Past and Future Distinguished Lectures

Wednesday, December 7, 2016 - 3:00pm
Freezing on a Sphere
Professor Paul Chaikin
Julius Silver Professor of Physics at New York University
Location: Molecular Science and Engineering Building, Auditorium G011

Melting in two dimensions is characterized by the thermal excitation and proliferation of free topological defects, disclinations and dislocations which destroy the rigidity of the crystal. This freezing/melting process has been well established for flat systems, but on a sphere, topology requires that there must be a net 12 pentagons (1/2 disclinations) i.e., the 12 pentagons on a soccer ball, and energetically it is favorable to screen the pentagons with strings of dislocations (pentagon-heptagon pairs) known as “scars”. We find that freezing on sphere proceeds by the formation of a single, encompassing, crystalline “continent” that forces the defects into 12 isolated “seas” with icosahedral symmetry.

Event Contact: Sharon Lawrence (
Monday, November 7, 2016 - 11:30am
Professor Eric Baer
Case Western Reserve University
Location: Variable, see Details

A series of lectures in modern nanostructural polymer science and it's applications. Please note the dates and times of the individual lectures: Lecture 1: November 7, 12:00 PMLayered and Fibrillar  Polymeric Systems by NanoExtrusion - Forced Assembly”; Lecture 2: November 8, 1:30 PMNew Polymeric NanoSystems - Lessons from Nature and Hierarchical Structures”; and Lecture 3: November 9, 3:00 PMApplications for New Nanolayered Composites and Membrane Filters”.

Event Contact: Sharon Lawrence (
Wednesday, October 19, 2016 - 3:00pm
Spatially Resolved Electron Energy Loss Spectroscopy: Nanoscale Dynamic Response from Phonons to Core Excitations
Professor Philip E. Batson
The University of New Jersey, Piscataway NJ
Location: Marcus Building, Room 1117

Many recent studies have been enabled by the Scanning Transmission Electron Microscope, (STEM) that can produce an Angstrom-sized probe of keV electrons to access both bulk, surface and "aloof" excitations within structures ranging from atomic to molecular to nanoscale in size. I will discuss a little history, some surprising results from my involvment in the field, and speculate on the future potential for this technique.

Event Contact: Jennifer Curtis ( or Mike Filler (