Condensed-Matter Physics & Materials Science Seminar

"Resonant inelastic X-ray scattering on "moderately correlated" quantum materials"

Presented by L. Andrew Wray, New York University

Thursday, June 22, 2017, 1:00 pm — ISB Bldg. 734 Conf. Rm. 201 (upstairs)

The resonant inelastic X-ray scattering (RIXS) technique is best known for significant breakthroughs in the investigation of strongly correlated materials such as cuprates. However, the rapid advancement of RIXS spectrographs has made it increasingly attractive to apply the technique to a broad range of quantum materials outside of this comfort zone. This talk will review lessons learned from our recent measurements on material systems that feature a balance of correlated and itinerant physics, including VO2, the hidden order compound URu2Si2, and Prussian blue analogue battery electrodes. RIXS spectra enable the first observation of important collective modes for these systems, and provide a look into how correlated electron symmetries are melted - or persist! - in relatively itinerant and covalent environments. The data also highlight the need for improved theoretical modeling and higher photon throughput to achieve deeper insights.

Hosted by: Mark Dean

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