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RIXS Program

Resonant inelastic x-ray scattering (RIXS) spectroscopy provides direct information about elementary excitations, such as d-d/f-f, charge transfer, and excitations in spin, charge, orbital, and lattice degrees of freedom. X-ray absorption spectroscopy (XAS) and x-ray emission spectroscopy (XES) measure the unoccupied and occupied electronic structure, respectively. Observations of these excitations and atomic, molecular, and electronic structure are critical for research on energy-related materials and their chemical functionalities, as well as on quantum materials with strong electronic correlations.

The RIXS Program at the ALS manages several RIXS systems covering a wide range of instrumentation and science: full-energy-range fast mapping of RIXS (mRIXS) spectra, various in situ/operando RIXS, XAS and XES capabilities (wetRIXS), and high-efficiency momentum-resolved RIXS (qRIXS). Additionally, two high-resolution RIXS beamlines—AMBER for energy materials research and QERLIN for quantum materials research—are under construction/commissioning. These current and future RIXS projects will excel in the areas of quantum materials, energy materials, catalysis, and chemistry for research in both practical materials and fundamental science.

Beamlines

Personnel

ALS Staff

Jinghua Guo

Senior Scientist, Program Lead

Per-Anders Glans-Suzuki

Research Scientist

Wanli Yang

Senior Scientist

Zengqing Zhuo

Research Scientist

Doctoral and Postdoctoral Researchers

  • Lingzhe Fang
    NSF-INTERN visiting student (2021- ), Northern Illinois University
    XAS/RIXS of catalytic systems

  • Yang Ha
    ALS Postdoc (2018- ), DOE Vehicle Technologies Office (VTO) project
    Soft x-ray spectroscopy of cation-disordered electrode materials

  • Eli Diego Kinigstein
    ALS Postdoc (2021- )
    Ultrahigh-throughput x-ray spectroscopy for materials discovery in energy and chemical science

  • Gihyeok Lee
    ALS Student Fellow (2019- ), Korea University
    Oxygen redox reactions in battery cathodes

  • Hui Li
    ALS Postdoc (2019- ), Joint Center for Energy Storage Research (JCESR)
    Multivalent-ion solvation structure and charge transfer process

  • Nicholas Russo
    DOE SCGSR Doctoral Fellow (2021- ), Boston University
    XAS/RIXS of nanoparticle size effects on charge density wave molybdenum bronzes

  • Lauren Judith Vallez
    DOE SCGSR Doctoral Fellow (2021- ), Stanford University
    XAS/RIXS of electrode/electrolyte interface during electrochemical water oxidation to hydrogen peroxide

  • Feipeng Yang
    ALS Postdoc (2020- ), Joint Center for Energy Storage Research
    JCESR: Multivalent-ion solvation structure and charge transfer process

  • Wasif Zaheer
    ALS Visiting Ph.D. Student (2018- ), Texas A&M University
    Elucidating fundamental mechanisms of fluoride-ion insertion in low-dimensional ferrous antimonite

  • Zengqing Zhuo
    ALS Postdoc (2021- ), Hydrogen Materials Advanced Research Consortium (HyMARC)

Program Alumni

  • Emma Anquillare
    ALS Doctoral Fellow (2017-2021), Boston University

  • Yu-Jen Chen
    ALS Visiting Scholar (2016-2017)

  • Zhangzhang Cui
    ALS Visiting Student (2015-2016)

  • Alex Frano, Assistant Professor, UC San Diego
    ALS Postdoctoral Fellow (2014-2016)

  • Bingmei Feng
    ALS Visiting Student (2014-2015)

  • Xuefei Feng, Staff Scientist, National Synchrotron Radiation Laboratory (China), University of Science and Technology of China

  • Wei Guo
    ALS Visiting Ph.D. Student (2019-2020), Dalian University of Technology

  • Shang-Hsien Hsieh
    ALS Visiting Student (2017-2018)

  • Wencheng Huang
    ALS Doctoral Fellow (2019-2021), SIMIT, Chinese Academy of Sciences

  • Nan Jiang
    AP Postdoc (2019-2021), University of Nevada, Las Vegas

  • Jaemyung Kim, National Institute for Materials Science, Japan
    ALS Visiting Scholar (2016-2017)

  • Zachary Lebens-Higgins
    ALS Doctoral Fellow (2018-2019)

  • Hui Li
    ALS Postdoc (2019-2022), Joint Center for Energy Storage Research (JCESR)

  • Qinghao Li, Professor, Qingdao University
    ALS Visiting Student (2015-2017)

  • Qingtian Li
    Visiting Ph.D. Student, ShanghaiTech University

  • Peng Liu
    ALS Visiting Student (2014-2015)

  • Xiaosong Liu, Professor, ShanghaiTech University
    LDRD Postdoctoral Fellow (2012-2014)

  • Yi-Sheng Liu, Research Scientist, Sigray, Inc.
    ALS Project Scientist (2016-2020)

  • Johannes Mahl
    ALS Doctoral Fellowship (2016-2017)

  • Lin Miao, Professor, Southeast University, China
    ALS Postdoctoral Fellow (2015-2017)

  • Kaiqi Nie
    ALS Visiting Student (2013-2015)

  • Paul Olalde-Velasco, Assistant Professor, Universidad Autónoma Metropolitana Iztapalapa
    ALS Visiting Student and Postdoc (2009-2013)

  • Ruimin Qiao, Research Scientist Sigray, Inc.
    ALS Postdoctoral Fellow (2012-2017)

  • Guoxi Ren
    ALS Visiting Student (2018-2019)

  • Subhayan Roychoudhury
    LDRD Postdoc, Molecular Foundry, Berkeley Lab

  • Shawn Sallis
    ALS Doctoral Fellow (2015-2017)
    ALS Postdoctoral Fellow (2017-2019)

  • Yu-Cheng Shao, Assistant Research Scientist, National Synchrotron Radiation Research Center (Taiwan)
    ALS Postdoctoral Fellow (2017-2020), University of Houston

  • James Thorne
    ALS Doctoral Fellowship (2017-2018)

  • Hsiao-Tsu Wang
    ALS Visiting Student (2015-2017)

  • Chenghao Wu, Research Scientist, Lam Research
    ALS Postdoctoral Fellow (2015-2017)

  • Jinpeng Wu
    ALS Postdoctoral Fellow (2017-2020)

  • Jue Wu
    ALS Visiting Student (2018-2019)

  • Yujian Xia
    ALS Visiting Student (2016-2017)

  • Yan Xu
    ALS Visiting Student (2016-2018)

  • Yong Xu
    ALS Visiting Postdoc (2015-2016)

  • Yifan Ye
    ALS Visiting Student and Postdoc (2014-2017)

  • Liang Zhang, Professor, Soochow University
    ALS Postdoctoral Fellow (2016-2018)

  • Yang Zhao, Assistant Professor, University of Western Ontario
    ALS Postdoctoral Fellow (2019-2020), University of Western Ontario