Infrared study of relevance of Nd2CuO4 structure to superconductivity of La-Sr-Cu-O system

Authors
Rambabu, D Muraleedharan, K
Citation
D. Rambabu et K. Muraleedharan, Infrared study of relevance of Nd2CuO4 structure to superconductivity of La-Sr-Cu-O system, J MATER SCI, 34(18), 1999, pp. 4597-4599
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS SCIENCE
ISSN journal
00222461 → ACNP
Volume
34
Issue
18
Year of publication
1999
Pages
4597 - 4599
Database
ISI
SICI code
0022-2461(1999)34:18<4597:ISORON>2.0.ZU;2-H
Abstract
A comparative study of the infrared spectra of Nd2Cu1-xAgxO4 and La1.8Sr0.2 Cu1-xAgxO4 is reported. It is shown that the appearance of an absorption pe ak at similar to 680 cm(-1) is due to local distortions around the Ag impur ities, and the appearance of this peak need not imply a structural transfor mation from Nd2CuO4 type of K2NiF4 type. It is shown that Nd2CuO4 structure is not important for the superconductivity of La-Sr-Cu-O system. (C) 1999 Kluwer Academic Publishers.