Pulsed laser deposition of Tl-Ca-Ba-Cu-O films

Natale Joseph Ianno; S. H. Liou; John A. Woollam; Daniel W. Thompson; Blaine D. Johs

doi:10.1117/12.21026

1 October 1990 Pulsed laser deposition of Tl-Ca-Ba-Cu-O films

Natale Joseph Ianno, S. H. Liou, John A. Woollam, Daniel W. Thompson, Blaine D. Johs

Proceedings Volume 1292, Superconductivity Applications for Infrared and Microwave Devices; (1990) https://doi.org/10.1117/12.21026
Event: 1990 Technical Symposium on Optics, Electro-Optics, and Sensors, 1990, Orlando, FL, United States

Abstract

Pulsed laser deposition is a technique commonly used to deposit high quality thin films of high temperature superconductors. This paper discusses the results obtained when this technique is applied to the deposition of Tl-Ca-Ba-Cu-O thin films using a frequency doubled Nd:YAG laser operating at 532 nm and an excimer laser operating at 248 nm. Films with onset temperatures of 125 K and zero resistance temperatures of 110 K deposited on (100) oriented MgO from a composite Tl2Ca2Ba2Cu3Ox target were obtained at both wavelengths upon appropriate post deposition annealing. Films deposited at 532 nm exhibit a rough surface, while those deposited at 248 nm are smooth and homogeneous. Upon annealing, films deposited at both wavelengths are single phase Tl2Ca2Ba2Cu3Ox.

Citation Download Citation

Natale Joseph Ianno, S. H. Liou, John A. Woollam, Daniel W. Thompson, and Blaine D. Johs "Pulsed laser deposition of Tl-Ca-Ba-Cu-O films", Proc. SPIE 1292, Superconductivity Applications for Infrared and Microwave Devices, (1 October 1990); https://doi.org/10.1117/12.21026

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