Journal Article

DESY-2014-01616

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Features of the local structure of rare-earth dodecaborides $RB_{12}$ (R = Ho, Er, Tm, Yb, Lu)

Menushenkov, A. (Corresponding author)Extern* ; Yaroslavtsev, A. A.Extern* ; Zaluzhnyy, I. A.DESY* ; Kuznetsov, A. V. ; Chernikov, R. V.DESY* ; Shitsevalova, N. Y. ; Filippov, V. B.

2013
Springer Heidelberg [u.a.]

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Please use a persistent id in citations: doi:10.1134/S002136401316011X

Abstract: The parameters of the local crystal structure of dodecaborides RB12 (R = Ho, Er, Tm, Yb, Lu) have been determined by extended X-ray absorption fine structure (EXAFS) spectroscopy. It has been shown that the vibrations of the rare-earth ion with respect to the boron cage are well described in the harmonic approximation. At the same time, the displacement of rare-earth ions from equilibrium positions of the crystal structure should be taken into account to determine the length of the R-B bond. The analysis of EXAFS spectra has revealed the displacement of 1–6% of rare-earth ions by about 0.2–0.3 Å in all compounds under investigation; this displacement at low temperatures results in the formation of a cage glass phase.

Note: © Pleiades Publishing, Inc.; Post referee fulltext in progress; Embargo 12 months from publication

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Contributing Institute(s):

1. FS-Photon Science (FS-PS)
2. PETRA III Extension (FS-PEX)
3. DOOR-User (DOOR)

Research Program(s):

1. DORIS Beamline C (POF2-54G13) (POF2-54G13)
2. FS-Proposal: I-20110886 (I-20110886) (I-20110886)

Experiment(s):

1. DORIS Beamline C (DORIS III)

Appears in the scientific report 2013

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Database coverage:
JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection ; Zoological Record

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