Evidence for power-law spin-correlation decay from muon spin relaxation in AgMn spin-glass

Journal Article · Mon Sep 05 04:00:00 EDT 1983 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.51.927· OSTI ID:5558987

MacLaughlin, D E; Gupta, L C; Cooke, D W; Heffner, R H; Leon, M; Schillaci, M E

Muon spin relaxation measurements have been carried out below the ''glass'' temperature T/sub g/ in AgMn spin-glasses. The muon spin-lattice relaxation rate varies with field H as H/sup -0.46plus-or-minus0.05/ for 0.30< or =T/T/sub g/< or =0.66. This suggests that impurity-spin correlations decay with time as t/sup -nu/, ..nu..approx. =0.54 +- 0.05, in contrast to the more usual exponential decay. The present data therefore agree quantitatively with the prediction ..nu..approx. =(1/2) of mean-field dynamic theories.

• Research Organization: University of California, Riverside, California 92521
• OSTI ID: 5558987
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 51:10; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals &amp; Alloys-- Physical Properties
ALLOYS
CRITICAL TEMPERATURE
DATA
EXPERIMENTAL DATA
INFORMATION
ISOTHERM
MAGNETIC FIELDS
MANGANESE ALLOYS
MANGANESE BASE ALLOYS
MUON PROBES
NUMERICAL DATA
PHYSICAL PROPERTIES
PROBES
RELAXATION
SILVER ALLOYS
SPIN GLASS STATE
SPIN-LATTICE RELAXATION
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
VARIATIONS