| Literature DB >> 25265469 |
Dmitri O Charkin1, Roman Demchyna, Yurii Prots, Horst Borrmann, Ulrich Burkhardt, Ulrich Schwarz, Walter Schnelle, Igor V Plokhikh, Sergey M Kazakov, Artem M Abakumov, Dmitry Batuk, Valery Yu Verchenko, Alexander A Tsirlin, Caroline Curfs, Yuri Grin, Andrei V Shevelkov.
Abstract
Two new ternary arsenides, namely, Eu7Cu44As23 and Sr7Cu44As23, were synthesized from elements at 800 °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 × 2 × 2 superstructure of the aristotype: space group Fm3̅m, a = 16.6707(2) Å and 16.7467(2) Å, 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.Entities:
Year: 2014 PMID： 25265469 DOI： 10.1021/ic5017615
Source DB: PubMed Journal: Inorg Chem ISSN： 0020-1669 Impact factor: 5.165