A5034451554- Molecular Junctions and Nanostructures
- 2D Materials and Applications
- Quantum and electron transport phenomena
- Magnetic properties of thin films
- Metal-Organic Frameworks: Synthesis and Applications
- Graphene research and applications
- Semiconductor materials and devices
- Galaxies: Formation, Evolution, Phenomena
- Organic Light-Emitting Diodes Research
- MXene and MAX Phase Materials
- Crystallography and molecular interactions
- Covalent Organic Framework Applications
- Ferroelectric and Negative Capacitance Devices
- Astronomy and Astrophysical Research
- ZnO doping and properties
- Advanced Memory and Neural Computing
- Conducting polymers and applications
- Machine Learning in Materials Science
- Magnetism in coordination complexes
- Quantum-Dot Cellular Automata
- Perovskite Materials and Applications
- X-ray Diffraction in Crystallography
- Organic Electronics and Photovoltaics
- Advanced biosensing and bioanalysis techniques
- Electronic and Structural Properties of Oxides
Parc Científic de la Universitat de València
2015-2025
Université Paris-Saclay
2018-2024
Centre National de la Recherche Scientifique
2014-2024
Thales (France)
2024
Universitat de València
2015-2023
Laboratoire Albert Fert
2012-2023
Université Paris-Sud
2012-2018
Universidad Autónoma de Madrid
2016
Istituto Nazionale di Fisica Nucleare, Sezione di Genova
1996
Though generally considered insulating, recent progress on the discovery of conductive porous metal-organic frameworks (MOFs) offers new opportunities for their integration as electroactive components in electronic devices. Compared to classical semiconductors, these hybrids combine crystallinity inorganic materials with easier chemical functionalization and processability. Still, future development depends ability produce high-quality films fine control over orientation, crystallinity,...
Exploring supermassive black hole (SMBH) populations in protoclusters offers valuable insights into how environment affects SMBH growth. However, research on active galactic nuclei (AGN) within these areas is still limited by the small number of known at high redshift and availability associated deep X-ray observations. In order to understand different environments affect AGN triggering growth redshift, we investigated population field MUSE Quasar Nebula 01 (MQN01) protocluster z ≃ 3.25....
A direct link between the large-scale environment and galaxy properties is very well established in local Universe. However, little known about role of for growth before peak cosmic star formation history at z>3 due to rarity high-redshift, overdense structures. Using a combination deep, multiwavelength observations, including MUSE, JWST, Chandra, HST, ground-based imaging, we detected studied population star-forming galaxies field hyperluminous quasar z≈3.25 associated with giant Lyα...
We report on polariton condensation in photonic molecules formed by two coupled micropillars. show that the process is strongly affected interaction with cloud of uncondensed excitons and thus depends exact localization these within molecule. Under symmetric excitation conditions, triggered both binding antibinding states On opposite, when excitonic injected one pillars, a metastable state observed total transfer condensate into micropillars can be achieved. Our results highlight crucial...
Conductive metal-organic frameworks are opening new perspectives for the use of these porous materials applications traditionally limited to more classical inorganic materials, such as their integration into electronic devices. This has enabled development chemiresistive sensors capable transducing presence specific guests an electrical response with good selectivity and sensitivity. By combining experimental data computational modelling, a possible origin underlying mechanism this...
Abstract Prussian blue (PB) represents a simple, economical, and eco‐friendly system as cathode material for sodium‐ion batteries (SIBs). However, structural problems usually worsen its experimental performance thus motivating the search alternative synthetic strategies formation of composites that compensate these deficiencies. Herein, straightforward approach preparation PB/MoS 2 ‐based nanocomposites is presented. MoS provides 2D active support homogeneous nucleation porous PB...
In the race towards two-dimensional electronic and optoelectronic devices, semiconducting transition metal dichalcogenides (TMDCs) from group VIB have been intensively studied in recent years due to indirect direct band-gap bulk monolayer. However, new materials still need be explored. For example, TMDCs IVB predicted larger mobilities than their counterparts monolayer limit. this work we report mechanical exfoliation of ZrX2 (X = S, Se) down study dimensionality dependence Raman spectra...
Chirality-induced spin selectivity (CISS), whereby helical molecules polarize the of electrical current, is an intriguing effect with potential applications in nanospintronics. In this nascent field, study CISS using paramagnetic chiral molecules, which could introduce another degree freedom controlling transport, remains so far unexplored. To address challenge, herein we propose use self-assembled monolayers (SAMs) lanthanide-binding peptides. elucidate nuclei, peptide coordinating or...
We report on spin transport in state-of-the-art epitaxial monolayer graphene based 2D-magnetic tunnel junctions (2D-MTJs). In our measurements, supported by ab-initio calculations, the strength of interaction between ferromagnetic electrodes and monolayers is shown to fundamentally control resulting signal. particular, switching graphene/ferromagnet interaction, reveals magneto-resistance signal MR > 80% with low resistance × area products. Descriptions only a simple K-point filtering...
We present a growth process relying on pulsed laser deposition for the elaboration of complex van der Waals heterostructures large scales, at 400 °C CMOS-compatible temperature. Illustratively, we define multilayer quantum well geometry through successive in situ growths, leading to WSe2 being encapsulated into WS2 layers. The structural constitution is confirmed by Raman spectroscopy combined with transmission electron microscopy. large-scale high homogeneity resulting 2D heterostructure...
