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

Charkin, Dmitri O.; Demchyna, Roman; Prots, Yurii; Borrmann, Horst; Burkhardt, Ulrich; Schwarz, Ulrich; Schnelle, Walter; Plokhikh, Igor V.; Kazakov, Sergey M.; Abakumov, Artem M.; Batuk, Dmitry; Verchenko, Valery Y.; Tsirlin, Alexander A.; Curfs, Caroline; Grin, Yuri; Shevelkov, Andrei V.

doi:10.1021/ic5017615

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

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

MPS-Authors

/persons/resource/persons126581

Demchyna, Roman
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126806

Prots, Yurii
Yuri Prots, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126541

Borrmann, Horst
Horst Borrmann, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126556

Burkhardt, Ulrich
Ulrich Burkhardt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126841

Schwarz, Ulrich
Ulrich Schwarz, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126838

Schnelle, Walter
Walter Schnelle, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126888

Tsirlin, Alexander A.
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126626

Grin, Yuri
Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

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.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0024-97DC-F

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.