Michigan Technological University

Department of Physics

is pleased to announce a

Colloquium

 

with

 

 

Peter M. Hoffmann

Assistant Professor

Wayne State University

Dept. of Physics and Astronomy

 

 

 

“Touching Atoms and Squeezing Molecules:

Nanomechanics and Atomic Force Microscopy”

 

 

Forces play a fundamental role in physics, and the realm of nanotechnology is no exception. From ordering in confined liquids to atomic manipulation, the measurement of minute forces goes a long way to understanding basic phenomena at the nanoscale and designing practical nanostructures.  Atomic Force Microscopy (AFM) is the instrument of choice to explore, measure, apply, and image forces from the atomic to micrometer scale.  Recent advances in AFM have led to atomic (and even sub-atomic) resolution imaging, measurement of spontaneous ordering of confined water molecules, and the detection of tiny energy losses due to the motion of single atomic defects.  An introduction to AFM and an overview over some of the most exciting research in the field will be provided.  Finally, current and future research at the Nanomechanics Lab in the Department of Physics at Wayne State University will be presented, which includes measuring forces during atomic manipulation, exploring the nanomechanics of biomolecules, and the 3D mapping of fields and potentials in electronic nanostructures.

 

 

 

 

Thursday, April 18, 2002

4:00 p.m., Fisher Hall 139

Refreshments will be available