Journal
CHEMICAL REVIEWS
Volume 118, Issue 15, Pages 7208-7248Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.chemrev.8b00156
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Funding
- Knut and Alice Wallenberg Foundation [KAW-2013.0020]
- Swedish Research Council [621-2014-4646]
- Heidelberg University
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During the past decade, the research field of computational X-ray spectroscopy has witnessed an advancement triggered by the development of advanced synchrotron light sources and X-ray free electron lasers that in turn has enabled new sophisticated experiments with needs for supporting theoretical investigations. Following a discussion about fundamental conceptual aspects of the physical nature of core excitations and the concomitant requirements on theoretical methods, an overview is given of the major developments made in electronic-structure theory for the purpose of simulating advanced X-ray spectroscopies, covering methods based on density-functional theory as well as wave function theory. The capabilities of these theoretical approaches are illustrated by an overview of simulations of selected linear and nonlinear X-ray spectroscopies, including X-ray absorption spectroscopy (XAS), X-ray natural circular dichroism (XNCD), X-ray emission spectroscopy (XES), resonant inelastic X-ray scattering (RIXS), and X-ray two-photon absorption (XTPA).
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