The overall strategy of our laboratory is in depth understanding of magnetism in condensed matter with a good balance between state-of-the-art research, development of new instruments, and applications.
LNO WEBSITE
Laboratoire Nano-Magnétisme et Oxydes (LNO)
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Projets
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Fet-Open TSAR – Topological Solitons in AntifeRroics
Sur la piste de nouveaux dispositifs électroniques et spintroniques via des interactions lumière-matière exotiques Les états topologiques sont des phases exotiques de la matière qui résistent au…
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OERKOP ANR project
Oxygen evolution reaction: the key to optimize photocatalytic water oxidation (01/04/2023 – 31/03/2027) The ANR OERKOP project aims to understand and describe the mechanisms underlying the OER for co-catalyst modified hematite photoanodes, by using a correlative operando characterization approach at the nanoscale. OERKOP proposes a comparative study between two archetypal materials used as photoanodes: α-Fe2O3…
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Projet ANR CARAMEL
Outil de caractérisation des propriétés magnétiques à l’échelle nanométrique – CARAMEL
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Projet ANR MULTINANO
Le projet ANR MULTINANO (Nano-circuits fonctionnels aux interfaces laminaires MULTIferroïques artificielles par NANOlithographie) est la combinaison d’une démarche expérimentale et théorique,…
Domaines Techniques
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AO-MBE Oxydes @ SPEC / LNO
La technique de l’épitaxie par jets moléculaires ou MBE en anglais (Molecular Beam Epitaxy) a été développée initialement pour la croissance cristalline des semi-conducteurs. Il s’agit d’une…
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Banc de mesure de la photo-électrolyse de l’eau / spectroscopie d’impédance
Le banc de mesure mis en place à SPEC/LNO permet la réalisation des mesures de photo-électrolyse de l’eau et de spectroscopie d’impédance. Le montage comporte une lampe Xe de 1000W, un filtre IR, un…
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Banc multiferroïque
Les oxydes de structure cristalline pérovskite sont très étudiés car ils adoptent une structure relativement simple et possèdent généralement des propriétés ferroïques remarquables (ferromagnétisme,…
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Croissance par ablation laser pulsée femto-seconde d’hétérostructures à base d’oxydes pour la SPINtronique (CALPHOSPIN)
PROJECT: “CALPHOSPIN” 2013-2016 Coordinator: CEA-Saclay, DSM/IRAMIS/SPEC/LNO (M. Viret, J.-B. Moussy, J.-Y. Chauleau, D. Colson) Partners: LPS Université Paris-Sud, UMR CNRS-Thalès and SOLEIL Funds:…
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Dispositif d’effet Kerr sous ultravide (SMOKE : Surface Magneto-Optic Kerr Effect)
L’effet KERR magnéto-optique résulte de l’interaction entre une onde électromagnétique polarisée linéairement et un milieu aimanté. L’onde réfléchie est alors polarisée elliptiquement (figure 1).
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Magnetometry
The magnetic properties of bulk samples and thin films can be studied by Vibrating Sample Magnetometry (VSM) or Magneto-optic Kerr effect (MOKE). Two VSM measuring devices are available in the…
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Spectrométrie de photoélectrons X (XPS)
La spectrométrie XPS (X-Ray Photo-electron Spectroscopy) La spectroscopie XPS permet de mesurer le nombre d’électrons émis dans un intervalle d’énergie en fonction de l’énergie de liaison des…
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Synthesis and physico-chemical characterization of solid state materials @SPEC/LNO
Bastien Loret (PhD student), Anaëlle Legros (PhD student), Anne Forget, Dorothée Colson Part of the group’s activity is focused on the synthesis and the physicochemical study of solid state…
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Vibrating sample magnetometry
The object of this vibrating sample magnetometer (VSM, DMS Society) is to determine according to the applied magnetic field and the temperature, the magnetic properties of thin layers and small…
Emplois
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Magneto-ionic gating in magnetic tunnel junctions
