Dynamics in canonical spin glasses observed by muon spin depolarization
IA Campbell, A Amato, FN Gygax, D Herlach… - Physical review …, 1994 - APS
IA Campbell, A Amato, FN Gygax, D Herlach, A Schenck, R Cywinski, SH Kilcoyne
Physical review letters, 1994•APSMuon spin depolarization has been studied in moderately concentrated AgMn and AuFe
alloys from the freezing temperature T g up to 300 K. The muon depolarization function can
be analyzed to show that the temperature dependence of the strongly nonexponential form
of the local spin autocorrelation function in these canonical alloys is similar to that observed
in numerical simulations on Ising spin glasses. The dynamical behavior above T g appears
to be an intrinsic precursor to spin glass freezing.
alloys from the freezing temperature T g up to 300 K. The muon depolarization function can
be analyzed to show that the temperature dependence of the strongly nonexponential form
of the local spin autocorrelation function in these canonical alloys is similar to that observed
in numerical simulations on Ising spin glasses. The dynamical behavior above T g appears
to be an intrinsic precursor to spin glass freezing.
Abstract
Muon spin depolarization has been studied in moderately concentrated AgMn and AuFe alloys from the freezing temperature T g up to 300 K. The muon depolarization function can be analyzed to show that the temperature dependence of the strongly nonexponential form of the local spin autocorrelation function in these canonical alloys is similar to that observed in numerical simulations on Ising spin glasses. The dynamical behavior above T g appears to be an intrinsic precursor to spin glass freezing.
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