Patent · US Expired

Intrinsic Josephson superconducting tunnel junction device

US6441394B2 · kind B2 · utility

3Cited by

3References

23Claims

0Family size

Assignee

National Institute of Advanced Industrial Science and Technology · JP

Inventors

Yuji Kasai · Hitachinaka, JP
Shigeki Sakai · Tsukuba, JP

Key dates

Filing date	Dec 26, 2000
Grant date	Aug 27, 2002
Priority date	—
Expiry date	Feb 1, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S505/782

Abstract

Using an oxide superconductor that does not require cryogenic temperatures, a superconducting tunnel junction device is provided which can accurately control the magnitudes of critical current and step voltage necessary for electronics applications and which has good characteristics as designed. The intrinsic Josephson superconducting tunnel junction device includes an oxide superconductor defined by a general expression (I): Bi2−zPbzSr2Can(1−x)RnxCun+1O2n+6 (n&gE;1, 0<x&lE;0.2, 0&lE;z&lE;1.0, R: rare-earth element).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.