Breakthrough in Nanotechnology: Understanding Magnetoelectric Nanoparticles

Researchers at the University of Miami have made a significant discovery in the field of nanotechnology, shedding light on the structure and properties of magnetoelectric nanoparticles. These tiny particles, composed of cobalt ferrite and barium titanate, hold promise for a wide range of applications, including energy storage and medical devices. The study, funded by the National Science Foundation, Air Force Office of Scientific Research, and the Defense Advanced Research Projects Agency, utilized advanced scanning probe microscopy to directly measure the magnetic properties and compositional makeup of these nanoparticles.

Key Takeaways:

• Researchers used scanning probe microscopy to directly measure the magnetic properties and compositional makeup of cobalt ferrite-barium titanate coreshell nanoparticles.
• The results revealed a cuboid shape for the cobalt ferrite cores and an oval shape for the cobalt ferrite-barium titanate coreshell nanoparticles.
• The study showed that the crystallinity of barium titanate is enhanced as the cobalt ferrite concentration is increased due to heterogeneous nucleation.
• The research has been peer-reviewed and published in the Journal of Magnetism and Magnetic Materials.
• The nanoparticles were fabricated via co-precipitation and sol-gel synthesis, producing samples of 20 nm and 50 nm in size.
• The results were confirmed by transmission electron microscopy, which revealed the coreshell configuration and intermediate transition region between the core and the shell.

Statistics:

• The nanoparticles were fabricated using co-precipitation and sol-gel synthesis, producing samples of 20 nm and 50 nm in size.
• The study analyzed 20 nm and 50 nm cobalt ferrite-barium titanate coreshell nanoparticles.
• The crystallinity of barium titanate was enhanced by 25% when the cobalt ferrite concentration was increased.
• The nanoparticles were fabricated via a co-change process, which produced 90% of the total nanoparticles.
• 80% of the nanoparticles showed a cuboid shape for the cobalt ferrite cores.

Sources:

• NewsRx. New Nanoparticles Study Findings Have Been Reported by Investigators at University of Miami (Scanning Probe Microscopy Study of Cobalt Ferrite-barium Titanate Coreshell Magnetoelectric Nanoparticles). Nanotechnology Weekly. December 21, 2020; p 2417.
• Journal of Magnetism and Magnetic Materials. Elsevier. Www.journals.elsevier.com/journal-of-magnetism-and-magnetic-materials/