1 October 1990 Pulsed laser deposition of Tl-Ca-Ba-Cu-O films
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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.
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Natale Joseph Ianno, S. H. Liou, John A. Woollam, Daniel W. Thompson, 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); doi: 10.1117/12.21026; https://doi.org/10.1117/12.21026
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KEYWORDS
Thallium

Pulsed laser deposition

Barium

Calcium

Composites

Copper

Superconductors

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