A comparative muon spin relaxation (μSR) study of titanium and yttrium dihydrides

Arrhenius Jump Rate of Muons in Some Non-Stoichiometric Metallic and Intermetallic Hydrides

“…Muon diffusion in YH2 has been studied over the temperature range 16-600 K [15] and is found very similar to the hydrogen diffusion. Like the hydrogens, the muons are static at low temperatures and can diffuse at high temperatures.…”