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   COLLOQUIUM OF THE LABORATORY FOR COMPUTER DESIGN OF MATERIALS
                   School of Computational Sciences
                           (CSI 898-Sec 001)
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           NANOMAGNETISM: FOUNDATIONS FOR THE NEXT GENERATION

                            Robert D. Shull
                     Magnetic Materials Group
National Institute of Standards and Technology, Gaithersburg, Maryland

Nanocrystalline materials can possess bulk properties quite different from
those commonly associated with conventional large-grained materials.
Nanocomposites, a subset of nanocrystalline materials, in addition have been
found to possess magnetic properties which are similar to, but different from,
the properties of the individual constituents.  New magnetic phenomena,
unusual property combinations, and both enhanced and diminished magnetic
property values are just some of the changes observed in magnetic
nanocomposites from conventional magnetic materials.  Here, a description will
be presented of some of the exciting new properties discovered in
nanomaterials and the magnetic applications envisioned for them.  Particular
attention will be devoted to three world-leading activities in this area at
NIST being pursued in the Magnetic Materials Group: the preparation of GMR
spin valves having the world's highest MR values with the smallest
switching fields, the prediction and discovery of the "Enhanced Magnetocaloric
Effect" in magnetic nanocomposites, and the development and application to
magnetic exchange-biased films of the magneto-optic imaging film (MOIF)
technique for magnetic domain imaging.  These activities are assisting the
rapid development of ultra-high density magnetic recording media, high
temperature magnetic refrigerators, and controllable magnetic switches.

                         November 14, 4:30 pm
               Room 206, Science & Tech. I, Fairfax Campus

Refreshments will be served at 4:15 PM.
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Find the schedule at http://www.scs.gmu.edu/lcdm/seminar/schedule.html
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