A5057717634- Physics of Superconductivity and Magnetism
- Magnetism in coordination complexes
- Magnetic properties of thin films
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Lanthanide and Transition Metal Complexes
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced Condensed Matter Physics
- ZnO doping and properties
- Superconducting Materials and Applications
- Electron Spin Resonance Studies
- Organic and Molecular Conductors Research
- Quantum and electron transport phenomena
- Magnetic and transport properties of perovskites and related materials
- Iron-based superconductors research
- Atomic and Subatomic Physics Research
- Magnetic Properties and Applications
- Magnetic Field Sensors Techniques
- Superconductivity in MgB2 and Alloys
- Advanced NMR Techniques and Applications
- Particle accelerators and beam dynamics
- Iron oxide chemistry and applications
- Surface and Thin Film Phenomena
- Mechatronics Education and Applications
- Crystallography and molecular interactions
Institut de Ciència de Materials de Barcelona
2003-2025
Instituto de Ciencia de Materiales de Sevilla
2024-2025
Consejo Superior de Investigaciones Científicas
2005-2025
Elisava Barcelona School of Design and Engineering
2014-2024
Centre de Recerca Matemàtica
2006-2024
Sociedad Española de Nefrología
2022
FC Barcelona
2012-2020
Salesian University
2009-2020
Universitat Autònoma de Barcelona
1997-2007
University of Twente
1998-2003
Abstract Total control over the electronic spin relaxation in molecular nanomagnets is ultimate goal design of new molecules with evermore realizable applications spin-based devices. For single-ion lanthanide systems, strong spin–orbit coupling, potential are linked to energetic structure crystal field levels and quantum tunneling within ground state. Structural engineering timescale these events via appropriate fields represents a fundamental challenge for synthetic chemist, since tunnel...
The cyanoacetate complexes, {[Ln<sub>2</sub>(CNCH<sub>2</sub>COO)<sub>6</sub>(H<sub>2</sub>O)<sub>4</sub>]·2H<sub>2</sub>O}<sub>n</sub>, with Ln = Gd, Nd, show field-induced slow relaxation: resonant phonon trapping and Orbach process for direct processes Nd.
Abstract In this work, we review recent progress achieved in the use of chemical solution deposition (CSD) based on fluorinated metalorganic precursors to grow superconducting REBa 2 Cu 3 O 7 (REBCO) films and coated conductors (CCs). We examine, first all, advances optimizing steps related solutions preparation, pyrolysis novel low-fluorine solutions. show that a new type multifunctional colloidal including preformed nanoparticles (NPs), can be used introduce artificial pinning centers...
[Gd(MeCOO)(PhCOO) 2 ], a 2D MOF is reported and characterized, the material shows magnetocaloric effect both in bulk chemisorbed on Silicon substrate. This opens up possibilities for on-surface cooling devices.
Abstract We report the microwave assisted synthesis of a bidimensional (2D) MOF formula [Dy(MeCOO)(PhCOO) 2 ] n ( 1 ) and its magnetically diluted analogue [La 0.9 Dy 0.1 (MeCOO)(PhCOO) d ). is 2D material with single‐ion‐magnet (SIM) behaviour multifunctional, magnetic luminescent material. can be exfoliated into stable nanosheets by sonication.
The synthesis and magnetostructural properties of a new low-dimensional magnetic system based on α-furoate ligands, {[Dy(α-C4H3OCOO)(μ-(α-C4H3OCOO))2(H2O)3]}n, abbreviated {Dy(α-fur)3}n, are reported. X-ray diffraction experiments results evidence the presence two different Dy coordination environment types differing only in position one furoate ligands. crystallographic structure is formed by polymeric chains along c-axis, each composed just type, coupled within bc-plane with same type....
Defects in ceramic materials are generally seen as detrimental to their functionality and applicability. Yet, some complex oxides, defects present an opportunity enhance of properties or even lead the discovery exciting physics, particularly presence strong correlations. A paradigmatic case is high-temperature superconductor YBa2Cu3O7-δ (Y123), which nanoscale play important role they can immobilize quantized magnetic flux vortices. Here previously unforeseen point buried Y123 thin films...
