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    COLLOQUIUM OF THE LABORATORY FOR COMPUTER DESIGN OF MATERIALS
        Institute for Computational Sciences and Informatics
	                      CSI 898-Sec 001  
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                   Unusual Magnetism on Surfaces

			   Stephen Hellberg
Center for Computational Materials Science, Naval Research Laboratory           

	The modern theory of electrons at surfaces is discussed, with 
emphasis on the interactions between electrons.  On surfaces, the 
reduced dimensionality naturally enhances the effects of the interactions,
sometimes leading to the formation of novel phases. I will discuss recent 
experiments on a family of triangular surface lattices, and present 
calculations indicating the formation of an unusual magnetic order on 
these surfaces.

	                 Monday , April 12 1999
                                 4:30 pm
                        Room 206, Science & Tech. I

Refreshments will be served.
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(http://www.csi.gmu.edu/lcdm/seminar/schedule.html)