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SμS: Swiss Muon Source

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SμS: Swiss Muon Source

µSR - Muon Spin Rotation, Relaxation or Resonance: A research tool using muons as sensitive local magnetic probes in matter.
Research at the LMU focuses mainly on magnetic properties of materials and on positive muons or muonium (bound state of a positive muon and an electron) as light protons or hydrogen substitutes in matter.

Worldwide unique: The Low-Energy Muon Beam and µSR Spectrometer for the study of thin films, layers and surfaces, the possibility to perform high-field µSR with a field up to 9.5 Tesla, and the Extraction of Muons On Request for high frequency resolution and slow relaxation measurements.
 


Latest News

5 avril 2022

μSR2020 conference update

The long delayed MuSR2020 conference will run from Monday 29th August to Friday 2nd September, 2022. An in-person meeting is planned, which will be held at the Science and Technology Campus, University of Parma. Invited speakers include Bruce Gaulin, Giacomo Ghiringhelli, Reizo Kato, Ioan Pop, Jorge Quintanilla, Roberta Sessoli, Martin Wilkening and Reiner Zorn

En savoir plus
10 janvier 2022

SμS Call 2022/1 informations

The results of the evaluation of the SμS Call 2022/1 and the beam time schedule will be published mid of March 2022. Resume of HIPA user operation is scheduled to May 2nd, 2022.

 

En savoir plus

Latest scientific SμS highlights:

3 mai 2022
Mielke et al

Low-temperature magnetic crossover in the topological kagome magnet TbMn6Sn6

Magnetic topological phases of quantum matter are an emerging frontier in physics and materials science, of which kagome magnets appear as a highly promising platform. Here, we explore magnetic correlations in the recently identified topological kagome system TbMn6Sn6 using muon spin rotation, combined with local field analysis and neutron diffraction. Our studies identify an out-of-plane ferrimagnetic structure with slow magnetic fluctuations which exhibit a critical slowing down below T*C1 ≃ 120 K and finally freeze into static patches with ideal out-of-plane order below TC1 ≃ 20 K....

 

En savoir plus
21 avril 2022
Gupta et al

Microscopic evidence for anisotropic multigap superconductivity in the CsV3Sb5 kagome superconductor

The recently discovered kagome superconductor CsV3Sb5 (Tc ≃ 2.5 K) has been found to host charge order as well as a non-trivial band topology, encompassing multiple Dirac points and probable surface states. Such a complex and phenomenologically rich system is, therefore, an ideal playground for observing unusual electronic phases. Here, we report anisotropic superconducting properties of CsV3Sb5 by means of transverse-field muon spin rotation (μSR) experiments.

 

En savoir plus
25 mars 2022
Shang et al

Spin-triplet superconductivity in Weyl nodal-line semimetals

Topological semimetals are three dimensional materials with symmetry-protected massless bulk excitations. As a special case, Weyl nodal-line semimetals are realized in materials having either no inversion or broken time-reversal symmetry and feature bulk nodal lines. The 111-family, including LaNiSi, LaPtSi and LaPtGe materials (all lacking inversion symmetry), belongs to this class. Here, by combining muon-spin rotation and relaxation with thermodynamic measurements, we find that these materials exhibit a fully- gapped superconducting ground state, while spontaneously breaking time-reversal symmetry at the superconducting transition.

 

En savoir plus

More SµS Highlights

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LMU and Groups

  • Laboratory for Muon Spin Spectroscopy (LMU)
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User Contacts

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    Provides all information about user research at PSI Large Research Facilities
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Call for Proposals

Next Deadline: June 06, 2022.

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PSI User Facilities Newsletter

Current News from PSI photon, neutron and muon user facilities


NUM Homepage

PSI Division Research with Neutrons and Muons.


Conference Calendar

Conferences related to methods and topics addressed at our user facilities


MuonSources.org

MuonSources.org provides information about muon facilities and muon research worldwide.

ISMS

The International Society for µSR Spectroscopy (ISMS).

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