Marshall Onellion, PhD

Marshall Onellion was an experimental condensed matter physics professor at the University of Wisconsin-Madison.

After completing his BS in mathematics and physics at West Virginia University in 1972, Onellion served in the U.S. Air Force until he was honorably discharged with the rank of Captain in 1979. He then began graduate studies in physics at Rice University, earning his PhD in 1984 before completing postdoctoral research at the University of Texas, Austin and Harvard University. Onellion joined the UW–Madison physics faculty as an assistant professor in 1987.

A condensed matter experimentalist, Onellion established a vigorous research program that primarily utilized the Aladdin ring at the UW-Madison Synchrotron Radiation Center (SRC) located in Stoughton, WI, for innovative studies of correlated electron materials of various types, including high-temperature superconductors, thin films, and magnetic multi-layers. His workhorse experimental tool was angle-resolved photoemission that was ideally suited to the stable and bright UV SRC synchrotron source.

For many years Marshall actively volunteered to work with science students in area high schools, primarily Stoughton High School. In recognition of this outstanding service, in 2000 Marshall received a State of Wisconsin Certificate of Commendation for Public Service from Governor Tommy Thompson.