| 摘 要： | A model is proposed for the thermal and electrical responses of films of the high-T
c superconducting material YBa2Cu3O77−x
to current and optical pulses. Numerical calculations are compared with experimental data for current pulses of duration
100 μs and laser pulses of duration 0.1 ns; this yields improved data on the thermal conductivity of thin YBa2Cu3O77−x
films (1.5–2 W/m·K) and thermal resistance of the film-substrate contact (5×10−8m2·K/W) in the neighborhood of the superconducting transition. This model can be used for optimizing the film structure parameters
and control regimes for switching elements for pulses lasting longer than 0.1 ns.
Zh. Tekh. Fiz. 69, 77–82 (October 1999)
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