Co3O4 nanoparticles are currently being studied for their antiferromagnetic properties. Since traditional solution-based methods involve the use of hazardous chemicals, and can have hazardous by-products, researchers have begun synthesizing nanoparticles using environmentally benign methods such as by using bacteria and proteins. Additionally, nanoparticles produced from biological medium tend to have highly-uniform size and shape. This is an important factor because nanoparticles’ morphology is intrinsically related to their magnetic properties such as magnetic anisotropy, blocking temperature and Néel temperature. Antiferromagnetic nanoparticles have a wide array of potential applications; some are in use currently as MRI contrast agents, while some researchers are exploring their use in battery technology and spintronics computing. The goal of this project is to explore the relationship between morphology of the Co3O4 nanoparticles and their Néel temperature, blocking temperature, and anisotropy. The presentation will focus on detailing the synthesis conditions required to produce specific morphologies. Establishing a correlation between morphology and magnetic properties should aid in fine-tuning the aforementioned applications.

Investigation of antiferromagnetic properties of Co3O4 nanoparticles produced via bacterial medium

2019 Spring National Meeting

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