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apr11-offprint-luke-sonier.pdf

Positive muons are sub-atomic particles with a mass roughly 200 times that of a positron, into which they decay with a mean lifetime of 2.2 ms.  Muons are widely applied in studies of superconductors, from studies of magnetic/electronic phase diagrams to detailed investigations of the vortex and Meissner states. Here, we describe experiments on strontium ruthenate and cuprates where muon spin rotation/ relaxation has provided unique information regarding the nature of their respective superconducting states.