Neutron and X-Ray Scattering

Neutron and X-ray Scattering Science Recent advances in neutron and x-ray scattering instrumentation at major DOE facilities such as the Spallation Neutron Source and Advanced Photon Source provide unprecedented insights into complex phenomena in bulk and interfacial materials. The vision of our group is to harness the complementarity of neutrons and x-rays to study how materials respond on a range of length and time scales to phase competition, so that we can learn to control emergent behavior and generate functional properties in energy-related materials.

We use neutrons and x-rays to investigate the structure and dynamics of bulk and interfacial materials with properties that are useful for energy applications, such as superconductivity, magnetism and thermoelectricity. Phase competition can generate or enhance such properties, but it is extremely challenging to characterize fluctuations in the competing order, whether in bulk disordered materials, or artificial heterostructures. Our goal is to utilize efficient techniques that we have been developing for measuring nanoscale phase fluctuations, both static and dynamic, to enable the rational design of new materials for energy within MSD.


News

Congratulations to Matthew Krogstad for winning the Oustanding Student Poster prize in hard condensed matter  at the 2016 American Conference on Neutron Scattering

Congratulations to Keith Taddei for successfully defending his Ph.D!

Keith Taddei is awarded the 2015 Margaret Etter Student Lecturer Award, American Crystallographic Society (August 2015)

Suzanne te Velthuis elected Fellow of the American Physical Society (2014)


Research Highlights

Observation of the skyrmion Hall effect; see also Nature Physics News & Views

Double-Q Spin-Density-Wave in Iron Arsenides

Blowing Magnetic Skyrmion Bubbles; see also DOE BES highlight

Unraveling the origin of the pseudogap in a charge density wave compound

Suppression of Nematic Order in the Iron-Based Superconductors; see also DOE BES highlight

Argonne scientists prove unconventional superconductivity in new iron arsenide compounds


Publications