JPS5613783A - Superconductor point contact type josephson element - Google Patents

Superconductor point contact type josephson element

Info

Publication number
JPS5613783A
JPS5613783A JP8969779A JP8969779A JPS5613783A JP S5613783 A JPS5613783 A JP S5613783A JP 8969779 A JP8969779 A JP 8969779A JP 8969779 A JP8969779 A JP 8969779A JP S5613783 A JPS5613783 A JP S5613783A
Authority
JP
Japan
Prior art keywords
layer
nb3ge
point contact
superconductor
free end
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.)
Granted
Application number
JP8969779A
Other languages
Japanese (ja)
Other versions
JPS5837704B2 (en
Inventor
Makoto Hikita
Haruo Yoshikiyo
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 JP54089697A priority Critical patent/JPS5837704B2/en
Publication of JPS5613783A publication Critical patent/JPS5613783A/en
Publication of JPS5837704B2 publication Critical patent/JPS5837704B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N60/00—Superconducting devices
    • H10N60/10—Junction-based devices
    • H10N60/12—Josephson-effect devices

Landscapes

  • Superconductor Devices And Manufacturing Methods Thereof (AREA)

Abstract

PURPOSE:To obtain a very small radius of curvature and minimize a contact area when making a Josephson element by point-contacting the tip of a needle shaped superconductor electrode to a superconductor electrode, and by constructing at least the point contact part of Nb3Ge. CONSTITUTION:The free end surface 21 of a base wire body 22 which constitutes a superconductor electrode 25 is made into a flat surface, the entire surface of the wire body 22 including the flat surface is coated with a superconductive layer 23 consisting of Nb3Ge by the chemical vapor deposition method and the layer 23 on the free end surface 21 is ground by a chemical means to make a flat contact surface 24. Also over the surface of a needle shaped superconductor electrode 31 consisting of a base wire body 28 whose free end contacting the surface 24 is made into a pointed tip 26, a similar Nb3Ge layer 29 is formed, and by grinding the pointed tip 26, the layer 29 of this part is made into a needle shape. By so doing, this needle shaped part can be made into a form with a small radius of curvature within several mum and a good point contact can be obtained.
JP54089697A 1979-07-13 1979-07-13 Superconductor point contact Josephson device Expired JPS5837704B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54089697A JPS5837704B2 (en) 1979-07-13 1979-07-13 Superconductor point contact Josephson device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54089697A JPS5837704B2 (en) 1979-07-13 1979-07-13 Superconductor point contact Josephson device

Publications (2)

Publication Number Publication Date
JPS5613783A true JPS5613783A (en) 1981-02-10
JPS5837704B2 JPS5837704B2 (en) 1983-08-18

Family

ID=13977950

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54089697A Expired JPS5837704B2 (en) 1979-07-13 1979-07-13 Superconductor point contact Josephson device

Country Status (1)

Country Link
JP (1) JPS5837704B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58117861U (en) * 1982-02-03 1983-08-11 株式会社シマノ Spool attachment/detachment structure for fishing reels
JPS617536A (en) * 1984-06-20 1986-01-14 Toshiba Corp Oxide cathode structure
JPS62271388A (en) * 1986-05-16 1987-11-25 松下電器産業株式会社 Cartridge heater

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3565048A4 (en) 2016-12-28 2020-07-29 Showa Denko K.K. Redox flow battery

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5386687A (en) * 1977-01-10 1978-07-31 Sumitomo Electric Ind Ltd Preparation of nb3ge crystal
JPS53120354A (en) * 1977-03-30 1978-10-20 Nippon Telegr & Teleph Corp <Ntt> Josephson junction element of coaxial type for ultra-high frequency

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5386687A (en) * 1977-01-10 1978-07-31 Sumitomo Electric Ind Ltd Preparation of nb3ge crystal
JPS53120354A (en) * 1977-03-30 1978-10-20 Nippon Telegr & Teleph Corp <Ntt> Josephson junction element of coaxial type for ultra-high frequency

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58117861U (en) * 1982-02-03 1983-08-11 株式会社シマノ Spool attachment/detachment structure for fishing reels
JPH0142460Y2 (en) * 1982-02-03 1989-12-12
JPS617536A (en) * 1984-06-20 1986-01-14 Toshiba Corp Oxide cathode structure
JPS62271388A (en) * 1986-05-16 1987-11-25 松下電器産業株式会社 Cartridge heater

Also Published As

Publication number Publication date
JPS5837704B2 (en) 1983-08-18

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