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A logic gate has been fabricated with the partial use of high-temperature superconducting films and tested to study digital applications of such films. The logic gate consists of three YBa2Cu3O7−x/Ag/Pb-In superconducting weak links and three inductors. The current-voltage characteristics of the weak links are nonhysteristic. The logic gate successfully provides and and or logic results for two external digital inputs at 4.2 K.
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Nishino et al. (1990) studied this question.
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