Atomic form-factor measurements in the low-momentum transfer region for Li, Be, and Al by inelastic x-ray scattering

A. Alatas, A. H. Said, H. Sinn, G. Bortel, M. Y. Hu, J. Zhao, C. A. Burns, E. Burkel, E. E. Alp

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10 Citations (Scopus)

Abstract

We report measurements of the atomic form factor of lithium, beryllium, and aluminum single crystals at low-momentum transfers (Q=1.6-50 nm-1) from the intensity of phonons observed by inelastic x-ray scattering. Comparing to Hartree-Fock calculations, the form factor deviates significantly in the case of lithium and beryllium around kF. These deviations can be mostly understood on the basis of electron redistribution by a pseudopotential. The influence of multiple scattering due to coherent phonon scattering and possible deviations from the adiabatic approximation are also discussed.

Original languageEnglish
Article number064301
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume77
Issue number6
DOIs
Publication statusPublished - Feb 1 2008

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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