Magnetic properties of the solid solution (Y1-xGdx)(2)BaCuO5 (0 <= x <= 1)

Authors
Citation
Gf. Goya, Magnetic properties of the solid solution (Y1-xGdx)(2)BaCuO5 (0 <= x <= 1), J MAGN MAGN, 205(2-3), 1999, pp. 215-220
Citations number
31
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
205
Issue
2-3
Year of publication
1999
Pages
215 - 220
Database
ISI
SICI code
0304-8853(199911)205:2-3<215:MPOTSS>2.0.ZU;2-U
Abstract
Magnetic properties of the (Y1-xGdx)(2)BaCuO5 solid solution with 0 less th an or equal to x less than or equal to 1 have been investigated by DC magne tization and electron spin resonance (ESR). These compounds were found to c rystallize with orthorhombic symmetry, Pnma space group, for the whole rang e of Gd3+ content. The cell parameters increase continuously with x, in agr eement with the Y3+ substitution by the larger Gd3+ ions. In contrast with the x = 0 and 1 members of the series, magnetization data for 0 < x < 1 sho w paramagnetic behavior down to 1.7 K. From the total effective moment mu(e ff) as a function of x, the Gd3+ and Cu2+ contributions were estimated to b e mu(Gd) = 8.06(9) mu(B) and mu(Cu) = 2.0(5) mu(B). The ESR resonant held H -R and linewidth Delta H-PP increase monotonically with Gd3+ content. For s amples with x less than or equal to 0.10, the onset of short-range interact ions from the 2D Cu2+ sublattice is observed at T-S approximate to 21 K. (C ) 1999 Elsevier Science B.V. All rights reserved.