John Freeland (SIMES Seminar)

Date(s) - Apr 29 2016
11:00 AM - 12:00 PM

Sierra Room, Bldg 40, Room R125


Exploring Non-Equilibrium Phases of Complex Oxide Heterostructures

 John W. Freeland

X-ray Science Division, Argonne National Laboratory


Functional oxides based on the transition metal series display a wide spectrum of remarkable electronic properties including magnetism, superconductivity and metal-insulator transitions, which offer potential important properties for practical applications including colossal responses to external fields, switchable conductivity, and efficient energy conversion. However, under these conditions for application, these systems tend to be driven far away from the equilibrium ground-state. In order to harness these materials for the future, one of the grand challenges is to understand how to map the non-equilibrium phase space both to seek conditions where new states emerge but also as a basis for the design of materials that will help meet the energy needs of the future. In this talk, I will touch on recent work ranging from optical excitation to catalysis to watching how materials grow as an introduction to how some of the forefront X-ray tools are helping us to scratch the surface of this problem.

Work at Argonne is supported by the U.S. Department of Energy, Office of Science, under Contract No.  DE-AC02-06CH11357.


Image accompanying announcement of Freeland seminar 4/29/16