Biepitaxial YBa2Cu3O7-x Grain Boundary Josephson Junctions: 0- and π- Rings for Fundamental Studies and Potential Circuit Implementation

Francesco Tafuri, Franco Carillo, Filomena Lombardi, Fabio Miletto Granozio, Fabrizio Ricci, Umberto Scotti di Uccio, Antonio Barone, Gianluca Testa, Ettore Sarnelli and John R. Kirtley
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Francesco Tafuri: Seconda Università di Napoli, Aversa Dip. Scienze Fisiche Università di Napoli “Federico II”, INFM Dip. Ingegneria dell’Informazione
Franco Carillo: dell’Università di Napoli “Federico II”, INFM-Dip. Scienze Fisiche
Filomena Lombardi: dell’Università di Napoli “Federico II”, INFM-Dip. Scienze Fisiche
Fabio Miletto Granozio: dell’Università di Napoli “Federico II”, INFM-Dip. Scienze Fisiche
Fabrizio Ricci: dell’Università di Napoli “Federico II”, INFM-Dip. Scienze Fisiche
Umberto Scotti di Uccio: dell’Università di Napoli “Federico II”, INFM-Dip. Scienze Fisiche
Antonio Barone: dell’Università di Napoli “Federico II”, INFM-Dip. Scienze Fisiche
Gianluca Testa: Istituto di Cibernetica del CNR
Ettore Sarnelli: Istituto di Cibernetica del CNR
John R. Kirtley: IBM T.J. Watson Research Center

A chapter in Macroscopic Quantum Coherence and Quantum Computing, 2001, pp 83-100 from Springer

Abstract: Abstract We present various concepts and experimental procedures to fabricate biepitaxial YBa2Cu3O7-x grain boundary Josephson junctions. The performance of our junctions indicates significant improvement in the biepitaxial technique. Different types of structures can be realized including “π-loops” in which one of the junctions is intrinsically π-phase shifted. Due to its versatility the biepitaxial technique offers the possibility to investigate basic aspects of the physics of grain boundary Josephson junctions and also the influence of π-loops in transport properties. Further, we discuss the possibility to produce circuits in which “0-” and “π-loops” are controllably located on the same chip.

Keywords: Josephson junctions; High critical temperature superconductors (search for similar items in EconPapers)
Date: 2001
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-1-4615-1245-5_10

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DOI: 10.1007/978-1-4615-1245-5_10

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