ORDER DISORDER OF TETRAHEDRAL-CHAINS IN ALSR(2)YCU(2)OY AND RELATED OXIDE SUPERCONDUCTORS EXAMINED BY HRTEM/

Authors
RAMIREZCASTELLANOS J MATSUI Y ISOBE M IZUMI F KHASANOVA NR TAKAYAMAMUROMACHI E
Citation
J. Ramirezcastellanos et al., ORDER DISORDER OF TETRAHEDRAL-CHAINS IN ALSR(2)YCU(2)OY AND RELATED OXIDE SUPERCONDUCTORS EXAMINED BY HRTEM/, Physica. C, Superconductivity, 282, 1997, pp. 813-814
Citations number
5
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
282
Year of publication
1997
Part
2
Pages
813 - 814
Database
ISI
SICI code
0921-4534(1997)282:<813:ODOTIA>2.0.ZU;2-K
Abstract
Order-disorder structures in AlSr2YCu2O7 (Al-1212), related to charact eristic arrangements of AlO4 tetrahedral chains, are examined by high- resolution transmission electron microscopy (HRTEM). Symmetry-related chains (R-and L-) form intralayer ordering within each a-b plane, toge ther with interlayer disordering along the c-direction. It is consider ed that the crystal has a micro-domain structure with two kinds of sup erstructures with c(s)=4c(0) and c(s)=2c(0).