Quase particle injection control type superdoductor loose coupling element

Abstract

Abstract PURPOSE:To improve integration degree, reliability and switching sensitivity and increase degree of freedom for circuit design by a method wherein a quasi particle injecting electrode is provided to a loose coupling part of a Josephson coupling and coupling characteristic are controlled. CONSTITUTION:In a Josephson element 10 which is composed of a couple of superconductors 1, 2 and a loose coupling part 3 by which the superconductors are electrically loose-coupled, the third electrode 4 for quasi particle injection made of regular conductive metal, super conductive metal or semiconductor is fitted to the loose coupling part 3 by a insulative barrier 5. With above configuration the Josephson coupling voltage is controlled and switched by applying a voltage to the electrode 4, so that the integration degree is increased.

Inventors

• 👤 Shigeki Sakai
• 👤 Hiroshi Tateno
• 👤 Terue Kataoka

Bibliographic Details