenario to study and control magnetic domain wall motion in nanostructures. In particular, the introduction of local changes in composition during the growth procedure has been proven to be very efficient for controlling the magnetization dynamics. In this work, we show the possibility of introducing compositional gradients in FeNi electrodeposited nanowires by gradually changing the Fe/Ni ratio along their axis. These compositional gradients produce an asymmetrical landscape for domain wall motion which is reflected in asymmetrical magnetization processes under an applied magnetic field. By studying nanowires with different compositional gradients we were able to correlate composition and magnetic asymmetry. Our results pave the way towards full control of the movement of domain walls along the nanowires.Publicación Restringido Progress on magnetic 3D nanowire networks for space technology(IEEE Nanotechnology Council, 2024-08-07) Vivas, Laura; Ruiz Clavijo, Alejandra ; Caballero Calero, Olga ; Navas, David; Sanz, Ruy; Martín González, MarisolPublicación Acceso Abierto Magnetoelastic Anisotropy Drives Localized Magnetization Reversal in 3D Nanowire Networks(Royal Society of Chemistry, 2025-01) Vivas, Laura G.; Ruiz Clavijo, Alejandra ; Caballero Calero, Olga ; Navas, David; Ordoñez Cencerrado, Amanda A.; Manzano, Cristina V.; Sanz, Ruy; Martín-González, Marisol; Agencia Estatal de Investigación (España)Three-dimensional magnetic nanowire networks (3DNNs) have shown promise for applications beyond those of their linear counterparts. However, understanding the underlying magnetization reversal mechanisms has been limited. In this study, we present a combined experimental and computational investigation on simplified 3DNNs to address this gap. Our findings reveal a previously unidentified in-plane magnetoelastic anisotropy, validated through comparisons between experimental and simulated magnetic data. Notably, we discovered that magnetization reversal in 3DNNs is driven by highly localized magnetic states, arising from the interplay of exchange and dipolar interactions, magnetoelastic anisotropy, and nanowire microstructure. This discovery challenges the prevailing understanding of magnetization reversal in nickel nanowires. Our work provides critical insights into the magnetic behavior of 3DNNs, opening doors for their tailored design and optimization.
