SINGLE-CRYSTAL REFINEMENTS OF 7 SR1-XCAXCUO2 STRUCTURES (X=0-0.573) AND OF CA2-YSRYCUO3 (Y=0 AND 0.134)

Authors
HEINAU M BAUMANN R NICK B HARTWEG M WALZ L
Citation
M. Heinau et al., SINGLE-CRYSTAL REFINEMENTS OF 7 SR1-XCAXCUO2 STRUCTURES (X=0-0.573) AND OF CA2-YSRYCUO3 (Y=0 AND 0.134), Zeitschrift fur Kristallographie, 209(5), 1994, pp. 418-421
Citations number
5
Categorie Soggetti
Crystallography
Journal title
Zeitschrift fur Kristallographie → ACNP
ISSN journal
00442968
Volume
209
Issue
5
Year of publication
1994
Pages
418 - 421
Database
ISI
SICI code
0044-2968(1994)209:5<418:SRO7SS>2.0.ZU;2-M
Abstract
Single crystals of Sr1-xCaxCuO2 with x = 0-0.573 have been grown by a modified Bi2O3 flux technique using different ratios of the earth alka li carbonates. Up to x = 0.573 the SrCuO2 structure type was found. Th e changes of the lattice constants and of the atomic parameters are gi ven. The different temperature dependence of the atomic parameters com paring undoped and doped crystals is discussed. From reaction mixtures with an excess of Ca (Ca: Sr greater-than-or-equal-to 2:1) crystals w ith the composition Ca1.866Sr0.134.CuO3 could be obtained. They crysta llize in the Ca2CuO3 structure type.