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 1/2027, December 01, 2026.
- The 2nd call (2/2026) for the year 2026 is closed.
- Note: Allocation period for call 2/2026: October 2026 - December 2026.
- Note: Allocation period for call 1/2027: June 2027 - September 2027.
- 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
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.