Mu Sup + SR in Amorphous Spin Glasses Pd sub 75 Fe sub 5 Si sub 20 and Pd sub 75 Fe sub 5 P sub 5

摘要

The zero-field muon spin relaxation function G/sub zz/(t) has been measured as a function of reduced temperature t = T/T/sug g/ in the amorphous metallic spin glasses Pd sub 75 Fe sub 5 Si sub 20 and Pd sub 75 Fe sub 5 P sub 20 . The results are in qualitative agreement with earlier measurements on dilute alloy spin glasses, including an onset of static order below T/sub g/ and a (t/(t - 1)) sup 2 dependence of the correlation time tau/sub c/ above T/sub g/. Both samples have the same tau/sub c/(t) above T/sub g/ and almost identical static width delta /sub s/ -> delta sub 0 approx. = 43 mu s sup -1 ) as T -> 0, but the t-dependence of delta /sub s/ near T/sub g/ differs markedly. (ERA citation 11:054155)