Neutrons

Laboratoire Léon Brillouin

UMR12 CEA-CNRS, Bât. 563 CEA Saclay

91191 Gif sur Yvette Cedex, France

+33-169085241 llb-sec@cea.fr

BD diffusons les neutrons

« Domaines Techniques

drapeau

Neutrons

logo_tutelle

logo_tutelle

Neutrons

Neutron diffusion make possible to probe the matter and its sensitivity to the light elements and to magnetism make it a single and original probe. Within IRAMIS, neutron spectrometry is used in various fields in fundamental and applied research and is developed around the CEA-CNRS Laboratory Leon Brillouin (LLB) around the Orphée reactor in Saclay. Neutrons are mainly intended for the study of condensed matter. The scientific activity of the laboratory belongs to three sectors of equal importance: physicochemistry, structural studies and phase transitions, magnetism and supraconductivity.

#892 - Màj : 28/08/2019

• Diffraction

Voir aussi

$DREAM (Diffraction Resolved by Energy and Angle Measurements)$

DREAM (Diffraction Resolved by Energy and Angle Measurements)

DREAM: A versatile powder diffractometer with single crystal capabilities Brief description DREAM is a time-of-flight diffractometer that is mainly dedicated to powder diffraction, but also offers single crystal capabilities.

: a Small-Angle Modular instrument

: a Small-Angle Modular instrument

Brief description SAM is a medium size small-angle neutron scattering (SANS) instrument, developed by the Laboratoire Léon Brillouin (LLB) in collaboration with the Institut Laue Langevin (ILL, Grenoble).

Bifrost

Cspec

LLB on Sharp at the ILL

LLB on Sharp at the ILL

The Laboratoire Léon Brillouin (LLB) holds the French expertise in neutron science and related instrumentation.

MAGiC

MAGiC: a polarised single crystal diffractometer Brief description MAGiC is a polarized time-of-flight single-crystal diffractometer dedicated to the study of magnetic properties in both applied and purely fundamental systems.

Skadi

LLB is engaged at various levels in the construction of five spectrometers around ESS (European Spallation Source in Sweden). Skadi-2020-09.pdf

Anisotropic reinforcement of nanocomposites tuned by by magnetic orientation of the filler network.

Anisotropic reinforcement of nanocomposites tuned by by magnetic orientation of the filler network.

The improvement of the mechanical properties of polymer films by inclusion of mineral particles is a well known industrial practice used since the end of the XIX century.

Control of roughness at interfaces and the impact on charge mobility in all-polymer field-effect transistors.

Control of roughness at interfaces and the impact on charge mobility in all-polymer field-effect transistors.

Using conjugated polymers as the active materials in electronic and optoelectronic devices opens up the possibility of fabricating all-polymer devices using solution processing technologies.

Coupling of laser excitation and inelastic neutron scattering measurement.

Coupling of laser excitation and inelastic neutron scattering measurement.

Light-harvesting antennae are pigment-protein complexes involved in light-absorption and excitation energy transfer (EET) to the so-called "reaction center" complexes, where the photochemical processes of photosynthesis take place.

Electronic liquid crystal state in high temperature superconductor YBa2Cu3O6.45

Electronic liquid crystal state in high temperature superconductor YBa2Cu3O6.45

The strongly interacting conduction electrons can be accurately represented as a gas of weakly interacting electron-like excitations.

Hidden degrees of freedom in aperiodic crystals.

Hidden degrees of freedom in aperiodic crystals.

Hidden degrees of freedom in aperiodic crystals.

Influence of macromolecular crowding on protein stability.

Influence of macromolecular crowding on protein stability.

Following the synthesis by the ribosome, to carry out its biological function, a protein much fold into a single, well defined conformational state: the native state.

Influence of the alteration layer morphology on the silicate glass corrosion mechanism : role of Ca and Zr

Influence of the alteration layer morphology on the silicate glass corrosion mechanism : role of Ca and Zr

This study investigates the long term behavior of glasses used for confinement of nuclear wastes.

Looking at micellisation of gradient copolymers in supercritical carbon dioxide.

Looking at micellisation of gradient copolymers in supercritical carbon dioxide.

Magnetoelectric coupling in BiFeO3 single cristals and thin films

Magnetoelectric coupling in BiFeO3 single cristals and thin films

BiFeO3 is a multiferroic materials in which ferroelectric and anti-ferromagnetic orders coexist well above room temperature (TN=643 K, TC=1093 K), with a high polarization (over 100 μC/cm2 [1]).

Neutrons and water structure: the heavy water bridge.

Neutrons and water structure: the heavy water bridge.

In 1893 Sir William Armstrong reported a remarkable experiment: if a high voltage is established between two wine-glasses filled to the brim with pure water and connected by a cotton thread, a rope of water is formed and remains suspended between the lips of the two glasses.

Self assembly of fatty acids in aqueous solutions.

Self assembly of fatty acids in aqueous solutions.

The use of agricultural resources for industrial purposes will undoubtly be one of the major challenges of the 21 st century.

Spin ladder iron oxide : Sr3Fe2O5

Spin ladder iron oxide : Sr3Fe2O5

The concept of "spin ladder" originally appeared to study the theoretically still controversial antiferromagnet (AF) 2D square lattice in high temperature superconducting cuprates starting from a well understood 1D AF chain [1-2].

Superconducting pairing and electronic anomalies induced by the spin collective mode in HTC superconductors.

Superconducting pairing and electronic anomalies induced by the spin collective mode in HTC superconductors.

This work is part of a theoretical project which aims to unravel the mechanism at work in the high temperature cuprate superconductors.

Unusual magnetic order in the pseudogap region of the superconductor HgBa2CuO4+δ

Unusual magnetic order in the pseudogap region of the superconductor HgBa2CuO4+δ

The pseudogap region of the phase diagram is an important unsolved puzzle in the field of hightransition-temperature (Tc) superconductivity, characterized by anomalous physical properties below a certain temperature, T*[1].

Retour en haut