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

In: Macroscopic Quantum Coherence and Quantum Computing

Author

Listed:
  • 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)

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.

Suggested Citation

  • Francesco Tafuri & Franco Carillo & Filomena Lombardi & Fabio Miletto Granozio & Fabrizio Ricci & Umberto Scotti di Uccio & Antonio Barone & Gianluca Testa & Ettore Sarnelli & John R. Kirtley, 2001. "Biepitaxial YBa2Cu3O7-x Grain Boundary Josephson Junctions: 0- and π- Rings for Fundamental Studies and Potential Circuit Implementation," Springer Books, in: Dmitri V. Averin & Berardo Ruggiero & Paolo Silvestrini (ed.), Macroscopic Quantum Coherence and Quantum Computing, pages 83-100, Springer.
    • Handle: RePEc:spr:sprchp:978-1-4615-1245-5_10
    DOI: 10.1007/978-1-4615-1245-5_10
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