Presentation | 1994/2/16 Andreev reflection currents in NbN-(Nb nanoconstriction)-Nb Akio Takada, Hiroya Abe, Masayuki Sasaki, Yoshiyuki Mogi, Katsuyoshi Hamasaki, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | We report on the fabrication and the quasiparticle characteristics for thin film Nb-(Nb nanoconstriction)- NbN short weak links prepared by applying electric field to an insulating Nb, MgO/NbNedge-sandwich with area of 0.2μm^2.The growth of Nb nanoco nstrictions in the MgO(-7nm thick)insulator layer connecting two superconducting banks is assisted by electric field in liquid helium.For an interpretation of device Quasiparticle characteristics,the Blonder,Tinkham and Klapwijk(BTK)theory£Phys.R ev.B25,4515(1982)!is used.The current-voltage curves are found to agree closely with the BTK prediction by assuming two- independent(series)with normal metalsuperconductor contacts. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Short weak links / BTK theory / quasiparticle characteristics / nanoconstriction |
Paper # | SCE93-62,CPM93-116 |
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Conference Information | |
Committee | SCE |
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Conference Date | 1994/2/16(1days) |
Place (in Japanese) | (See Japanese page) |
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Topics (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Superconductive Electronics (SCE) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Andreev reflection currents in NbN-(Nb nanoconstriction)-Nb |
Sub Title (in English) | |
Keyword(1) | Short weak links |
Keyword(2) | BTK theory |
Keyword(3) | quasiparticle characteristics |
Keyword(4) | nanoconstriction |
1st Author's Name | Akio Takada |
1st Author's Affiliation | Department of Electrical Engineering,Hakodate National College of Technology() |
2nd Author's Name | Hiroya Abe |
2nd Author's Affiliation | Department of Electrical Engineering,Faculty of Engineering, Nagaoka University of Technology |
3rd Author's Name | Masayuki Sasaki |
3rd Author's Affiliation | Department of Electrical Engineering,Faculty of Engineering, Nagaoka University of Technology |
4th Author's Name | Yoshiyuki Mogi |
4th Author's Affiliation | Department of Electrical Engineering,Faculty of Engineering, Nagaoka University of Technology |
5th Author's Name | Katsuyoshi Hamasaki |
5th Author's Affiliation | Department of Electrical Engineering,Faculty of Engineering, Nagaoka University of Technology |
Date | 1994/2/16 |
Paper # | SCE93-62,CPM93-116 |
Volume (vol) | vol.93 |
Number (no) | 461 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |