2 research outputs found
The pseudoâbrookite spinâglass system studied by means of muon spin relaxation
Zero-field muon spin relaxation (”SR) experiments have been performed on the spin glass Fe1.75Ti1.25O5. Above the spin-glass temperature of 44 K a distinct exponential ”SR rate (Âż) is observed, while below Tg a square-root exponential decay occurs, indicating fast spin fluctuations. Near 8 K, a maximum in Âż is indicative of transverse spin ordering. The low Âż values and the sharp Âż peak at Tg are very promising for the study of spin freezing models like the VogelâFulcher law or the power law