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Pyrochlore Artificial Spin Ice: Advances in Fabrication and Characterization of a 3D Magnetic Metamaterial
Artificial spin ices are magnetic metamaterials consisting of arrays of magnetically coupled nanoscale magnets arranged in various geometries. They display ...
Joint Initiatives Final Event 2026
Joint Initiatives Final Event 2026
After three years of collaboration, the ten Joint Initiatives came together to share their results, experiences and lessons learned. The Final Event showcased what can be achieved when institutions, disciplines and partners work together to address complex societal challenges.
Aknur Karabay wins poster award at XRM 2026
Aknur Karabay receives the XRM 2026 poster award in Campinas, Brazil.
Competing Ordering Modes in the Distorted Quantum Kagome Material Clinoatacamite Cu2Cl(OH)3
We have studied the magnetic properties of clinoatacamite Cu2Cl(OH)3, the parent compound of the quantum spin liquid candidate herbertsmithite and a long-standing puzzle among frustrated quantum magnets ...
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 ...
Enhanced Spin-Reorientation Transition and Polarization in DyFeO3 Thin Films
Materials with a kagome lattice host exotic quantum phenomena driven by the interplay between band topology, spin–orbit coupling, magnetism, and electronic correlations. While the magnetism of kagome materials ...
Unconventional Superconductivity in ScIr2 Chiral Crystal With a Kagome Lattice
Materials with a kagome lattice host exotic quantum phenomena driven by the interplay between band topology, spin–orbit coupling, magnetism, and electronic correlations. While the magnetism of kagome materials ...
Pressure-invariant isotope effect as evidence for electronically driven intertwined order in Pr4Ni3O10
We report muon-spin rotation measurements of the pressure dependence of the oxygen-isotope (16O / 18O) effect on the spin-density wave (SDW) transition in the trilayer Ruddlesden-Popper nickelate Pr4Ni3O10. At ambient pressure ...
Supersampled Scanning Transmission X-ray Microscopy
Researchers from a Swiss-German collaboration have developed a new method for scanning transmission X-ray microscopy substantially reducing the impact of mechanical vibrations and imaging overheads, allowing for routine high-resolution imaging experiments
SDSC and PSI teams jointly explore the AI potential of large-scale infrastructures
Villigen, July 8th, 2026 – To help activate a strategic community around its evolution as a national research infrastructure in data science and AI, the Swiss Data Science Center (SDCS) held a bespoke workshop at the Paul Scherrer Institute (PSI). The event brought together over 30 researchers and data scientists to explore how machine learning (ML) and artificial intelligence (AI) can optimize and accelerate analysis on PSI's large-scale scientific infrastructures. The day featured substantive knowledge exchange and the development of flagship project concepts, aimed at ensuring that ML/AI can empower this vital Swiss facility to advance data-driven science and innovation for the benefit of society.
μSR study of time-reversal symmetry constraints and bulk superfluid response in Li0.95FeAs
We report zero-field (ZF) and transverse-field (TF) muon-spin rotation/relaxation (μSR) measurements on superconducting Li0.95FeAs (Tc ≃ 16.0 K) grown by a high-pressure self-flux method. The ZF-μSR data show ...
Multiple magnetic transitions in the trilayer nickelate Pr4Ni3O10 revealed by muon-spin rotation
A muon-spin rotation/relaxation (µSR) study of the trilayer Ruddlesden–Popper nickelate Pr4Ni3O10 was performed at ambient pressure and under hydrostatic pressure up to 2.2 GPa. Three magnetic transitions were identified ...
Structural characterisation of emerging functional materials: when you need muons and neutrons from across Europe to build a full picture
Researchers from Durham University and colleagues from Rutgers (The State University of New Jersey) and the University of Edinburgh have collaborated with teams from ISIS, the Institut Laue-Langevin (ILL) and the PSI Center for Neutron and Muon Sciences to carry out a full characterisation of the double perovskite Pb2MgReO6.
Polarization contrast neutron imaging enables operando visualization of iron plating in redox flow batteries
Visualizing multiphase (solid–liquid–gas) electrochemical transformations during operation is essential to advancing sustainable energy storage technologies. All-iron redox flow batteries represent a promising candidate ...
Unraveling spin density wave order in layered nickelates La3Ni2O7 and La2PrNi2O7 via neutron diffraction
The observation of pressure-induced superconductivity in two- and three-layer Ruddlesden-Popper nickelates has spurred ...
Confined Room-Temperature Ferromagnetism in Kagome (Fe3Sn2/CoSn) Superlattices
We reveal the presence of robust ferromagnetism in topological kagome (Fe3Sn2/CoSn)×n superlattices via polarized neutron reflectivity (PNR) and magnetization measurements. Using molecular beam epitaxy ...
