Presentation 2014-10-15
Fabrication of three-dimensional superconducting tunnel junctions
Go FUJII, Masahiro UKIBE, Shigetomo SHIKI, Masataka OHKUBO,
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Abstract(in English) In order to achieve a high throughput analysis of X-ray absorption fine structure (XAFS) with superconducting tunnel junction (STJ) array detectors, the pixel number of the array detectors should be further increased up to more than 1000 to enlarge the sensitive area. In this work, we have fabricated the STJ with three-dimensional structure by embedding a wiring layer in a SiO_2 isolation layer underneath a base electrode of STJs. The fabricated STJ showed excellent current-voltage characteristics having low subgap currents less than 2 nA.
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Keyword(in English) Superconducting tunnel junction / Soft X-ray detector / Three-dimensional structure / X-ray absorption fine structure / Nb/Al
Paper # SCE2014-35
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Committee SCE
Conference Date 2014/10/8(1days)
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Registration To Superconductive Electronics (SCE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Fabrication of three-dimensional superconducting tunnel junctions
Sub Title (in English)
Keyword(1) Superconducting tunnel junction
Keyword(2) Soft X-ray detector
Keyword(3) Three-dimensional structure
Keyword(4) X-ray absorption fine structure
Keyword(5) Nb/Al
1st Author's Name Go FUJII
1st Author's Affiliation Research Instrumentation Frontier, National Institute of Advanced Industrial Science and Technoloby()
2nd Author's Name Masahiro UKIBE
2nd Author's Affiliation Research Instrumentation Frontier, National Institute of Advanced Industrial Science and Technoloby
3rd Author's Name Shigetomo SHIKI
3rd Author's Affiliation Research Instrumentation Frontier, National Institute of Advanced Industrial Science and Technoloby
4th Author's Name Masataka OHKUBO
4th Author's Affiliation Research Instrumentation Frontier, National Institute of Advanced Industrial Science and Technoloby
Date 2014-10-15
Paper # SCE2014-35
Volume (vol) vol.114
Number (no) 247
Page pp.pp.-
#Pages 4
Date of Issue