摘要:
A SQUID comprises a substrate, a washer of an oxide superconductor thin film formed on a principal surface of the substrate, a hole shaped a similar figure to the washer at the center of the washer, a slit formed between one side of the washer and the hole, and a Josephson junction which connects portions of the washer at the both sides of the slit across the slit. In the SQUID, the ratio of similarity of the washer to the hole ranges 100 to 2500.
摘要:
A SQUID comprises a substrate, a washer of an oxide superconductor thin film formed on a principal surface of the substrate, a hole shaped a similar figure to the washer at the center of the washer, a slit formed between one side of the washer and the hole, and a Josephson junction which connects portions of the washer at the both sides of the slit across the slit. In the SQUID, the ratio of similarity of the washer to the hole ranges 100 to 2500.
摘要:
A novel process for preparing superconductor of thallium-containing compound oxide such as Tl-Ba-Ca-Cu system. In the present invention, firstly an intermediate compound oxide containing metal elements of the superconductor except thallium is prepared and then the intermediate compound oxide is contacted with thallium oxide vapour at room temperature between 800 and 1,000 °C so that thallium oxide is reacted with said intermediate compound oxide.