DSpace at IIT Bombay >
IITB Publications >
Please use this identifier to cite or link to this item:
|Title: ||Superconductivity and possible overdoping in Lu1-xCaxBa2Cu3O7-delta|
|Authors: ||GNANASEKAR, KI|
|Keywords: ||copper-oxide superconductors|
|Issue Date: ||1996|
|Citation: ||ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 99(2), 173-177|
|Abstract: ||Structural and superconducting properties of the system Lu1-xCaxBa2 CU3O7-delta, both in bulk as well as thin film form, have been investigated. Presence of large Ca-ions at the Lu-sites is responsible for phase stability (in 1-2-3 phase) in bulk. In argon annealed tetragonal samples (delta:1) superconductivity is reinstated as in these samples, presence of Ca-ions lead to the generation of holes in the Cu-O planes. In oxygen annealed bulk samples and thin films, there is a large depression of T-c due to divalent Ca-ions present in concentration x < 0.2. Our data indicate that this depression of T-c is likely due to overdoping effect.|
|Appears in Collections:||Article|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.