李想博士 [University of Münster/ESRF-ID14]

Title: Nuclear resonance scattering at extremes

Language:  Chinese presentation with English slides

Time: 10:00 - 11:00, September 30, 2024

Place: Onsite：Conference room A417, HPSTAR (Beijing)            

          Online: Tencent Meeting: https://meeting.tencent.com/dm/JfLjpNOChyns Meeting ID: 685-871-115 

Host: Dr. Huiyang Gou

Abstract:

Nuclear Resonance Scattering of synchrotron radiation is a well-established scattering process for obtaining information relevant to physicochemical properties of compounds/complexes containing the so-called Mössbauer active isotopes, i.e., stable isotopes with nuclear transitions that can be favorably excited using synchrotron radiation or alternatively a radioactive source. The valence and the spin state, the local electronic environment, the magnetic state (both amplitude and direction of magnetic field), and the lattice dynamics may be revealed ex-situ/in-situ/operando using Nuclear Resonance Scattering of synchrotron radiation. In this talk the principle of nuclear resonance scattering of synchrotron radiation will be given, the characteristics of the newly built nuclear resonance beamline ID14 at ESRF will be discussed, and representative examples of SMS and NIS will be presented.

Biography of the Speaker:

Li Xiang graduated with a Bachelor's and Master's degree in Geology from China University of Geosciences (Wuhan). Since 2021, he has been conducting doctoral research at the University of Münster and the European Synchrotron Radiation Facility. During his PhD, he primarily studies the changes in the physicochemical properties of iron oxides under varying temperature and pressure conditions using synchrotron X-ray diffraction and Mössbauer spectroscopy.