X-ray Absorption Spectra in Pyrochlore Niobates

Multielectron Excitations in X-Ray Absorption Spectra of KOH

The X-ray absorption spectra have been measured near Kedge of a crystalline KOH. After the subtraction of XAFS oscillation, several features caused by multielectron transitions suggested on noble gases were detected on K in solid phase and analyzed by the use of the shakeup and shakeoff probabilities. The [ls2p], [ls3s], and [ls3p] transition onsets have been identified in the compound.

Polarization dependence of x-ray absorption spectra in graphene

Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. We calculate the x-ray absorption spectra (XAS) for 1s-π * and 1s-σ * transitions in single layer graphene using th...

Beyond the Pair Distribution Function in X-ray Absorption Spectra

Multiple-scattering calculations of x-ray-absorption spectra.

A high-order multiple-scattering (MS) approach to the calculation of polarized x-ray-absorption spectra, which includes both x-ray-absorption ne structure (XAFS) and x-ray-absorption near-edge structure (XANES), is presented. EEcient calculations in arbitrary systems are carried out by using a curved-wave MS path formalism that ignores negligible paths, and has an energy-dependent self-energy a...

A wavelet analysis for X-ray absorption spectra

X-ray absorption spectroscopy (XAS) is a powerful tool for the investigation of molecules in solution, but the complex origin of these spectra means that theoretical simulations are critical. Presently, calculations are most reliable when the photoelectron is not sensitive to the fine details of the atomic potential, i.e., in the EXAFS region which is the most attractive for local structural an...