Peter Littlewood, a Cambridge University-trained British physicist and associate director at the lab since 2011 takes over for Eric Isaacs, effective April 1.
One of 10 national labs run by the Department of Energy's (DOE's) Office of Science, Argonne has an annual budget of $722 million and a staff of 3350, according to Science Insider.
Littlewood becomes the 13th director of the nation's oldest national lab, founded in 1946 by Nobel laureate Enrico Fermi. He previously served as associate director for physical sciences and engineering and a professor of physics at U of C.
He also previously served for 6 years as director of the Cavendish Laboratory at the University of Cambridge in the United Kingdom. He then moved on to Bell Labs from 1980 to 1997, eventually heading the lab's theory division.