A muon spectroscopy investigation of the glass forming system 6LiCl-6H 2O

We present the results of the analysis of muon spectroscopy measurements of the aqueous solution LiCl-6H ₂O. In this good glass former two species can be observed after muon implantation: MuOH (diamagnetic species) and muonium (Mu) (paramagnetic species). The characterization of the species and the evolution of their fractions with field and temperature have been determined. The first results show that the diamagnetic amplitude is larger in longitudinal field than in transverse field setup. It is found also that the total fraction (Mu plus MuOH) versus field for various temperatures shows a crossover at 400 G. Some hypotheses explaining this behaviour are made. For the MuOH species, correlation times have been determined and related to those obtained by a previous NMR experiment.