Spin-dependent hybridization at the ferromagnet/molecule interface has recently unveiled a promising new potential for spintronics. By projecting spintronic properties (i.e. induced spin polarization) from given ferromagnet electrode to highly versatile and tailorable molecular layer, spin-dependent opened up opportunities tailor device scale. Here we focus on impact of this devices. Depending coupling strength interface, polarization can be enhanced or even inversed. In first part paper,...
We report on spin transport in WS2-based 2D-magnetic tunnel junctions (2D-MTJs), unveiling a band structure filtering effect specific to the transition metal dichalcogenides (TMDCs) family. WS2 mono-, bi-, and trilayers are derived by chemical vapor deposition process further characterized Raman spectroscopy, atomic force microscopy (AFM), photoluminescence spectroscopy. The layers then integrated complete Co/Al2O3/WS2/Co MTJ hybrid spin-valve structures. make use of Co/Al2O3 analyzer probe...
Mastering the nanostructuration of molecular materials onto solid surfaces and understanding how this process affects their properties are utmost importance for integration into solid-state electronic devices. This is even more important spin crossover (SCO) systems, in which transition extremely sensitive to size reduction effects. These bi-stable have great potential development nanotechnological applications provided intrinsic can be successfully implemented nanometric films, amenable...
Abstract The soft nature of Metal‐Organic Frameworks (MOFs) sets them apart from other non‐synthetic porous materials. Their flexibility allows the framework components to rearrange in response environmental changes, leading different states and properties. work extends this concept titanium frameworks, demonstrating control over charge transport molecular crystals. MUV‐35 is a two‐fold catenated composed heterometallic TiMn 2 trimers electron donor 4,4′,4″‐(benzo[1,2‐ b :3,4‐ ’:5,6‐...
We present new ALMA continuum and spectral observations of the MUSE Ultra Deep Field (MUDF), a $2 2$ arcmin^2 region with ultradeep multiwavelength imaging spectroscopy hosting two bright z≈ 3.22 quasars used to study intervening gas structures in absorption. Through blind search for dusty galaxies, we identified total seven high-confidence sources, six which have secure spectroscopic redshifts. estimate galaxy dust stellar masses ≃ 10^ astrosun M_ ⋆ ), as well star formation rates ($ SFR $)...
We report on the achievement of a large-scale tungsten disulfide (WS2) 2D semiconducting platform derived by pulsed-laser deposition (PLD) both insulating substrates (SrTiO3), as required for in-plane semiconductor circuit definition, and ferromagnetic spin sources (Ni), spintronics applications. show thickness phase control, with highly homogeneous wafer-scale monolayers observed under certain conditions, demonstrated X-ray photoelectron spectroscopy Raman mappings. Interestingly, growth...
Molecular magnetic tunnel junctions using self-assembled monolayers (SAMs) as barriers show stable and efficient spin transport properties. Large magnetoresistance with a flat bias voltage dependence of the is observed in La2/3Sr1/3MnO3/dodecylphosphonic acid SAM/Co nanocontacts. This opens door to spintronic tailoring though SAM engineering could also lead new venues for injection organic devices.
We study the spatial distribution of density states (DOS) at zero bias N(r) in mixed state single and multigap superconductors. provide an analytic expression for based on deGennes' relation between DOS order parameter that reproduces well Scanning Tunneling Microscopy (STM) data several superconducting materials. In gap superconductor $\beta$-Bi$_2$Pd, we find is governed by a length scale $\xi_H=\sqrt{\phi_0/2\pi H}$, which decreases rising fields. The vortex core size $\cal C$, defined...
Abstract Conductive metal–organic frameworks are opening new perspectives for the use of these porous materials applications traditionally limited to more classical inorganic materials, such as their integration into electronic devices. This has enabled development chemiresistive sensors capable transducing presence specific guests an electrical response with good selectivity and sensitivity. By combining experimental data computational modelling, a possible origin underlying mechanism this...
We report on large spin-filtering effects in epitaxial graphene-based spin valves, strongly enhanced our specific multilayer case. Our results were obtained by the effective association of chemical vapor deposited (CVD) graphene with a high quality Ni(111) ferromagnetic source. highlight that source electrode crystallinity and metallic state are preserved stabilized CVD growth. Complete nanometric valve junctions fabricated using local probe indentation process, properties extracted from...
(La,Sr)MnO(3) manganite (LSMO) has emerged as the standard ferromagnetic electrode in organic spintronic devices due to its highly spin-polarized character and air stability. Whereas semiconductors polymers have been mainly envisaged propagate spin information, self-assembled monolayers (SAMs) overlooked should be considered promising materials for molecular engineering of devices. Surprisingly, up now first key step SAM grafting protocols over LSMO surface thin films is still missing. We...
We report on the large-scale integration of graphene layers over a FePd perpendicular magnetic anisotropy (PMA) platform, targeting further downscaling spin circuits. An L10 ordered alloy showing both high magneto-crystalline and low damping constant, is deposited by magnetron sputtering. The layer then grown top it chemical vapor deposition. A step-by-step study, including structural analyses x-ray diffraction Kerr microscopy, shows that measured properties are preserved after deposition...
Abstract Van der Waals heterostructures are set as strong contenders for post‐CMOS quantum materials engineering. A major step their systematic exploration and exploitation of technological component demonstrators resides in eased large‐scale design. In this direction, the growth artificial van 2D superlattices is presented here such (MoS 2 /WS ) n , (WS /WSe with unit cells repetitions reaching > 10. The fabrication these enabled by a fully automated in‐situ pulsed laser deposition (PLD)...