Elastic properties and Mossbauer spectra of Fe1+xNb3-xSe10

J. W. Brill, P. Boolchand, G. H. Lemon

Research output: Contribution to journalArticlepeer-review

Abstract

We have measured 57Fe Mossbauer spectra, Young's modulus, and internal friction of Fe1+xNb3-xSe10 as functions of temperature. Two quadrupole doublets observed in the Mossbauer spectrum at 300K coalesce into one doublet near 170K, suggesting either that the disorder in the cation sites present at room temperature is removed or that there is an ordering of the distorted octahedral Se cages. A broad minimum in modulus is observed at 50K, with a large peak in internal friction below this at 30K. These are attributed to changes in the charge density wave domain configuration caused by the increasing potential of the competing superlattice.

Original languageEnglish
Pages (from-to)9-13
Number of pages5
JournalSolid State Communications
Volume51
Issue number1
DOIs
StatePublished - Jul 1984

Bibliographical note

Funding Information:
"Acknowlegements"-We thank R.M. Fleming of Bell Labs for sending us crystals and C.P. Brock (U.K.) for helping with X-ray diffraction. work was supported in part by the Research Corporation and in part by the National Science Foundation. (Grants I~4R 7918005 and DMR 8217514).

Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.

ASJC Scopus subject areas

  • Chemistry (all)
  • Condensed Matter Physics
  • Materials Chemistry

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