It is known that a system comprised of fine magnetic particles exhibits ‘spin-glass-like’ behaviour. Techniques like SANS, VSM, ESR, Mossbauer are used to study such systems. Which technique is better suited for such study
AC susceptibility is one of the simple and best way to characterize the spin glasses.
Dear Prof. Mehta
Different methods have been used for spin glass characterization. successful results can be obtained from frequency dependent behavior of Ac magnetic susceptibility measurements and using critical slowing down model. Also field cooling and zero field cooling magnetization can be useful. But in my opinion the most successful method for determining the spin glass state in a material is Aging and memory effect magnetization measurements.
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