Impact of disorder on microscopic superconducting and normal-state responses in a Kagome metal
In K(V0.93Ta0.07)3Sb5, Ta substitution suppresses charge order while nearly doubling superconducting transition temperature Tc. Pronounced diffuse scattering reveals a highly disordered charge-ordered state. We investigated the impact ...
When Two Metals Become One
Using synchrotron X-rays and advanced simulations, we reveal how metals mix—and why defects form.
34th international workshop on VERTEX detectors in Switzerland
The 34th International Workshop on Vertex Detectors is organised jointly by PSI, UZH and ETHZ in Stoos, Switzerland.
Thermodynamic Evidence for Pressure-Driven Evolution towards Weak-Coupling Superconductivity in Pb
The thermodynamic critical field Bc provides direct access to the superconducting condensation energy, yet its pressure dependence has been studied much less extensively than that of the transition temperature. Here, muon-spin-rotation relaxation measurements ...
Good things come in threes - Nitrous oxide decomposition on Rh-Ce-Co oxide
ME-XAS reveals a synergic function between Rh oxide species and Co3O4 mediated by Ce that catalyses low temperature N2O decomposition.
Combination of searches for heavy vector boson resonances in proton-proton collisions at √s = 13 TeV
Demand for denser, lower-power data storage keeps rising, yet the metallic magnets behind most memory technologies dissipate energy through electrical currents. Magneto-electric insulators on the other hand offer an alternative...
More than 320\fb of collision data recorded by the CMS experiment during LHC Run 3
On June 29, 2026 the LHC Run 3 ended. For CMS, Run 3 was a real success, with more collision data than ever before (355\fb) delivered to the experiment, with a recording efficiency of 92%.
Intricacies of frustrated magnetism in the Kondo metal YbAgGe
The combination of localized magnetic moments, their frustration and interaction with itinerant electrons is a key challenge of condensed matter physics. Frustrated magnetic interactions ...
Beyond Dzyaloshinskii-Moriya: anisotropy-driven compact spin textures for low-power spintronics
Demand for denser, lower-power data storage keeps rising, yet the metallic magnets behind most memory technologies dissipate energy through electrical currents. Magneto-electric insulators on the other hand offer an alternative...
From Ocean Plankton to Clouds
PSI researchers help uncover a major natural source of cloud-forming particles over the Southern Ocean
Sharpening laboratory X-ray imaging
Full-field transmission X-ray microscopy (TXM) is a powerful, non-destructive technique for nanoscale imaging. It delivers significantly higher spatial resolution than visible light microscopy while enabling the inspection of thick samples that electron microscopy cannot penetrate. By bridging this gap, TXM drives critical advancements across diverse scientific fields, from mapping the internal degradation of energy materials to imaging intact biological cells.
Tomas Aidukas appointed as Assistant Professor at EPF Lausanne
Dr. Tomas Aidukas, was appointed as Assistant Professor of Physics in EPF Lausanne.
Spatial Evolution of Coke in ZSM-5 Catalysts During Methanol-to-Hydrocarbons Conversion Revealed by In Situ X-Ray Photoelectron Spectroscopy
Coking is the central source of deactivation of zeolite catalysts. Using in situ XPS along with complementary methods, we identify differences in the formation kinetics and composition of surface coke on industrially relevant ZSM-5 catalysts during MTH conversion, demonstrating the strong potential of this technique for studying catalyst deactivation due to coking.
Toward Hydrogen Isotope Separations through Strong Hydrogen Adsorption at Open Copper(I) Sites in an Ultramicroporous Metal−Organic Framework
Metal−organic frameworks with coordinatively unsaturated metal sites (open metal sites) capable of engaging in orbital interactions with π-acidic gases are of interest for enabling ambient-temperature gas separations, such as hydrogen isotope separations. In view of the weakly π-acidic nature of H2, we sought...
CMS Labs at the Paul Scherrer Institute
This video shows the labs at the Paul Scherrer Institute (PSI) where we're working on the CMS Tracker Upgrade, Future Detector R&D and CMS and FCC Physics Analysis.
Congratulations to Đorđe Petrovic, PostDoc from ANS group
Đorđe Petrovic, PostDoc from ANS group of LSM was selected as recipient of the FR26 Young Generation Paper Recognition.
When Quantum Magnets Lose Their Sense of Scale
Scale invariance asks whether the same patterns can govern nature across very different lengths, from microscopic matter to large natural structures. Magnets offer one of the cleanest examples: near a critical point, where order disappears, details of the material fade and universal laws take over.
