Correlation lengths and times in CuMn spin glasses from simulation and experiment
Fenimore, Paul Woodside
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https://hdl.handle.net/2142/30878
Description
Title
Correlation lengths and times in CuMn spin glasses from simulation and experiment
Author(s)
Fenimore, Paul Woodside
Issue Date
1999
Doctoral Committee Chair(s)
Weissman, Michael B.
Department of Study
Physics
Discipline
Physics
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
spin glasses
Language
en
Abstract
Simulations, field-dependent aging and measurements of finite-size effects are used to study correlation lengths and times of Cul-xMnx spin glasses. Several results are found: a single model inspired by the Parisi solution explains both the experimentally observed aging and equilibrium fluctuation
phenomena in Cul-xMnx, and as one expects the fluctuation dynamics in and out of equilibrium are model dependent; field-dependent aging gives a novel size-scale in Cul-xMnx, and finite-size effects in single layers of Cul-xMnx are consistent with previously observed 3-dimensional finite-size
scaling in multi-layer samples.
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