Centre for Molecular and Materials Science


The Centre for Molecular and Materials Science (CMMS) provides unique tools for Canadian and international scientists to better understand matter at the microscopic level. We provide intense spin-polarized beams of muons (µ+ or µ) and lithium-8 (8Li), which are implanted into a material and characterized with novel magnetic resonance techniques known as µSR (muon spin rotation / relaxation / resonance) and βNMR (beta-detected nuclear magnetic resonance). µSR and βNMR can provide unique information about a wide range of materials (magnetic systems, superconductors, semiconductors, batteries and free radicals) that is unavailable with conventional spectroscopic methods.

Recent Highlights

β-NMR Investigation of the Depth-Dependent Magnetic Properties of an Antiferromagnetic Surface
D. L. Cortie et al.
Phys. Rev. Lett. (2016) 116, 106103

Spin Fluctuations from Hertz to Terahertz on a Triangular Lattice
Y. Nambu et al.
Phys. Rev. Lett. (2015) 115, 127202

Nanoscale β-nuclear Magnetic Resonance Depth Imaging of Topological Insulators
D. Koumoulis et al.
PNAS (2015) 112, E3645

Next beam-time requests due: June 23, 2016


  • CMMS will no longer be charging user fees for academic researchers. The charge of $1.75 per litre of liquid helium remains.

  • The NuTime spectrometer magnet has been commissioned.The magnetic field homogeneity is greatly improved over HiTime with 1.3 ppm over a disc of ± 2.5 mm in the z-direction and ± 5 mm in the x- and y-directions.

  • The procedures for visiting scientists have been changed. Please contact to request an invitation. Once you have received the invitation you must fill in your details on the Visitor App. Group leaders will be able to invite subordinates. Your training status can be found here. You must review the safety orientation before site access is permitted. You must have valid Personnel Safety Alarms and Basic Radiation Protection training before coming to TRIUMF. A further hands-on test is required to access exclusion areas.


Applying for Beamtime

Facility Resources

Running Experiments

Centre for Molecular and Materials Science
4004 Wesbrook Mall
Vancouver, B.C. Canada V6T 2A3