压力下磁激发的共振非弹性X射线散射
Resonant inelastic X-ray scattering of magnetic excitations under pressure.
作者信息
Rossi Matteo, Henriquet Christian, Jacobs Jeroen, Donnerer Christian, Boseggia Stefano, Al-Zein Ali, Fumagalli Roberto, Yao Yi, Vale James G, Hunter Emily C, Perry Robin S, Kantor Innokenty, Garbarino Gaston, Crichton Wilson, Monaco Giulio, McMorrow Desmond F, Krisch Michael, Moretti Sala Marco
机构信息
ESRF - The European Synchrotron, 71 Avenue des Martyrs, CS 40220, F-38043 Grenoble, France.
London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK.
出版信息
J Synchrotron Radiat. 2019 Sep 1;26(Pt 5):1725-1732. doi: 10.1107/S1600577519008877. Epub 2019 Aug 15.
Resonant inelastic X-ray scattering (RIXS) is an extremely valuable tool for the study of elementary, including magnetic, excitations in matter. The latest developments of this technique have mostly been aimed at improving the energy resolution and performing polarization analysis of the scattered radiation, with a great impact on the interpretation and applicability of RIXS. Instead, this article focuses on the sample environment and presents a setup for high-pressure low-temperature RIXS measurements of low-energy excitations. The feasibility of these experiments is proved by probing the magnetic excitations of the bilayer iridate SrIrO at pressures up to 12 GPa.
共振非弹性X射线散射（RIXS）是研究物质中的基本激发（包括磁激发）的极其有价值的工具。该技术的最新进展主要旨在提高能量分辨率并对散射辐射进行偏振分析，这对RIXS的解释和适用性产生了重大影响。相反，本文重点关注样品环境，并展示了一种用于低能激发的高压低温RIXS测量装置。通过探测双层铱酸盐SrIrO在高达12 GPa压力下的磁激发，证明了这些实验的可行性。
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