A new method for extracting x-ray absorption fine structure and the atomic background from an x-ray absorption spectrum

A new method for extracting x-ray absorption fine structure and the atomic background from an x-ray absorption spectrum

A new technique for separating x-ray absorption fine structure (XAFS) and the atomic background in an x-ray absorption spectrum is presented. XAFS oscillations are reliably extracted from the Fourier transform of the nth derivative of the experiment data, without making the usual smooth-background a...

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Veröffentlicht in:Journal of physics. Condensed matter 1997-06, Vol.9 (25), p.5507-5515
Hauptverfasser: Hu, T D, Xie, Y N, Jin, Y L, Liu, T
Format: Artikel
Sprache:eng
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Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other interactions of matter with particles and radiation
Physics
X-ray absorption and absorption edges
X-ray absorption spectra
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container_issue 25
container_start_page 5507
container_title Journal of physics. Condensed matter
container_volume 9
creator Hu, T D
Xie, Y N
Jin, Y L
Liu, T
description A new technique for separating x-ray absorption fine structure (XAFS) and the atomic background in an x-ray absorption spectrum is presented. XAFS oscillations are reliably extracted from the Fourier transform of the nth derivative of the experiment data, without making the usual smooth-background approximation. The atomic background is obtained by the subtraction of the XAFS from the experimental data. Multielectron excitations and atomic XAFS (AXAFS) have been observed in the atomic background. This provides a useful tool for the investigation of multielectron excitations and AXAFS in condensed matter.
doi_str_mv 10.1088/0953-8984/9/25/018
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subjects Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other interactions of matter with particles and radiation
Physics
X-ray absorption and absorption edges
X-ray absorption spectra
title A new method for extracting x-ray absorption fine structure and the atomic background from an x-ray absorption spectrum
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