Observation of superspin glass state in magnetically textured ferrofluid (gamma-Fe2O3)

Abstract

Magnetic properties in a magnetically textured ferrofluid made out of interacting maghemite (gamma-Fe2O3) nanoparticles suspended in glycerin have been investigated. Despite the loss of uniform distribution of anisotropy axes, a superspin glass state exists at low temperature in a concentrated, textured ferrofluid as in the case of its non-textured counterpart. The onset of superspin glass state was verified from the sample's AC susceptibility. The influence of the anisotropy axis orientation on the aging behavior in the glassy states is also discussed.

References in corpus (5)

• Aging and Memory Effects in Superparamagnets and Superspin Glasses
• Spin glass behavior in an interacting gamma-Fe2O3 nanoparticle system
• Extraction of the Spin Glass Correlation Length
• Spin Anisotropy and Slow Dynamics in Spin Glasses
• Growth of a dynamical correlation length in an aging superspin glass

Cited by in corpus (5)

• Experimental Evidence of Fluctuation-Dissipation Theorem Violation in a Superspin Glass
• Real spin glasses relax slowly in the shade of hierarchical trees
• Dynamic Correlation Length Growth in Superspin Glass: Bridging Experiments and Simulations
• Anisotropy-axis orientation effect on the magnetization of γ-Fe2O3 frozen ferrofluid
• Superspin glass aging behavior in textured and nontextured frozen ferrofluid