Synthesis and crystal structure of ACu(4)As(2) (A : Ca-Ba, Eu)

Authors
Dunner, J Mewis, A
Citation
J. Dunner et A. Mewis, Synthesis and crystal structure of ACu(4)As(2) (A : Ca-Ba, Eu), Z ANORG A C, 625(4), 1999, pp. 625-628
Citations number
12
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
ISSN journal
00442313 → ACNP
Volume
625
Issue
4
Year of publication
1999
Pages
625 - 628
Database
ISI
SICI code
0044-2313(199904)625:4<625:SACSOA>2.0.ZU;2-S
Abstract
Steel-gray single crystals of ACu(4)As(2) with A = Ca-Ba and Eu respectivel y were synthesized by heating mixtures of the elements at about 900 degrees C. Structure determinations with X-ray diffractometry data revealed, that the isotypic compounds crystallize in the rhombohedral CaCu4P2 type structu re (R (3) over bar m; Z = 3) (hexagonal axes see "Inhaltsubersicht''). Meas urements of the susceptibility of EuCu4As2 showed divalent Eu and ferromagn etic order at 35 K.