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Microwave properties in thin films of Bi-based superconductors

✍ Scribed by Atsushi Tanaka; Nobuo Kamehara; Koichi Niwa

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
187 KB
Volume
185-189
Category
Article
ISSN
0921-4534

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✦ Synopsis

Bi-Sr-Ca-Cu-O mierostriplines having both a superconducting line and groundplane were fabricated on a MgO substrate by rf magnetron sputtering. The samples were 26.4 mm long and were nearly single-phase high-To materials. Their microwave properties have been investigated at frequencies up to 20 GHz and the high-frequency loss of the superconducting microstrips compared with that observed for geometrically equivalent gold lines. The transmission loss of the BSCCO stripline showed stronger frequency dependence than that of gold. At 77.3 K, the surface resistance of Bibased f'dms exhibited a weaker frequency dependence than that expected based on the Mattis-Bardeen model.

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