Preparation and characterization of hard magnetic films
Dr. Nora Dempsey
Grenoble, France
Date & Time: 10:30 - 11:30, February 25th (Thu), 2016.
Place: 8F Medium Seminar Room(#811-812), Sengen
Abstract:
The growing demand for high performance hard magnets for clean energy technologies (hybrid electric vehicles, gearless wind turbines…) is driving research related to improved understanding and improved processing of RE-TM magnets. Films serve as model systems to study the relationship between extrinsic properties and microstructure. In this talk I will present recent results from our group at Institut Néel concerning the preparation and characterization of RE-TM films. I will speak about the development of high coercivity Magnetic Force Microscopy tips and their use in the characterisation of the magnetic microstructure of hard magnetic films under static magnetic field. I will also present a Scanning Magneto-Optic-Kerr-Effect system using high intensity pulsed magnetic fields that we are developing in collaboration with the Universidade Federal do Parana (Curitiba, Brazil), for the high-throughput characterisation of compositionally graded films.