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  • Kumar, Ravhi S. (author)

Pressure-induced valence change in YbAl3 : A combined high-pressure inelastic x-ray scattering and theoretical investigation

  • Article/chapterEnglish2008

Publisher, publication year, extent ...

  • 2008
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:kth-36307
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-36307URI
  • https://doi.org/10.1103/PhysRevB.78.075117DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • QC 20110711
  • High-resolution x-ray-absorption (XAS) experiments in the partial fluorescence yield mode (PFY) and resonant inelastic x-ray emission (RXES) measurements were performed on the intermediate-valence compound YbAl3 under pressure of up to 38 GPa. The results of the YbAl3 PFY-XAS and RXES studies show that the valence of Yb increases smoothly from 2.75 at ambient pressure to 2.93 at 38 GPa. In situ angle-dispersive synchrotron high-pressure x-ray-diffraction experiments carried out using a diamond cell at room temperature show that the ambient pressure cubic phase is stable up to 40 GPa. The results obtained from self-interaction corrected local spin density-functional calculations to understand the pressure effect on the Yb valence and compressibility are in good agreement with the experimental results.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Svane, Axel (author)
  • Vaitheeswaran, GanapathyKTH,Tillämpad materialfysik(Swepub:kth)u17pa60w (author)
  • Kanchana, VenkatakrishnanKTH,Tillämpad materialfysik(Swepub:kth)u1232rlz (author)
  • Bauer, Eric D. (author)
  • Hu, Michael (author)
  • Nicol, Malcolm F. (author)
  • Cornelius, Andrew L. (author)
  • KTHTillämpad materialfysik (creator_code:org_t)

Related titles

  • In:Physical Review B. Condensed Matter and Materials Physics78:7, s. 075117-1098-01211550-235X

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