High-Throughput Soft X-Ray RIXS for Energy Sciences

- a workshop of 2016 Advanced Light Source Users Meeting

Organizers: Wanli Yang, Jinghua Guo, Yi-de Chuang, Zahid Hussain (ALS)

Time: October 5, 8:50AM - October 5, 18:00PM 2016 (PCT)
Location: Lawrence Berkeley National Laborotary (View Map)
Conference Room: LBNL Building 15, Conference Room 253

RIXS (resonant inelastic x-ray scattering) has been well utilized in fundamental physics research, especially for probing low-energy excitations in highly correlated systems. However, its employment in technological material research has been limited, and the link between RIXS and the practical properties of energy materials, e.g. photovoltaics, storage materials, electrocatalysts, etc., remains weak. This is mostly due to the count-rate limitation of RIXS, leading not only to long data-collection times, but also to the nonfeasibility of RIXS for radiation-sensitive samples and in situ/operando conditions. In 2016, an in situ RIXS (iRIXS) system was commissioned at the ALS with greatly improved detection efficiency. This enables many unprecedented experiments and provides unique scientific opportunities for energy material research. The efficiency improvement also enables other enhanced RIXS techniques, including momentum-resolved RIXS (q-RIXS) and nanometer-spatial-resolution RIXS (nano-RIXS), both of which require high-throughput RIXS data collection. At this workshop, spectroscopists, materials scientists, and theoreticians will be sitting together to discuss the many exciting opportunities opened up by high-throughput RIXS for energy and functional material research.

Agenda:

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Oct 5, 8:00 Registration, Continental Breakfast (ALS Patio and Exhibitor Tent)

8:50 Workshop kickoff --- Zahid Hussain

9:00 - 9:30 Prof. Tom P. Devereaux (Stanford) on "Theory of soft x-ray RIXS"

09:45 ------------------------------------------------------------------------------ Morning Coffee Break

10:00 - 10:30 Dr. Oliver Gessner (LBNL) "Ultrafast X-ray studies of chemical and interfacial dynamics"

10:40 - 11:10 Dr. Monika Blum (UNLV) "RIXS with high-transmission spectrometers: RIXS maps and in-situ/operando measurements"

11:20 - 11:50 Dr. Walter Drisdell (JCAP) on "in situ grazing incidence XAS/XRD of catalysts for CO2 reduction"

12:00 ------------------------------------------------------------------------------- Lunch (ALS Patio)

13:30 - 14:00 Dr. Yufeng Liang (LBNL) "One-body, Two-Body, and Many-Body Theories for Simulating X-Ray Spectra from First-Principles"

14:10 - 14:40 Prof. Alex moewes (U Saskatchewan) "Adjacent Iron – Oxygen vacancy interactions as the Origin of Room Temperature Ferromagnetism in (In1-xFex)2O3"

14:50 - 15:20 Prof. L. Andrew Wray (NYU) "RIXS on "Moderately Correlated" Quantum Materials"

15:30 ------------------------------------------------------------------------------- Afternoon Coffee Break

15:45 - 16:15 Dr. Yi-de Chuang (LBNL) on "high-throughput RIXS spectrometers"

16:25 - 16:55 Dr. Keith Ray (LLNL) X-ray absorption and emission spectroscopy of the initial hydrogenation of MgB2

17:05 - 17:35 Dr. Jinghua Guo (LBNL) on "in-situ RIXS"

17:40-18:00 ---------------------------------------------------------------------- Adjourn