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  Two New Arsenides, Eu7Cu44As23 and Sr7Cu44As23, With a New Filled Variety of the BaHg11 Structure

Charkin, D. O., Demchyna, R., Prots, Y., Borrmann, H., Burkhardt, U., Schwarz, U., et al. (2014). Two New Arsenides, Eu7Cu44As23 and Sr7Cu44As23, With a New Filled Variety of the BaHg11 Structure. Inorganic Chemistry, 53(20), 11173-11184. doi:10.1021/ic5017615.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-97DC-F Version Permalink: http://hdl.handle.net/21.11116/0000-0000-6EBB-3
Genre: Journal Article

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 Creators:
Charkin, Dmitri O.1, Author
Demchyna, Roman2, Author              
Prots, Yurii3, Author              
Borrmann, Horst4, Author              
Burkhardt, Ulrich5, Author              
Schwarz, Ulrich6, Author              
Schnelle, Walter7, Author              
Plokhikh, Igor V.1, Author
Kazakov, Sergey M.1, Author
Abakumov, Artem M.1, Author
Batuk, Dmitry1, Author
Verchenko, Valery Y.1, Author
Tsirlin, Alexander A.8, Author              
Curfs, Caroline1, Author
Grin, Yuri9, Author              
Shevelkov, Andrei V.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863404              
3Yuri Prots, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863424              
4Horst Borrmann, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863410              
5Ulrich Burkhardt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863422              
6Ulrich Schwarz, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863423              
7Walter Schnelle, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863441              
8Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              
9Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863413              

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 Abstract: Two new ternary arsenides, namely, Eu7Cu44As23 and Sr7Cu44As23, were synthesized from elements at 800 degrees C. Their crystal structure represents a new filled version of the BaHg11 motif with cubic voids alternately occupied by Eu(Sr) and As atoms, resulting in a 2 x 2 x 2 superstructure of the aristotype: space group Fm (3) over barm, a = 16.6707(2) angstrom and 16.7467(2) angstrom, respectively. The Eu derivative exhibits ferromagnetic ordering below 17.5 K. In agreement with band structure calculations both compounds are metals, exhibiting relatively low thermopower, but high electrical and low thermal conductivity.

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Language(s): eng - English
 Dates: 2014-09-29
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000343527700049
DOI: 10.1021/ic5017615
 Degree: -

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Title: Inorganic Chemistry
  Abbreviation : Inorg. Chem.
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 53 (20) Sequence Number: - Start / End Page: 11173 - 11184 Identifier: ISSN: 0020-1669
CoNE: /journals/resource/0020-1669