Detection of EPR Transitions of Muonium in Quartz by Muon-Spin Rotation

Abstract
Magnetic resonance transitions of muonium in quartz have been detected by their effect on muon-spin-rotation frequency spectra. This technique can be used to observe EPR transitions which are not directly observable in the normal muon-spin-rotation spectrum. The coherence effects of an intense rf magnetic field on two strongly coupled spins are decribed theoretically and are found to explain the data in detail.