Lifetime-Broadening-Suppressed Selective XAFS Spectroscopy

Lifetime-broadening-suppressed selective XAFS spectroscopy.

Lifetime-broadening-suppressed (LBS) state-selective XAFS spectra can be deduced by analyzing resonant inelastic x-ray scattering (RIXS) in terms of formulae derived from the Kramers-Heisenberg equation. By a combination of third-generation synchrotron sources and spectrometers equipped with a large acceptance as well as high-resolution analyzers, high-quality RIXS data to extract LBS selective...

Development of light-modulated XAFS spectroscopy (2)

Kaoru OKAMOTO, Kenji KOHDATE, Kensuke NAGAI, Jun MIYAWAKI, Hiroshi KONDOH, Toshihiko YOKOYAMA, Shuichi EMURA, and Toshiaki OHTA* 1 Department of Chemistry, School of Science, the University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan 2 Institute for Molecular Science, Myodaiji-cho, Okazaki, Aichi 444-8585, Japan 3 The Institute of Scientific and Industrial Research, Osaka University, Miho...

Local structure of Ge/Si nanostructures: Uniqueness of XAFS spectroscopy

A discussion of the limitations of Raman scattering as applied to Ge/Si nanostructures is followed by a summary of our recent efforts to investigate the local structure of various Ge nanostructures, namely, Ge quantum dots MBE grown on bare Si(1 0 0), on Si(1 1 1) with a 0.3 nm SiO2 coverage, and nanocrystals embedded in SiO2, by X-ray absorption fine structure spectroscopy. For the latter case...

Particle Size Measurements Using Diffusion Broadening Spectroscopy

X-Ray Absorption Fine Structure (XAFS) Spectroscopy – A Review

X-ray absorption spectroscopy (XAS) refers to the details of how X-rays are absorbed by an atom at energies near and above the core-level binding energies of that particular atom. The absorption of X-rays on the high energy side of absorption edges does not vary monotonically in condensed matter but has a complicated behavior which extends past the edge up to about ~1 keV. This non-monotonic va...