Dr. Georgia C. Papaefthymiou-Davis
Massachusetts Institute of Technology
Francis Bitter Magnet Laboratory
The Science and Technology of Magnetic Nanostructures
Abstract:
Magnetic nanostructures lie at the interface of science and technology.
Their study can address fundamental questions in nanoscale physics and can
lead to exciting new applications in the rapidly growing industries of
nanotechnology. New experimental approaches to the synthesis, isolation and
stabilization of magnetic nanostructures will be described.
Micromagnetic studies and dynamic spin-relaxation measurements on a
variety of iron based nanostructures and nanocomposite materials will be
presented. The results will be discussed in the context of quantum-size,
surface and interfacial effects in the observed magnetic behavior and their
advantageous use in the development of tailored magnetic systems by
molecular design, microstructure and interface manipulation in magnetic
nanocomposites. Superparamagnetic blocking temperatures, magnetic anisotropy
constants and low temperature coercivities will be determined and
implications for the internal spin-structure and spin-reversal mechanisms in
nanometer-sized single-magnetic-domain particles will be discussed.
Oceans & Physics
Room 200
Refreshments: 2:30 p.m.
Presentation: 3:00 p.m.
More details including maps, see
http://www.physics.odu.edu/
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