JPS646779A - Multiple type dc squid magnetometer - Google Patents

Multiple type dc squid magnetometer

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Publication number
JPS646779A
JPS646779A JP16059887A JP16059887A JPS646779A JP S646779 A JPS646779 A JP S646779A JP 16059887 A JP16059887 A JP 16059887A JP 16059887 A JP16059887 A JP 16059887A JP S646779 A JPS646779 A JP S646779A
Authority
JP
Japan
Prior art keywords
loops
type
josephson junction
superconducting
parallel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP16059887A
Other languages
Japanese (ja)
Inventor
Yujiro Kato
Hidefumi Asano
Keiichi Tanabe
Shugo Kubo
Osamu Michigami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP16059887A priority Critical patent/JPS646779A/en
Publication of JPS646779A publication Critical patent/JPS646779A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To obtain a high performance magnetometer, by using parallel superconductive type loops for SQUID loops, using parallel superconducting type loops for input coils, using a planar type gradiometer for a pickup coil, and using an oxide conductor at a high critical temperature for a Josephson junction. CONSTITUTION:As SQUID loops 8 having Josephson junctions, parallel superconducting loops are used. Signal input coils 7 are meandering type coils. As a pickup coil 6, a planar type gradiometer is used. Element dc SQUIDs having this constitution are formed on a substrate in a matrix pattern of mXn. Thus, the multiple type dc SQUIDs are obtained. For electrode material and superconducting wirings of the Josephson junction, one or more kinds of superconductive oxide materials, which are selected among (M11-xM2x)yCuOz, are used. In this formula: 0<x<1; 1<=y<=2; 2<=z<=4; M1 represents group III metals such as Sc and Y; and M2, group II metals such as Be and Wg. As a tunnel barrier for the Josephson junction, CuOx, MoOx or VOx is used.
JP16059887A 1987-06-27 1987-06-27 Multiple type dc squid magnetometer Pending JPS646779A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16059887A JPS646779A (en) 1987-06-27 1987-06-27 Multiple type dc squid magnetometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16059887A JPS646779A (en) 1987-06-27 1987-06-27 Multiple type dc squid magnetometer

Publications (1)

Publication Number Publication Date
JPS646779A true JPS646779A (en) 1989-01-11

Family

ID=15718405

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16059887A Pending JPS646779A (en) 1987-06-27 1987-06-27 Multiple type dc squid magnetometer

Country Status (1)

Country Link
JP (1) JPS646779A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5218297A (en) * 1988-02-05 1993-06-08 Hitachi, Ltd. Superconductive quantum interference device in high temperature environments having reduced inductance and improved thermal noise response
CN113517386A (en) * 2020-08-06 2021-10-19 阿里巴巴集团控股有限公司 Josephson junction, preparation method and device of josephson junction and superconducting circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5218297A (en) * 1988-02-05 1993-06-08 Hitachi, Ltd. Superconductive quantum interference device in high temperature environments having reduced inductance and improved thermal noise response
CN113517386A (en) * 2020-08-06 2021-10-19 阿里巴巴集团控股有限公司 Josephson junction, preparation method and device of josephson junction and superconducting circuit
US11910730B2 (en) 2020-08-06 2024-02-20 Alibaba Group Holding Limited Josephson junction, Josephson junction preparation method and apparatus, and superconducting circuit

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