Stage M2CEA Saclay, Site de l’Orme des merisiers (91) Essonne, FranceJanuary 6 2025March 1 2025Domain, Specialties : PHYSICS Keywords: Spintronics, ionic gating of magnetic anisotropy, neuromorphic computing Research Unit : SPEC/LNO Magneto-ionics is an emerging field that offers great potential for reducing power consumption in spintronics memory applications through non-volatile control of magnetic properties through gating. By combining the concept of voltage-controlled ionic motion from memristor technologies, typically used…
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Epitaxial multifunctionnal multiferroic oxynitride thin films
Stage M2CEA Saclay, Site de l’Orme des merisiers (91) Essonne, FranceJanuary 10 2025February 1 2025Domain, Specialties : Condensed matter physics Keywords: Oxinitrides, molecular beam epitaxy, ferroélectricité, ferrimagnétisme, synchrotron, lithography Research Unit : SPEC / LNO Epitaxial multifunctionnal multiferroic oxynitride thin films The objective of the internship is to grow epitaxial thin multiferroic ferrite/perovskite (CoFe2(OxN1-x)4/N:BaTiO3 oxynitride films by oxygen and nitrogen plasma assisted molecular beam epitaxy: a potentially new magnetoelectric…
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Giant magnetoresistance resistors for local characterization of surface magnetic state: towards Non-Destructive Testing (NDT) applications
CDDCEA Saclay, Site de l’Orme des merisiers (91) Essonne, FranceNovember 1 2024January 6 2025CIFRE thesis in the field of non-destructive testing using magnetic sensors in collaboration with 3 partners: Laboratoire de Nanomagnétisme et Oxyde (SPEC/LNO) du CEA Paris-Saclay Laboratoire de Génie Electrique et Ferroélectricité (LGEF) de l’INSA Lyon Entreprise CmPhy La grande majorité des aciers de structure et de construction utilisés par l’industrie du transport, de l’énergie et…
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Magnetic mapping using magnetoresistive magnetic sensors.
Stage M2CEA Saclay, Site de l’Orme des merisiers (91) Essonne, FranceFebruary 1 2025February 3 2025Domain, Specialties : PHYSICS Keywords: Magnetic sensor, stray fields Research Unit : The aim of the internship will be to optimize the magnetoresistive sensors, the 3D probe and the scanner of the setup developed in the laboratory and enabling the quantitative and vectorial measurement of leakage fields emitted by various samples ranging from paleomagnetic rocks…
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Local magnetic microscopy by integrating magnetoresistive sensors
Stage M2CEA Saclay, Site de l’Orme des merisiers (91) Essonne, FranceFebruary 1 2025February 3 2025Domain, Specialties : PHYSICS Keywords: magnetic sensor, local probe microscopy, magnetoresistance Research Unit : SPEC/LNO The aim of the internship is to study the effect of integrating magnetoresistive magnetic sensors into flexible AFM-type cantilever on their performance. The sensors, designed to be integrated into an ultrasensitive magnetic microscope, will be microfabricated in a clean room…
Thèses
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Advanced characterization of ferroelectric domains in hafnia-based thin films
LENSIS : Solid state physics, surfaces and interfacesParis-Saclay Physique en Île-de-France (EDPIF) SaclayLes mémoires ferroélectriques à accès aléatoire (FeRAM en anglais) à base d’oxyde d’hafnium et de zirconium (HZO) sont intrinsèquement ultra-faibles en consommation grâce au mécanisme de changement… -
Covalent 2D organic nanostructures by optically controlled cross-linking of molecular self-assemblies
LEPO : Solid state physics, surfaces and interfacesParis-Saclay Ondes et Matière (EDOM) SaclayThe self-assembly of molecules on crystalline substrates leads to non-covalent 2D structures with interesting properties for various fields such as optoelectronics and sensors. The stabilization of… -
Magneto-ionic gating of magnetic tunnel junctions for neuromorphic applications
LNO : Emerging materials and processes for nanotechnologies and microelectronicsParis-Saclay Physique et Ingénierie: électrons, photons et sciences du vivant (EOBE) SaclayMagneto-ionics is an emerging field that offers great potential for reducing power consumption in spintronics memory applications through non-volatile control of magnetic properties through gating.… -
Quantum computing with nuclear spins
GQ : New computing paradigms, circuits and technologies, incl. quantumParis-Saclay Physique en Île-de-France (EDPIF) SaclayNuclear spins in solids are amongst the quantum systems with the longest coherence times, up to minutes or even hours, and as such are attractive qubit candidates; however, controlling and reading… -
Flying Qubit in Graphene