Lord of the data
Stefan Ritt works at the very limits of what can be measured. He has now been awarded the IEEE NPSS Computer Applications in Nuclear and Plasma Sciences Award for creating and leading the MIDAS DAQ system.
Machine learning helps refine aerosol measurement characterization
Machine learning, applied to year-long observations from the Zeppelin Observatory on Svalbard, was capable of refining aerosol chemical characterization specifically those measured with state-of-the-art mass spectrometric techniques.
Surface-confined spiral state with a doubled magnetic period in Cu2OSeO3
Magnetism in solid materials originates from tiny atomic “compasses” called electron spins. In many magnetically ordered compounds, these spins simply align parallel or antiparallel to each other. However, in more complex systems they can arrange into ...
Towards digital twin of an in-situ experiment: a physics-enhanced machine-learning framework for inverse modelling of mass transport processes
Peng et al., 2026
As a prove of concept for experimental geochemistry, an advanced 3D numerical framework, here and after called Digital Twin (DT), of a diffusion experiment conducted at a synchrotron beamline, has been implemented using....
Compositional and structural controls on Fe(III) trapping in LDH phases
Ban et al., 2026
Understanding Fe incorporation in layered double hydroxide (LDH) phases is important for revealing the steel/cement interface interaction in low carbon cement. In this study, synchrotron-based characterization is....
Alkali-Metal Interlocking of 2D V4O10 Sheets Defines Discretized Interlayer Shear Relationships
Low-dimensional materials manifest structural anisotropy, quantum confinement, and tightly bound excitonic states, which make them attractive building blocks that can be assembled within three-dimensional laterally stitched heterostructures, stacked van der Waals solids, and complex moiré superlattices ...
Pore-scale reactive transport modeling of minerals dissolution and precipitation.
Mahrous et al., 2026
With the aim of identifying the strengths and limitations of current reactive transport models in simulating dissolution-precipitation reactions, this work validates experimentally a newly developed pore-scale model. The model is developed....
When Tungsten Meets Steel: Designing Interfaces for Fusion
Additive manufacturing enables new tungsten–steel designs for fusion reactors—but also creates complex microstructures. PSI researchers reveal how phases form and evolve at the interface during processing.
Cascade of Spin Moiré Superlattices with In-Plane Field in Triangular Lattice Semimetal EuAg4Sb2
EuAg4Sb2 is a rhombohedral europium triangular lattice material that exhibits a rich phase diagram of spin moiré superlattices (SMS) and single-q magnetic phases. In this paper, we characterize ...
Experimental observation of short-range magnetic correlations in amorphous Nb2O5 and Ta2O5 thin films
We use muon spin rotation/relaxation/resonance (μSR) to investigate the magnetic properties of niobium pentoxide (Nb2O5) and tantalum pentoxide (Ta2O5) thin films. In both oxides, we observe a magnetic response at the lowest available temperature of 2.8 K ...
Vanishing ordered moment in the frustrated triangular lattice antiferromagnet CuNdO2
The steady decline of neutron imaging (NI) facilities—driven in part by the shutdown of several research reactors—has increased the need to maximize the use of existing infrastructure. In this context, a collaborative effort between PSI-CNM, PSI-NES, and EPFL-LRS has led to the development ...
Collaborative Development of a New Neutron Imaging Beamline at the Zero-Power CROCUS Reactor
The steady decline of neutron imaging (NI) facilities—driven in part by the shutdown of several research reactors—has increased the need to maximize the use of existing infrastructure. In this context, a collaborative effort between PSI-CNM, PSI-NES, and EPFL-LRS has led to the development ...
Preserving film sound in the cold at the British Film Institute: new evidence for archives
Can magnetic film sound be stored in the cold? A collaboration between the British Film Institute and PSI found no detectable damage in the studied samples and points to a broader future for archives, in which laboratory methods and synchrotron techniques at the Swiss Light Source SLS help guide the preservation of complex audiovisual media.
Exploring 3d systems for quantum spin liquids
Using neutron and muon experiments, a team from South Korea, the USA, the Paul Scherrer Institute (PSI), and ISIS investigated the structure under ambient conditions and dynamics of a magnetic field-induced intermediate ...
Bridging in-situ chemical imaging and pore-scale reactive transport modelling: mechanistic insight into CaCO3 polymorph dynamics
Peng et al., 2026
Understanding the growth and dissolution behavior of calcium carbonate (CaCO3) polymorphs is fundamental for studying biomineralization, environmental geochemistry, and reactive transport processes in porous systems. Among numerous carbonate phases, amorphous calcium carbonate (ACC) often plays....