Muon spin rotation (μSR) detected electron spin echo envelope modulation (ESEEM)

The recently developed method of NOVEL, in which very rapid cross polarization between electron spins and nuclear spins is induced, is proposed to be extended to the field of mu-SR. This would provide a method to unravel the ESR and ESEEM spectra of muonated radicals. The proposal is backed up by an experiment in a molecular crystal, where the ESEEM spectrum of an excited triplet state is observed indirectly via NMR.