Superspin glass aging behavior in textured and nontextured frozen ferrofluid

Details Superspin glass aging behavior in textured and nontextured frozen ferrofluid Superspin glass aging behavior in textured and nontextured frozen ferrofluid

2010-09-14

arxiv.org/abs/1009.2609v1

MMM-Intermag Conference, United States (2010)

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1063/1.3366615

The effect of magnetic anisotropy-axis alignment of individual nanoparticles on the collective aging behavior in the superspin glass state of a frozen ferrofluid has been investigated. The ferrofluid studied here consists of maghemite nanoparticles (\gamma-Fe2O3, mean diameter = 8.6 nm) dispersed in glycerin at a volume fraction of ~15%. The low temperature aging behavior has been explored through 'zero-field cooled magnetization' (ZFCM) relaxation measurements using SQUID magnetometry. The ZFCM response functions were found to scale with effective age of the system in both textured and non-textured superspin glass states, but with markedly different scaling exponents, \mu. The value of {\mu} was found to shift from ~0.9 in non-textured case to ~ 0.6 in the textured case, despite the identical cooling protocol used in both experiments.

Affiliated with

Also associated with

No associations

Rating

Superspin glass aging behavior in textured and nontextured frozen ferrofluid does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Superspin glass aging behavior in textured and nontextured frozen ferrofluid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superspin glass aging behavior in textured and nontextured frozen ferrofluid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-395718