The PSI Laboratory for Muon Spin Spectroscopy uses the fundamental particles from the Swiss Muon Source SµS to investigate matter and materials.
Call for Proposals
Next Deadline: Call II/2025 June 01, 2025.
- The 1st call (I/2025) for the year 2025 is closed.
- Note: Allocation period for call I/2025: June 2025 - September 2025.
- Note: Allocation period for call II/2025: October 2025 - December 2025.
- Experiment schedules
The technique "µSR" - Muon Spin Rotation, Relaxation or Resonance
A research tool using muons as sensitive local magnetic probes in matter.
Worldwide unique instruments:
The Low-Energy Muon (LEM) beam and µSR Spectrometer for the study of thin films, layers and surfaces;
the high-field instrument (HAL-9500) equipped with specially designed detectors to perform studies in fields up to 9.5 Tesla and at very low temperatures;
and the combination of very-high pressures (up to 2.8 GPa) combined with sub-Kelvin temperatures (GPD).
Lab News & Scientific Highlights
IMPACT: Upgrade an PSI-Forschungsanlage beschlossen
Die Finanzierung der Umbauten an der Protonenbeschleunigeranlage des PSI wurde vom Schweizer Parlament bewilligt.
Origin of the Suppression of Magnetic Order in MnSi under Hydrostatic Pressure
We experimentally study the evolution of the magnetic moment 𝑚 and exchange interaction 𝐽 as a function of hydrostatic pressure in the zero-field helimagnetic phase of the strongly correlated electron system MnSi. The suppression of magnetic order at ≈1.5 GPa is shown to arise from the 𝐽 collapse and not from a quantum fluctuations induced reduction of 𝑚. Our work provides benchmarks ...
IMPACT für die Schweizer Gesellschaft
Weltspitze bei den Myonen und in der Herstellung medizinischer Radionuklide: Die weitreichende Bedeutsamkeit des geplanten Upgrades.