Surface Resistance Studies of Laser-Deposited Superconducting Tl sub 2 Ba sub 2 CaCu sub 2 O sub 8 Films

Surface Resistance Studies of Laser-Deposited Superconducting Tl sub 2 Ba sub 2 CaCu sub 2 O sub 8 Films

The surface resistance R sub S of laser-deposited. Tl sub 2 Ba sub 2 CaCu sub 2 O sub 8 thin films on LaAlO sub 3 substrates was measured. After correcting for leakage of radiation through the films, the normalized surface resistance R sub S /R sub N (with R sub N the normal-state surface resistance...

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Veröffentlicht in:Journal of applied physics 1990-07, Vol.70 (1), p.496-498
Hauptverfasser: Eddy, M M, Sun, J Z, Hammond, R D, Drabeck, L, Ferreira, I B, Holczer, K, Gruner, G
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Sprache:eng
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Zusammenfassung:The surface resistance R sub S of laser-deposited. Tl sub 2 Ba sub 2 CaCu sub 2 O sub 8 thin films on LaAlO sub 3 substrates was measured. After correcting for leakage of radiation through the films, the normalized surface resistance R sub S /R sub N (with R sub N the normal-state surface resistance at T = > T sub c ) is comparable to YBa sub 2 Cu sub 3 O sub 7 (123) films. The higher transition temperature of the Tl films leads to superior microwave performance in particular at temperatures approx T = 77K and above. Graphs. 7 ref.--AA
ISSN:0021-8979