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CMMS

Centre for Molecular and Materials Science


Next Proposal Deadline: May 2013

About CMMS


The goal of the Centre for Molecular and Materials Science (CMMS) is to provide tools for scientists to better understand matter at the microscopic level.

We provide intense spin-polarized beams of muons (µ+ or µ-) and lithium-8 (8Li+). These radioactive probes 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).

The CMMS facility was created to provide access for Canadian and international researchers to these powerful spectroscopic tools.

The Facility acquires, improves, and maintains a great variety of equipment with the aim to provide the the widest range of capabilities possible with the greatest interoperability and the least hassle. Facility personnel will set up the magnets, cryostats, counters, and electronic logic for an experiment. They are happy to consult in experiment design and apparatus upgrades.

 

 

Research Highlights


Nature of Weak Magnetism in SrTiO3/LaAlO3 Multilayers

5 Jan 2013

βNMR has been used to detect weak magnetism in superlattices of LaAlO3/SrTiO3

See TRIUMF Highlight

Salman et al. Physical Review Letters 109, 257207 (2013)

Magnetic phase diagram of (Sr,Ca)2RuO4

8 Feb 2012

The Luke (McMaster) and Uemura (Columbia) collaboration have used µSR to map out the magnetic phase digram of (Sr,Ca)2RuO4. The ground state has static magnetic order over nearly the entire range of (Ca, Sr) substitution and the magnetic phase diagram establishes the proximity of superconductivity in Sr2RuO4 to competing static magnetic order.

Carlo et al. Nature Materials, 11, 323 (2012)

No evidence for 'Magnetricity'

5 October 2011 

A team of researchers using the M15 beam line have found no evidence for previously reported magnetic monopoles in the spin ice material Dy2Ti2O7 (Bramwell et al. Nature 461 956 (2009)).

Dunsiger et al. Physical Review Letters 107, 207207 (2011)


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