Publication
Title
Synthesis, crystal structure, transport, and magnetic properties of novel ternary copper phosphides, $A_{2}Cu_{6}P_{5}$(A = Sr, Eu) and $EuCu_{4}P_{3}$
Author
Abstract
 Three new ternary copper phosphides, Sr2Cu6P5, Eu2Cu6P5, and EuCu4P3, have been synthesized from the elements in evacuated silica capsules. Eu2Cu6P5 and Sr2Cu6P5 adopt the Ca2Cu6P5-type structure, while EuCu4P3 is isostructural to BaMg4Si3 and still remains the only representative of this structure type among the ternary Cu pnictides. All three materials show metallic conductivity in the temperature range 2 K <= T <= 290 K, with no indication for superconductivity. For Eu2Cu6P5 and EuCu4P3, long-range magnetic order was observed, governed by 4f local moments on the Eu atoms with predominant ferromagnetic interactions. While Eu2Cu6P5 shows a single ferromagnetic transition at T-C = 34 K, the magnetic behavior of EuCu4P3 is more complex, giving rise to three consecutive magnetic phase transitions at 70, 43, and 18 K.
Language
English
Source (journal)
Inorganic chemistry / American Chemical Society. - Easton, Pa
Publication
Easton, Pa : 2012
ISSN
0020-1669
Volume/pages
51:16(2012), p. 8948-8955
ISI
000307606200042
Full text (Publisher's DOI)
UAntwerpen
 Faculty/Department Research group Publication type Subject Affiliation Publications with a UAntwerp address