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Soft X-Ray Fluorescence Studies of Solids



J A. Carlisle, Steven R. Blankenship, R N. Smith, Eric L. Shirley, L J. Terminello, J J. Jia, T A. Callcott, D L. Ederer


Resonant inelastic x-ray scattering (RIXS) has been observed in many systems above and below their core threshold. Below threshold, inelastic-loss features are observed, which disperse linearly with excitation energy, but as the excitation increases above the core binding energy, nonlinear dispersive effects are generally observed. These two effects are described by the same physics of coherent fluorescence. Very good agreement between experiment and simulated RIXS is achieved using a simple one-electron framework. However, significant questions have arisen concerning core-hole effects and their influence on RIXS. In this work, the role core-excitons play in the RIXS process is examined in finer detail in graphite, by using narrow-band excitation, and through comparison between experiment and simulated spectra which include the core-hole effects explicitly in the modeling. Based on these findings, we conclude that core-hole effects play a minor but detectable role in the RIXS observed from graphite.
Journal of Electron Spectroscopy and Related Phenomena


band structure, excitons, graphite resonant x-ray scattering, x-ray emission spectra


Carlisle, J. , Blankenship, S. , Smith, R. , Shirley, E. , Terminello, L. , Jia, J. , Callcott, T. and Ederer, D. (2021), Soft X-Ray Fluorescence Studies of Solids, Journal of Electron Spectroscopy and Related Phenomena (Accessed February 21, 2024)
Created October 12, 2021