Physics Colloquium: Different ways in improving magnetic properties of rare-earth elements based permanent magnets

Rare-earth elements based magnets have low Curie temperature (Tc). Many efforts have been made to improve properties of these permanent magnets. Making intermetallic (R2Fe17) with suitable doping with metals and non-metals atom for Fe or inserting interstitials atoms that can change lattice site and can significantly increase in curie temperature. In this presentation, I will talk about various methods used in my research to improve the curie temperature, coercivity and magnetization of rare-earth based permanent magnets and ceramics magnets to use them for high temperature applications.

Dr. Jiba Nath Dahal is a visiting assistant professor in the Department of Physics at Georgia Southern University. He did his Ph.D. from University of California Merced in 2018 before he joins the Georgia Southern. Dr. Dahal also completed his master’s in Physics and Material Science from the University of Memphis Tennessee in 2013 and M.Sc. in condense mater physics from Tribhuvan University, Nepal in 2007. His current research is in permanent magnets, magnetic nanoparticles and magnetic nanocomposite, low temperature plasma physics and developing device level model for field assisted microplasmas.