Eur. Phys. J. Appl. Phys.
Volume 37, Number 1, January 2007
|Page(s)||49 - 52|
|Section||Surfaces, Interfaces and Films|
|Published online||13 December 2006|
Tl-2212 thin films annealed in a Al2O3 crucible and a steel container*
Shandong Jiaotong University, Department of Physics, Jinan, Shandong Province 250023, China
2 National Laboratory of Superconductivity, Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100080, China
3 Shangdong Normal University, College of Physics and Electronics, Jinan, Shandong Province 250014, China
Corresponding author: Yich@sdjtu.edu.cn
Revised: 12 September 2006
Accepted: 13 October 2006
Published online: 13 December 2006
Tl2Ba2CaCu2Oy(Tl-2212) thin films were fabricated on (001) LaAlO3 substrates by a two-step technique in a semi-closed aluminate crucible and a sealed steel container, respectively. First, the amorphous precursor films were deposited by the pulsed laser deposition (PLD) method, and then they were thalliated in different containers. Almost pure phase Tl-2212 thin films can be prepared in both of the containers. However, the as-annealed films show obvious differences in superconducting properties and microstructure.
PACS: 74.72.Jt – Other cuprates, including Tl and Hg-based cuprates / 74.78.Bz – High-Tc films
© EDP Sciences, 2006
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