Presentation | 1993/7/26 Proximity Effect Coupling in a-axis YBCO/(Prx-Y1-x)BCO/YBCO Sandwich-Type Josephson Junctions Toshimasa Umezawa, D. Lew, S.K. Streiffer, M.R. Beasley, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | We have studied proximity coupling in a-axis YBCO, (Pr_x-Y_1-x>) BCO/YBCO sandwich-type Josephson junctions.Growth parameters for the films were optimized for smoothness of the barrier interfaces and the films were well chracterized by SEM,AFM,and TEM.Transport of the barrier was highly dependent upon the doping:for x = 0,the resistivity followed a T^-1/4> behavior and was ~10^5Ω-cm at 4.2 K;for x = 0.55,the resistivity was nearly,metallic and was 10^-1>Ω -cm at 4.2K.For the small junction regime Wλj,the critical curren t scaled with junction area,and was modulated by magnetic field.We compare our results to other SNS work and find that the coherence length of the barrier increases with the conductivity of the barrier material. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | sandwich-type junctions / Y-doped PBCO barrier / coherence length / variable range hopping |
Paper # | SCE93-19 |
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Committee | SCE |
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Conference Date | 1993/7/26(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) | Proximity Effect Coupling in a-axis YBCO/(Prx-Y1-x)BCO/YBCO Sandwich-Type Josephson Junctions |
Sub Title (in English) | |
Keyword(1) | sandwich-type junctions |
Keyword(2) | Y-doped PBCO barrier |
Keyword(3) | coherence length |
Keyword(4) | variable range hopping |
1st Author's Name | Toshimasa Umezawa |
1st Author's Affiliation | Yokogawa Electric Corporation() |
2nd Author's Name | D. Lew |
2nd Author's Affiliation | Stanford University |
3rd Author's Name | S.K. Streiffer |
3rd Author's Affiliation | Stanford University |
4th Author's Name | M.R. Beasley |
4th Author's Affiliation | Stanford University |
Date | 1993/7/26 |
Paper # | SCE93-19 |
Volume (vol) | vol.93 |
Number (no) | 166 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |