Phys. Rev. B 67, 174516 (2003) [6 pages]Intrinsic and extrinsic d-wave effects in YBa2Cu3O7-δ grain boundary Josephson junctions: Implications for π circuitryReceived 2 December 2002; published 21 May 2003 We have investigated the properties of biepitaxial YBa2Cu3O7-δ grain boundary Josephson junctions, which appear to be characterized by low barrier transmission probabilities. Extrinsic and intrinsic d-wave effects are discussed within the framework of novel designs for π-circuitry and qubits. The absence of spontaneous magnetization and of the consequent additional noise, in a wide range of experimental conditions, seems to be encouraging for designs of “quiet” devices. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.67.174516
DOI:
10.1103/PhysRevB.67.174516
PACS:
74.50.+r, 73.40.Gk, 73.40.Rw, 74.72.-h
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