Preparation of a new layered cuprate (As0.33Cu0.67)Sr2YCu2Oy and its physical properties

Authors
Sato, E Kambe, S Ishii, O Akao, T Ohsuna, T Hiraga, K
Citation
E. Sato et al., Preparation of a new layered cuprate (As0.33Cu0.67)Sr2YCu2Oy and its physical properties, PHYSICA C, 341, 2000, pp. 447-448
Citations number
4
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
341
Year of publication
2000
Part
1
Pages
447 - 448
Database
ISI
SICI code
0921-4534(200011)341:<447:POANLC>2.0.ZU;2-J
Abstract
(As0.33Cu0.67)Sr2YCu2Oy was newly prepared. (As0.33Cu0.67)Sr2YCu2O6.88 has a tetragonal unit cell with a = 3.829(6), c = 11.47(1)Angstrom. Annealing t he sample in oxygen led to an increase in the Cu valence as large as 2.38. However, resistivity measurements show that (As0.33Co0.67)Sr2YCu2O6.88 is n ot superconducting but semiconducting.