Light scattering study of low-energy vibrational excitations in the metallic glass Ni67Zr33 using electronic Raman scattering

B. Muschler, I. Tütto, A. Zawadowski, J. Balogh, R. Hackl

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1 Citation (Scopus)

Abstract

The Raman response of the metallic glass Ni67Zr33 is measured as a function of polarization and temperature and analyzed theoretically. Unexpectedly, the intensity in the range up to 300cm-1 increases upon cooling, which is counterintuitive when the response originates from vibrations alone as in insulators. The increase finds a natural explanation if the conduction electrons are assumed to scatter on localized vibrations with a scattering probability proportional to the Debye-Waller factor. None of our assumptions is material specific, and the results are expected to be relevant for disordered systems in general.

Original languageEnglish
Article number104104
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume84
Issue number10
DOIs
Publication statusPublished - szept. 6 2011

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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