Scattering and Instrumentation Sciences
Core Research Areas: X-ray
Scattering, Neutron
Scattering, Electron
and Scanning Probe Microscopies, and Ultrafast
Science and Instrumentation.
This activity encompasses basic research in condensed matter physics
and materials physics using electron, neutron, and x-ray scattering capabilities. Research
includes experiment and theory that seeks to achieve a fundamental understanding
of the atomic, electronic, and magnetic structures and excitations of materials as
well as the relationship of these structures and excitations to the physical
properties of materials. Also supported is the study of fundamental
dynamics in complex materials, correlated electron systems, nanostructures,
and novel systems using advanced ultrafast spectroscopy, diffraction
and microscopy. The emphasis is on using time-domain approaches
to provide new understanding of complex behavior, emergent phenomena,
and exotic properties in condensed matter. Another increasingly
important aspect is the study of the nature of materials at the
nanoscale including ordering fluctuations, and the structure and
composition of inhomogeneities such as defects, interfaces, surfaces,
and precipitates.
Advancing the state of the art of electron beam and scanning probe
techniques and instrumentation for quantitative microscopy and
microanalysis is an essential element in this portfolio. The increasing complexity of energy-relevant
materials such as superconductors, semiconductors, and magnets requires continuing
development and improvement of next-generation x-ray and neutron scattering instrumentation
for characterizing the atomic, electronic, and magnetic structures of these materials. This
includes a full range of elastic, inelastic, and imaging techniques
as well as ancillary technologies such as novel detectors, sample
environment, data analysis, and technology for producing polarized
neutrons.