Substrate and composition effects on BSCCO thin films deposited by aerosol MOCVD

• Type: Article in International Scientific Journal
• Date: 2002

Authors

Tavares, Pedro B. (Author) Other; Amaral, V. S. (Author) Other; Araújo, João Pedro (Author) FCUP; Oliveira, Manuel Cid P (Author) Other; Vieira, Joaquim Manuel (Author) Other

Journal

Title: Advanced Materials Forum I

Vol. 77

Pages: 173-176

Publisher: Trans Tech Publications

Indexing

ISI Web of Knowledge - 0 Citations

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Other information

Authenticus ID: P-000-QPH

Abstract (EN): Superconductor thin films of the BSCCO system were deposited by aerosol-MOCVD on LaAlO3 and MgO substrates at a high deposition rate. The X-ray diffraction patterns of the deposited films reveal intergrowths between the 2212/2223 phases. The application of the precision plot model to a Bi-22(n-1)n heterostructure allowed the quantification of the intergrowths in terms of the n value (non-integer). A phase with n=2, Bi-2212 phase, is isolated from a phase with 2<n<3, meaning intergrowths between Bi-2212 and Bi-2223 phases. The n values were correlated with the compositions of the films with Sr/(Sr+Ca+Cu) compositional ratios close to 0.28 leading to a value of n near 3.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4