Flux growth of Yb6.6Ir6Sn16 having mixed-valent ytterbium

Sebastian C. Peter, Udumula Subbarao, Sudhindra Rayaprol, Joshua B. Martin, Mahalingam Balasubramanian, Christos D. Malliakas, Mercouri G Kanatzidis

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The compound Yb6.6Ir6Sn16 was obtained as single crystals in high yield from the reaction of Yb with Ir and Sn run in excess indium. Single-crystal X-ray diffraction analysis shows that Yb 6.6Ir6Sn16 crystallizes in the tetragonal space group P42/nmc with a = b = 9.7105(7) Å and c = 13.7183(11) Å. The crystal structure is composed of a [Ir6Sn16] polyanionic network with cages in which the Yb atoms are embedded. The Yb sublattice features extensive vacancies on one crystallographic site. Magnetic susceptibility measurements on single crystals indicate Curie-Weiss law behavior B/Yb, which is ∼70% of the expected value for a free Yb3+ ion suggesting the presence of mixed-valent ytterbium atoms. X-ray absorption near edge spectroscopy confirms that Yb6.6Ir6Sn16 exhibits mixed valence. Resistivity and heat capacity measurements for Yb6.6Ir 6Sn16 indicate non-Fermi liquid metallic behavior.

Original languageEnglish
Pages (from-to)6615-6623
Number of pages9
JournalInorganic Chemistry
Volume53
Issue number13
DOIs
Publication statusPublished - Jul 7 2014

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Ytterbium
ytterbium
Single crystals
Fluxes
single crystals
Atoms
Indium
Curie-Weiss law
X ray absorption
Magnetic susceptibility
X ray diffraction analysis
sublattices
Specific heat
Vacancies
indium
atoms
x rays
Crystal structure
specific heat
Spectroscopy

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry

Cite this

Peter, S. C., Subbarao, U., Rayaprol, S., Martin, J. B., Balasubramanian, M., Malliakas, C. D., & Kanatzidis, M. G. (2014). Flux growth of Yb6.6Ir6Sn16 having mixed-valent ytterbium. Inorganic Chemistry, 53(13), 6615-6623. https://doi.org/10.1021/ic500204t

Flux growth of Yb6.6Ir6Sn16 having mixed-valent ytterbium. / Peter, Sebastian C.; Subbarao, Udumula; Rayaprol, Sudhindra; Martin, Joshua B.; Balasubramanian, Mahalingam; Malliakas, Christos D.; Kanatzidis, Mercouri G.

In: Inorganic Chemistry, Vol. 53, No. 13, 07.07.2014, p. 6615-6623.

Research output: Contribution to journalArticle

Peter, SC, Subbarao, U, Rayaprol, S, Martin, JB, Balasubramanian, M, Malliakas, CD & Kanatzidis, MG 2014, 'Flux growth of Yb6.6Ir6Sn16 having mixed-valent ytterbium', Inorganic Chemistry, vol. 53, no. 13, pp. 6615-6623. https://doi.org/10.1021/ic500204t
Peter SC, Subbarao U, Rayaprol S, Martin JB, Balasubramanian M, Malliakas CD et al. Flux growth of Yb6.6Ir6Sn16 having mixed-valent ytterbium. Inorganic Chemistry. 2014 Jul 7;53(13):6615-6623. https://doi.org/10.1021/ic500204t
Peter, Sebastian C. ; Subbarao, Udumula ; Rayaprol, Sudhindra ; Martin, Joshua B. ; Balasubramanian, Mahalingam ; Malliakas, Christos D. ; Kanatzidis, Mercouri G. / Flux growth of Yb6.6Ir6Sn16 having mixed-valent ytterbium. In: Inorganic Chemistry. 2014 ; Vol. 53, No. 13. pp. 6615-6623.
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AB - The compound Yb6.6Ir6Sn16 was obtained as single crystals in high yield from the reaction of Yb with Ir and Sn run in excess indium. Single-crystal X-ray diffraction analysis shows that Yb 6.6Ir6Sn16 crystallizes in the tetragonal space group P42/nmc with a = b = 9.7105(7) Å and c = 13.7183(11) Å. The crystal structure is composed of a [Ir6Sn16] polyanionic network with cages in which the Yb atoms are embedded. The Yb sublattice features extensive vacancies on one crystallographic site. Magnetic susceptibility measurements on single crystals indicate Curie-Weiss law behavior B/Yb, which is ∼70% of the expected value for a free Yb3+ ion suggesting the presence of mixed-valent ytterbium atoms. X-ray absorption near edge spectroscopy confirms that Yb6.6Ir6Sn16 exhibits mixed valence. Resistivity and heat capacity measurements for Yb6.6Ir 6Sn16 indicate non-Fermi liquid metallic behavior.

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