Photon-in/photon-out spectroscopy at the I20-scanning beamline at diamond light source. (4th June 2021)

• Record Type: Journal Article
• Authors: Hayama, Shusaku; Boada, Roberto; Chaboy, Jesús; Birt, Adrian; Duller, Graham; Cahill, Leo; Freeman, Adam; Amboage, Monica; Keenan, Luke; Diaz-Moreno, Sofia
• Is Part Of: Journal of physics. Volume 33:Number 28(2021)
• Publication Date: 2021-06-04
• Subjects: x-ray spectroscopy -- photon-in/photon-out spectroscopy -- x-ray emission spectroscopy -- high energy resolution fluorescence detection x-ray absorption spectroscopy -- resonant x-ray emission spectroscopy -- HERFD–XANES; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/1361-648X/abfe93
• Languages: English
• ISSNs: 0953-8984

Abstract

Abstract: A scanning multi-crystal x-ray emission spectrometer to perform photon-in/photon-out spectroscopy at the I20-Scanning beamline at Diamond Light Source is described. The instrument, equipped with three analyzer crystals, is based on a 1 m Rowland circle spectrometer operating in the vertical plane. The energy resolution of the spectrometer is of the order of 1 eV, having sufficient resolving power to overcome the core-hole lifetime broadening of most of the transition metals K -edges. Examples showing the capability of the beamline for performing high energy resolution fluorescence detection x-ray absorption spectroscopy (HERFD-XAS), non-resonant x-ray emission spectroscopy (XES) and resonant x-ray emission spectroscopy are presented. The comparison of the Zn and Mn K -edge HERFD–XANES of ZnO and MnO with ab initio calculations shows that the technique provides enhanced validation of the models by making subtle spectral features more visible.