Composition dependent magnetic properties of iron oxide - polyaniline nanoclusters
Raksha Sharma, Subhalakshmi Lamba, S. Annapoorni, Parmanand Sharma and, Akihisa Inoue
TL;DR
This study investigates how varying polyaniline content affects the magnetic properties of iron oxide nanoclusters, revealing composition-dependent changes in magnetization and interactions, supported by experimental and simulation data.
Contribution
It introduces a detailed analysis of magnetic behavior in iron oxide-polyaniline nanocomposites with combined experimental and Monte Carlo simulation insights.
Findings
Saturation magnetization decreases with more polymer content.
Presence of chain-like structures at low polyaniline concentrations.
High blocking temperatures indicating strong interactions.
Abstract
Gamma - Iron Oxide prepared by sol -gel process was used to produce nanocomposites with polyaniline of varying aniline concentrations. TEM shows the presence of chain like structure for lower polyaniline concentration. The room temperature hysteresis curves show finite coercivity of 160 Oe for all the composites while the saturation magnetization was found to decrease with increasing polymer content. ZFC - FC magnetisation measurements indicate high blocking temperatures. It is believed that this indicates a strongly interacting system, which is also shown by our TEM results. Monte Carlo simulations performed on a random anisotropy model with dipolar and exchange inteactions match well with experimental results.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.