Surface resistance studies of laser-deposited superconducting Tl2Ba2CaCu2O8 films

Surface resistance studies of laser-deposited superconducting Tl2Ba2CaCu2O8 films

We have measured the surface resistance Rs of laser-deposited Tl2Ba2CaCu2O8 thin films on LaAlO3 substrates. After correcting for leakage of radiation through the films, we find that the normalized surface resistance Rs/RN (with RN the normal-state surface resistance at T ≥ Tc) is comparable to YBa2...

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Veröffentlicht in:Journal of applied physics 1991-07, Vol.70 (1), p.496-498
Hauptverfasser: EDDY, M. M, SUN, J. Z, HAMMOND, R. D, DRABECK, L, FERREIRA, I. B, HOLCZER, K, GRUÊNER, G
Format: Artikel
Sprache:eng
Schlagworte:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Physics
Superconducting films and low-dimensional structures
Superconductivity
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Zusammenfassung:We have measured the surface resistance Rs of laser-deposited Tl2Ba2CaCu2O8 thin films on LaAlO3 substrates. After correcting for leakage of radiation through the films, we find that the normalized surface resistance Rs/RN (with RN the normal-state surface resistance at T ≥ Tc) is comparable to YBa2Cu3O7 (123) films. The higher transition temperature of the Tl films leads to superior microwave performance in particular at temperatures around T=77 K and above.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.350257