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
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 ...
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 ...