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Title: Synthesis and structure determination of Ce 6 Cd 23 Te: a new chalcogen-containing member of the RE 6 Cd 23 T family ( RE is a rare-earth metal and T is a late group 14, 15 and 16 element)

Abstract

The ternary phase hexacerium tricosacadmium telluride, Ce 6Cd 23Te, was synthesized by a high-temperature reaction of the elements in sealed Nb ampoules and was structurally characterized by powder and single-crystal X-ray diffraction. The structure, established from single-crystal X-ray diffraction methods, is isopointal with the Zr 6Zn 23Si structure type (Pearson symbolcF120, cubic space groupFm-3m), a filled version of the Th 6Mn 23structure with the same space group and Pearson symbolcF116. Though no Cd-containing rare-earth metal binaries are known to form with this structure, it appears that the addition of small amounts of ap-block element allows the formation of such interstitially stabilized ternary compounds. Temperature-dependent direct current (dc) magnetization measurements suggest local-moment magnetism arising from the Ce 3+ground state, with possible valence fluctuations at low temperature, inferred from the deviations from the Curie–Weiss law.

Authors:
;
Publication Date:
Research Org.:
Univ. of Delaware, Newark, DE (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1536595
DOE Contract Number:  
SC0008885
Resource Type:
Journal Article
Journal Name:
Acta Crystallographica. Section C, Structural Chemistry (Online)
Additional Journal Information:
Journal Volume: 73; Journal Issue: 2; Journal ID: ISSN 2053-2296
Publisher:
International Union of Crystallography
Country of Publication:
United States
Language:
English
Subject:
Chemistry; Crystallography

Citation Formats

Desroches, Griffen, and Bobev, Svilen. Synthesis and structure determination of Ce 6 Cd 23 Te: a new chalcogen-containing member of the RE 6 Cd 23 T family ( RE is a rare-earth metal and T is a late group 14, 15 and 16 element). United States: N. p., 2017. Web. doi:10.1107/s2053229617001243.
Desroches, Griffen, & Bobev, Svilen. Synthesis and structure determination of Ce 6 Cd 23 Te: a new chalcogen-containing member of the RE 6 Cd 23 T family ( RE is a rare-earth metal and T is a late group 14, 15 and 16 element). United States. doi:10.1107/s2053229617001243.
Desroches, Griffen, and Bobev, Svilen. Tue . "Synthesis and structure determination of Ce 6 Cd 23 Te: a new chalcogen-containing member of the RE 6 Cd 23 T family ( RE is a rare-earth metal and T is a late group 14, 15 and 16 element)". United States. doi:10.1107/s2053229617001243.
@article{osti_1536595,
title = {Synthesis and structure determination of Ce 6 Cd 23 Te: a new chalcogen-containing member of the RE 6 Cd 23 T family ( RE is a rare-earth metal and T is a late group 14, 15 and 16 element)},
author = {Desroches, Griffen and Bobev, Svilen},
abstractNote = {The ternary phase hexacerium tricosacadmium telluride, Ce6Cd23Te, was synthesized by a high-temperature reaction of the elements in sealed Nb ampoules and was structurally characterized by powder and single-crystal X-ray diffraction. The structure, established from single-crystal X-ray diffraction methods, is isopointal with the Zr6Zn23Si structure type (Pearson symbolcF120, cubic space groupFm-3m), a filled version of the Th6Mn23structure with the same space group and Pearson symbolcF116. Though no Cd-containing rare-earth metal binaries are known to form with this structure, it appears that the addition of small amounts of ap-block element allows the formation of such interstitially stabilized ternary compounds. Temperature-dependent direct current (dc) magnetization measurements suggest local-moment magnetism arising from the Ce3+ground state, with possible valence fluctuations at low temperature, inferred from the deviations from the Curie–Weiss law.},
doi = {10.1107/s2053229617001243},
journal = {Acta Crystallographica. Section C, Structural Chemistry (Online)},
issn = {2053-2296},
number = 2,
volume = 73,
place = {United States},
year = {2017},
month = {1}
}

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