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Muon spin-relaxation measurements of spin-correlation decay in spin-glass AgMn

Conference ·
OSTI ID:6234740
; ; ; ; ;
The field (H) dependence of the muon longitudinal spin-lattice relaxation rate well below the spin-glass temperature in AgMn is found to obey an algebraic form given by (H)/sup nu-1/, with nu = 0.54 +- 0.05. This suggests that Mn spin correlations decay with time as t/sup -//sup nu/, in agreement with mean field theories of spin-glass dynamics which yield nu less than or equal to 0.5. Near the glass temperature the agreement between the data and theory is not as good.
Research Organization:
Los Alamos National Lab., NM (USA); California Univ., Riverside (USA)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
6234740
Report Number(s):
LA-UR-83-1028; CONF-830455-4; ON: DE83011329
Country of Publication:
United States
Language:
English

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Related Subjects

656000* -- Condensed Matter Physics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANGULAR MOMENTUM
CRYSTAL FIELD
CRYSTAL MODELS
DEPOLARIZATION
EXCHANGE INTERACTIONS
INTERACTIONS
ISING MODEL
MANGANESE COMPOUNDS
MATHEMATICAL MODELS
MUON PROBES
PARTICLE PROPERTIES
PROBES
RELAXATION
SILVER COMPOUNDS
SPIN
SPIN GLASS STATE
SPIN-LATTICE RELAXATION
TRANSITION ELEMENT COMPOUNDS