Abstract The rational design of the magnetic anisotropy molecular materials constitutes a goal primary importance in magnetism. Indeed, applications nanomagnets, such as single‐molecule magnets and refrigerants, depend on full control over this property. Axially anisotropic systems are frequently classified easy axis or plane, depending whether lowest energy is obtained by application field parallelly perpendicularly to unique axis. Here, three lanthanide complexes studied function...
We present the synthesis, through a simple, microwave-assisted method, of lanthanoid-based 2D metal-organic frameworks (MOFs) general formula [LnxLn'1-x(MeCOO)(PhCOO)2], including homonuclear compounds (x = 1), LnEu, Tb, and heterometallic compounds, [TbEu]. The crystalline material is formed by neutral nanosheets held together van der Waals interactions, which can be easily exfoliated sonication. Photoluminescent emission in visible range was observed for all synthesized MOF via excitation...
Abstract Multi‐metallic multivariate (MTV) rare earth (RE) metal−organic frameworks (MOFs) are of interest for the development multifunctional materials, however examples with more than three RE cations and obstructed by compositional segregation during synthesis. Herein, this work demonstrates synthesis a multi‐metallic MTV MOF incorporating two, four, six, or eight different ions sizes in nearly equimolar amounts no segregation. The MOFs formed combination (La, Ce, Eu, Gd, Tb, Dy, Y, Yb)...
We present the synthesis and magneto-thermal properties of carborane-based lanthanide metal-organic frameworks (MOFs) with formula {[(Ln)
Didactic models are invaluable resources for teaching Machines and Mechanisms, a crucial subject in the Engineering curriculum. This work investigates impact of various types on learning outcomes across different instructional approaches, from traditional to active inquiry-based methods. We analyzed range didactic used second-year Theory Mechanism (TMM) course at EUSS School Barcelona over past decade, including: i) mechanical built with “Meccano” parts, 3D-printed models, kits simulating...
One-dimensional (1D) antiferromagnetic chains are fascinating because of their exotic quantum phenomena. However, isolating large-spin S remains challenging as even minimal interchain interaction J’ tends to drive unwanted long-range...
The room temperature reaction of [Mn<sub>2</sub>O<sub>2</sub>(bipy)<sub>4</sub>](ClO<sub>4</sub>)<sub>3</sub>(bipy = 2,2′-bipyridine) with Ca(CHCl<sub>2</sub>COO)<sub>2</sub>in methanol produced a yellow crystalline material.
YBCO films grown by the trifluoroacetate (TFA) method with increasing number of BaZrO3 (BZO) nanoparticles have been measured in-field angular transport measurements to investigate changes in pinning landscape. The isotropic and anisotropic contributions critical current density, Jc(H), magnetic field applied orientation determined, allowing us characterize population correlated defects along c axis ab planes. First, influence oxygenation process on formation different sorts standard is...
A {Tb(α-fur)<sub>3</sub>}<sub>n</sub> one-dimensional complex shows Single-Chain-Magnet (SCM) behavior at <italic>H</italic> = 0 in two different types of antiferromagnetic transverse chains (A and B), triggered by the existence defects breaking into segments with short-range order.
New synthesized polymeric mixed complexes {Tb<sub>x</sub>Eu<sub>1−x</sub>} exhibit both tunable luminescence and SMM behavior.
Failure Mode and Effect Analysis (FMEA) is a powerful quality tool, widely used in industry, for the identification of failure modes, their effects causes. In this work, we investigated utility FMEA education field to improve active learning processes. our case study, principles were adapted assess risk failures Mechanical Engineering course on “Theory Machines Mechanisms” conducted through project-based, collaborative “Study Research Path (SRP)” methodology. The SRP an instruction format...
"Self-refrigerated" multifunctional MOFs combine Gd for optimal magnetocalorics with other lanthanides (Dy, Tb, Eu) as single-molecule magnets and/or luminescent units, offering exciting possibilities information storage and processing.
We study the magnetic behavior of a finite superconducting ring in presence uniform applied field directed along its axis by means critical-state model and minimization energy. systematically dependence magnetization ac susceptibility upon geometry develop an approximate analytical expression for case narrow rings any aspect ratio. Besides, we show how critical-current density superconductor can be obtained from measurements conclude that is very convenient one such purpose. In particular,...
The magnetization of microwave-synthesized CoFe<sub>2</sub>O<sub>4</sub> nanoparticles, after the stringent thermal treatment that would be necessary to prepare hybrid ferromagnetic–YBCO films, is preserved.