GNE : Mesoscopic physicsSaclayThe solid-state systems, presently considered for quantum computation, are built from localized two-level systems, prime examples are superconducting qubits or semiconducting quantum dots. Due to… -
Study of electronic processes in nitride LEDs by electro-emission microscopy
LEPO : Solid state physics, surfaces and interfacesParis-Saclay Ondes et Matière (EDOM) SaclayNitride LEDs are universally used for energy-efficient lighting. They are extremely efficient at low indium content and low current density, allowing to produce commercial white LEDs from a blue LED… -
Fluorescence photoswitching for excitonic gate
LEPO : Physical chemistry and electrochemistrySaclayFörster Resonance Energy Transfer (FRET) enables the exciton diffusion between molecules through a characteristic distance of 1 to 10 nm. The association of multiple fluorophores represents a… -
Experimental study of boundary layers in turbulent convection by diffusive waves spectroscopy
SPHYNX : Soft matter and complex fluidsParis-Saclay Physique en Île-de-France (EDPIF) SaclayTurbulent convection is one of the main drivers of geophysical and astrophysical flows, and is therefore a key element in climate modeling. It is also involved in many industrial flows. Transport… -
Early diagnosis of sepsis using a GMR sensor-based biochip
LNO : Health and environment technologies, medical devicesParis-Saclay Physique en Île-de-France (EDPIF) SaclaySepsis, an extreme and deregulated immune response to an infection that then spreads through the bloodstream, can lead to organ dysfunction and death (11 million deaths worldwide every year). The… -
Can we predict the weather or the climate?
SPHYNX : Theoretical PhysicsParis-Saclay Physique en Île-de-France (EDPIF) SaclayAccording to everyone’s experience, predicting the weather reliably for more than a few days seems an impossible task for our best weather agencies. Yet, we all know of examples of “weather … -
Sub-critical crack growth in oxide glasses
SPHYNX : Solid state physics, surfaces and interfacesAutre Physique en Île-de-France (EDPIF) SaclayMaterial failure is a concern for scientists and engineers worldwide. This includes oxide glasses, which are integral parts of building, electronics, satellites due to multiple advantageous… -
Novel oxynitride based artificial multiferroic oxynitride thin films
LNO : Solid state physics, surfaces and interfacesParis Sciences et Lettres Physique en Île-de-France (EDPIF) SaclayN-doped oxides and/or oxinitrides constitute a booming class of compounds with a broad spectrum of useable properties and in particular for novel technologies of carbon-free energy production,… -
Thermoelectric energy conversion control via coordination chemistry of transition metal redox ions in ionic liquids
SPHYNX : Physical chemistry and electrochemistryParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayThermoelectricity, a materials’ capability to convert heat in to electric energy has been known to exist in liquids for many decades. Unlike in solids, this conversion process liquids take several… -
Design and implementation of cryogenic electronics for signal acquisition at cryogenic temperatures
PSR : InstrumentationParis-Saclay Physique et Ingénierie: électrons, photons et sciences du vivant (EOBE) SaclayThe aim of our proposed thesis is to demonstrate that it is possible to integrate at cryogenic temperatures the entire instrumentation chain for reading and controlling quantum components at… -
Giant magnetoresistance resistors for local characterization of surface magnetic state: towards Non-Destructive Testing (NDT) applications
LNO : Solid state physics, surfaces and interfacesINSA Lyon Electronique, Electrotechnique et Automatique (EEA) SaclayCIFRE thesis in the field of non-destructive testing using magnetic sensors in collaboration with 3 partners: Laboratoire de Nanomagnétisme et Oxyde (SPEC/LNO) du CEA Paris-Saclay Laboratoire de… -
Perovskite ferroelectric oxynitride thin films with tunable properties
LNO : Solid state physics, surfaces and interfacesParis-Saclay Physique en Île-de-France (EDPIF) SaclayN-doped oxides and/or oxinitrides constitute a booming class of compounds with a broad spectrum of useable properties and in particular for novel technologies of carbon-free energy production.…
Thèmes de recherche
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Nanomagnetism, spintronic and multiferroic materials
This research topic focuses on the development and study of: magnetic materials or multiferroic oxides (ferroelectricity associated with magnetism)* the magnetization dynamics in hybrid…