Institut Laue-Langevin

Adsorption at Interfaces and Contact Lines: From Molecular Oversolubility to Macroscopic Wetting

Abstract Interfaces between two phases and contact lines between three phases are the locus of complex phenomena that govern the thermodynamic and dynamic behavior of such systems─both at the microscopic and macroscopic scales. Yet, despite the abundant literature on the topic, t...

Crystal Chemistry of a Nickelate Superconductor: La/Pr Distribution, Oxygen Stoichiometry, and High-Pressure Structural Evolution in La2PrNi2O7

Abstract We report a comprehensive structural characterization of La2PrNi2O7, a bilayer Ruddlesden–Popper nickelate that has been described to exhibit high-temperature superconductivity under hydrostatic pressure. Synchrotron X-ray diffraction (SXRD) data and high-resolution neut...

Noncentrosymmetric Manganese Bismuth Thiocyanate Perovskites

Abstract Symmetry-lowering orderings in perovskites can produce a wide range of functions. Thiocyanate based perovskites, AM(SCN)3, have orderings distinct from those of the atomic oxides, enabling new functional behavior. We report four new defect-ordered manganese thiocyanate p...

Lithium Makes the Difference─Evolution of Lithium Vacancy Disorder during Temperature-Induced Phase Transitions of the Li-Ion Conductor Li4SnS4

Abstract Sulfide-based lithium-ion solid electrolytes are promising candidates for solid-state batteries due to their high ionic conductivities, although they typically exhibit high moisture sensitivity. Li4SnS4 has recently attracted scientific interest because it exhibits highe...

Anomalous weak values in a generalized Mach–Zehnder interferometer extracted directly from intensity measurements

Abstract Weak values provide a powerful framework for characterizing quantum systems. Their experimental extraction conventionally relies on weak conditioned von Neumann measurements, involving weak interactions and meter states that increase experimental complexity and often lim...

Supramolecular Janus Nanocylinders: Solvent-Induced Hydrogen-Bond Modulation Yields Structures under Thermodynamic Equilibrium

Abstract Janus nanocylinders (JNCs) are anisotropic, non-centrosymmetric colloids composed of two different faces, making them attractive for advanced functional materials. However, their nanometric dimensions and pronounced anisotropy complexify their preparation. Recently, a ve...

Structural study of archaic orichalcum ingots from gela (sicily) via time-of-flight neutron diffraction

Abstract Orichalcum is a precious copper-zinc alloy known from ancient Mediterranean contexts. Eighty ingots of Orichalcum were recovered underwater near Gela (Sicily, Italy) and they are dated back to the 6th century BCE establishing a unicum in the Mediterranean Sea. Here, 11 s...

Frequency-dependent shear and bulk viscosity of aqueous and non-aqueous lithium battery electrolytes

Transverse ultrasound was used to examine the frequency-dependent shear viscosities of three lithium bis(trifluoromethanesulfonyl)imide-based electrolytes: aqueous, non-aqueous, and hybrid aqueous-organic solutions. Frequency-dependent bulk viscosities of two of the electrolytes...

A review of selected Swedish contributions to instrumentation at neutron scattering facilities

Abstract The European Spallation Source in Lund, Sweden, is the next generation neutron research facility that will provide unprecedented capabilities for particle physics as well as materials and life science research through its high brightness, long-pulse neutron source and ad...

Beta Atlas: Charting Global Production of Nonconventional β − -Emitters for Targeted Radiopharmaceutical Therapy—Part 1

β-minus particle (β−)–emitting radionuclides have long been central to targeted radiopharmaceutical therapy. Interest in expanding their repertoire beyond conventional options has grown over time, as the need for radionuclides with different emission profiles and theranostic pote...

Exploring the Possibility of Extrinsic Anion Vacancies in Li6PS5Cl

Abstract The search for superionic conductors requires a deep understanding of the underlying crystal structure and local dynamic processes. Therefore, cationic and anionic substitutions are typically performed to monitor the resulting changes in the structure and ionic transport...

Towards real-time surrogate-free Bayesian inversion for neutron reflectometry

Abstract Neutron reflectometry (NR) is a key enabling technology for many areas of scientific development. Although the forward reflectivity model is well-known, inferring the physical properties of a sample from NR data requires the solution of an inverse problem. Increasingly,...

Noncollinear kagome magnet driven by giant antisymmetric exchange

Kagome lattices host exotic phenomena such as quantum spin liquids, topological Weyl nodes, and flat bands. The kagome ferromagnet Co3Sn2S2 has been a focus of debate due to conflicting reports on its magnetic character. Here, using weakly perturbative probes—primarily neutron sc...

Correlated Polymer‐Proton Hopping Enables Water‐Independent Fast Proton Transport in Poly(Ionic Liquid) Membranes

Polymer electrolyte membranes composed of ionic liquids (IL), capable of conducting protons efficiently at elevated temperatures, without external humidification, could transform fuel cell technology. However, the molecular origins of such proton transport remain poorly understoo...

Up and Downthe Hill-Plot: Hydrides of CeGe–Structureand Magnetism

Abstract The hydrogenation behavior of FeB type CeGe was investigated. Hydrogenation (deuteration) produces mixtures of two modifications, similar to hydrides of other FeB type phases LnTt (Ln = La, Ce, Nd; Tt = Si, Ge). P-CeGeD0.75(2) (Pnma, a = 8.1603(5) Å, b = 4.0938(3) Å, c =...