CHARACTERIZATION AND MAGNETIC-PROPERTIES OF THE NEW GREEN-COLORED R2BACOO5 OXIDES (R-EQUIVALENT-TO-DY-LU AND Y)

Authors
HERNANDEZVELASCO J SALINASSANCHEZ A FERNANDEZ F SAEZPUCHE R
Citation
J. Hernandezvelasco et al., CHARACTERIZATION AND MAGNETIC-PROPERTIES OF THE NEW GREEN-COLORED R2BACOO5 OXIDES (R-EQUIVALENT-TO-DY-LU AND Y), Journal of alloys and compounds, 203(1-2), 1994, pp. 15-22
Citations number
36
Categorie Soggetti
Chemistry Physical","Metallurgy & Mining","Material Science
Journal title
Journal of alloys and compounds → ACNP
ISSN journal
09258388
Volume
203
Issue
1-2
Year of publication
1994
Pages
15 - 22
Database
ISI
SICI code
0925-8388(1994)203:1-2<15:CAMOTN>2.0.ZU;2-E
Abstract
New R2BaCoO5 compounds with R=Dy, Er, Tm and Lu have been synthesized and characterized by X-ray powder diffraction. All of them are isostru ctural with the previously reported R2BaCoO5 where R = Ho, Yb and Y. T hey crystallize in the Sm2BaCuO5 structural type and belong to the Pnm a space group (Z = 4). The structural differences found between Pnma-R 2BaCoO5 oxides and other related compounds are given. The magnetic pro perties of the whole family of oxides (R = Dy-Lu and Y) have been stud ied from magnetic susceptibility measurements, showing the presence of three-dimensional antiferromagnetic interactions at low temperatures (T(N) < 5 K) for most of these oxides.