High quality Nb/Al-AlOx/Nb superconducting tunnel junctions for radiation detection

K Joosse; H Nakagawa; H Akoh; S Takada; K Maehata; K Ishibashi

doi:10.1063/1.116597

High quality Nb/Al-AlOx/Nb superconducting tunnel junctions for radiation detection

K Joosse
, H Nakagawa
, H Akoh
, S Takada
, K Maehata
, K Ishibashi

Research output: Contribution to journal › Article

15 Scopus citations

Abstract

Nb/Al-AlOx/Nb tunnel junctions designed for x-ray detection have been manufactured and characterized at temperatures down to 0.35 K. At a bias voltage of 0.5 mV, a leakage current of the order of 0.1 pA/mu m(2), and a dynamic resistance exceeding 10(6) times the normal state resistance, were achieved in junctions with dimensions up to 200 X 200 mu m(2) and critical current densities of order 200 A/cm(2). The combination of high critical current density, low leakage current, and large area represents an important step towards the development of superconducting tunnel junction detectors with improved spectroscopic performance. (C) 1996 American Institute of Physics.

Original language	English
Pages (from-to)	702-704
Number of pages	3
Journal	APPLIED PHYSICS LETTERS
Volume	68
Issue number	5
DOIs	https://doi.org/10.1063/1.116597
State	Published - Jan 1996

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title = "High quality Nb/Al-AlOx/Nb superconducting tunnel junctions for radiation detection",

abstract = "Nb/Al-AlOx/Nb tunnel junctions designed for x-ray detection have been manufactured and characterized at temperatures down to 0.35 K. At a bias voltage of 0.5 mV, a leakage current of the order of 0.1 pA/mu m(2), and a dynamic resistance exceeding 10(6) times the normal state resistance, were achieved in junctions with dimensions up to 200 X 200 mu m(2) and critical current densities of order 200 A/cm(2). The combination of high critical current density, low leakage current, and large area represents an important step towards the development of superconducting tunnel junction detectors with improved spectroscopic performance. (C) 1996 American Institute of Physics.",

author = "K Joosse and H Nakagawa and H Akoh and S Takada and K Maehata and K Ishibashi",

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AU - Joosse, K

AU - Nakagawa, H

AU - Akoh, H

AU - Takada, S

AU - Maehata, K

AU - Ishibashi, K

N1 - Is international journal: true

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N2 - Nb/Al-AlOx/Nb tunnel junctions designed for x-ray detection have been manufactured and characterized at temperatures down to 0.35 K. At a bias voltage of 0.5 mV, a leakage current of the order of 0.1 pA/mu m(2), and a dynamic resistance exceeding 10(6) times the normal state resistance, were achieved in junctions with dimensions up to 200 X 200 mu m(2) and critical current densities of order 200 A/cm(2). The combination of high critical current density, low leakage current, and large area represents an important step towards the development of superconducting tunnel junction detectors with improved spectroscopic performance. (C) 1996 American Institute of Physics.

AB - Nb/Al-AlOx/Nb tunnel junctions designed for x-ray detection have been manufactured and characterized at temperatures down to 0.35 K. At a bias voltage of 0.5 mV, a leakage current of the order of 0.1 pA/mu m(2), and a dynamic resistance exceeding 10(6) times the normal state resistance, were achieved in junctions with dimensions up to 200 X 200 mu m(2) and critical current densities of order 200 A/cm(2). The combination of high critical current density, low leakage current, and large area represents an important step towards the development of superconducting tunnel junction detectors with improved spectroscopic performance. (C) 1996 American Institute of Physics.

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DO - 10.1063/1.116597

M3 - 記事

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JO - APPLIED PHYSICS LETTERS

JF - APPLIED PHYSICS LETTERS

IS - 5

ER -

High quality Nb/Al-AlOx/Nb superconducting tunnel junctions for radiation detection

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