April 25, Department of Physics Colloquium

University of Wisconsin-Milwaukee
Dept. of Physics


Probing Complex Materials One Atom at a Time
by a Combination of Theory and Microscopy

 Sokrates T. Pantelides
University Distinguished Professor of Physics and Engineering
Dept. of Physics and Astronomy  &
Dept. of  Electrical Engineering & Computer Science
Vanderbilt University
Materials Science and Technology Division
Oak Ridge National Laboratory

Friday,  25 April 2014
3:00 p.m.  (coffee/cookies at 2:45 PM)

Physics – Room 135

Calculations based on density functional theory using high-performance computers have made enormous strides in describing the atomic-scale properties of complex materials. In parallel, aberration-corrected scanning transmission electron microscopy has reached extraordinary levels of spatial and energy resolution, in both imaging and electron-energy-loss spectroscopy. The combination of theory and microscopy provides an unparalleled probe to unravel the atomic-scale processes that control vital properties for electronic, optoelectronic, and energy-related applications.

You are invited to a journey through the wide world of complex materials structures – semiconductors, superconductors, complex oxides, graphene, ultrasmall nanoparticles – for a first-hand experience of the nanoscale.

Research supported by DOE Basic Energy Sciences; primary collaborator:  Steve Pennycook (formerly at ORNL).