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Developing superconducting tunnel junction kinetic energy detectors for a precise evaluation of the molecular evolution in the Galaxy

Research Project

Project/Area Number 15H03599
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Quantum beam science
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Ukibe Masahiro  国立研究開発法人産業技術総合研究所, エレクトロニクス・製造領域, 研究グループ長 (00344226)

Co-Investigator(Kenkyū-buntansha) 笹 公和  筑波大学, 数理物質系, 准教授 (20312796)
冨田 成夫  筑波大学, 数理物質系, 准教授 (30375406)
志岐 成友  国立研究開発法人産業技術総合研究所, エレクトロニクス・製造領域, 主任研究員 (50342796)
藤井 剛  国立研究開発法人産業技術総合研究所, エレクトロニクス・製造領域, 主任研究員 (30709598)
大久保 雅隆  国立研究開発法人産業技術総合研究所, エレクトロニクス・製造領域, 研究部門付 (60356623)
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2018: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2017: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2015: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
KeywordsALD / NbN / Nb/Al STJ / DR反応 / 粒子検出器 / 運動エネルギー / NbN-STJ / 中性粒子 / 運動エネルギー測定 / 超伝導材料・素子 / ジョセフソン接合 / 原子層堆積法 / フルエピタキシャルNbN/AlN/NbN / 解離性再結合過程 / 超伝導トンネル接合素子 / 超伝導転移温度 / 窒化ニオブ / X線検出 / 原子イオン
Outline of Final Research Achievements

We have deposited a thin NbN superconducting film for the first time by atomic layer deposition (ALD) process and realized a highest superconducting transition temperature of 12.7K at that time. We tried to fabricate NbN/AlN/NbN superconducting tunnel junction (STJ) particle detectors based on NbN/AlN/NbN multilayers deposited by ALD process. Although the kinetic energy detection wasn’t realized by the above NbN STJ particle detectors, we succeed in evaluating the kinetic energy of C- ion by using Nb/Al STJ particle detectors. And the Nb/Al STJ particle detector exhibited a high energy resolution of 1.1 keV for 20 keV, which means that by using Nb/Al STJ particles detector, it is possible to distinguish clearly C particles dissociated from carbohydrate molecules (C6) by dissociative recombination (DR) processes. It was found that we can analysis the DR process precisely by combining Nb/Al STJ particle detectors and electrostatic ion storage rings.

Academic Significance and Societal Importance of the Research Achievements

世界で初めてALDを用いてNbN膜を作製、作製時の世界最高の転移温度12.7Kを実現、超伝導成膜技術に新たな展開をもたらし、その後の世界のALDベースの超伝導デバイス研究の端緒を開いた。ALD製STJ素子作製は実現しなかったが、スパッタNb/Al多層膜からなるSTJ粒子検出器で炭素イオン (C-)の運動エネルギーを測定、1.1 keV@20 keVという良好なエネルギー分解能を実現、炭化水素分子(C6)からのCの解離を弁別可能な粒子検出器を得る事が出来、STJ粒子検出器と静電型イオン蓄積リングの組みあわせによりDR過程の詳細解析が可能となることを示し、今後の分子進化研究推進の基礎を確立した。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (11 results)

All 2019 2018 2017 2016 2015

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results,  Acknowledgement Compliant: 2 results) Presentation (9 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Superconducting Characteristics of NbN Films Deposited by Atomic Layer Deposition2017

    • Author(s)
      Masahiro Ukibe, Go Fujii
    • Journal Title

      IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY

      Volume: 27 Issue: 4 Pages: 22014041-4

    • DOI

      10.1109/tasc.2017.2655719

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Modification of Layer Structures of Superconducting Tunnel Junctions to Improve X-ray Energy Resolution2016

    • Author(s)
      浮辺 雅宏、藤井 剛、大久保 雅隆
    • Journal Title

      JOURNAL OF LOW TEMPERATURE PHYSICS

      Volume: - Issue: 1-2 Pages: 200-205

    • DOI

      10.1007/s10909-016-1488-x

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 超伝導トンネル接合重イオン検出器のイオン検出特性評価2019

    • Author(s)
      志岐 成友、藤井 剛、浮辺 雅宏、岩井 雄佑、菅沼 瑠里、冨田 成夫
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 超伝導トンネル接合重イオン検出器の特性評価環境の構築2018

    • Author(s)
      志岐 成友、藤井 剛、浮辺 雅宏、岩井 雄佑、菅沼 瑠里、冨田 成夫
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 原子層堆積法で成膜したNbN/AlN/NbN多層膜の 結晶性評価2018

    • Author(s)
      浮辺 雅宏、藤井 剛、志岐 成友、大久保雅隆
    • Organizer
      第65回日本応用物理学会 春季学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 原子層堆積法により成膜した窒化ニオブ(NbN)膜の超伝導特性2016

    • Author(s)
      浮辺雅宏、藤井 剛、志岐 成友、大久保 雅隆
    • Organizer
      第63回応用物理学会春季学術講演会
    • Place of Presentation
      東工大 大岡山キャンパス(東京都)
    • Year and Date
      2016-03-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] Superconducting characteristics of NbN films deposited by atomic layer deposition (ALD) process2016

    • Author(s)
      Masahiro Ukibe, Go Fujii
    • Organizer
      2016 Applied Superconductivity Conference
    • Place of Presentation
      America, Denver
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Improving superconducting characteristics of ALD-NbN films by Rapid Thermal Annealing (RTA) process2016

    • Author(s)
      Masahiro Ukibe, Go Fujii, Shigetomo Shiki, Masataka Ohkubo
    • Organizer
      第77回応用物理学会秋季学術講演会
    • Place of Presentation
      新潟、新潟市
    • Related Report
      2016 Annual Research Report
  • [Presentation] 筑波大学マルチタンデム加速器施設の現状2015

    • Author(s)
      笹 公和,石井 聡,大島 弘行,木村 博美,高橋 努,田島 義一,大和 良広,関場 大一郎,森口 哲朗,喜多 英治
    • Organizer
      第12回日本加速器学会年会
    • Place of Presentation
      プラザ萬象・あいあいプラザ(福井県)
    • Year and Date
      2015-08-05
    • Related Report
      2015 Annual Research Report
  • [Presentation] X-ray detection performance of superconducting tunnel junctions with new layer structur2015

    • Author(s)
      浮辺 雅宏、藤井 剛、大久保 雅隆
    • Organizer
      The International Workshop on Low Temperature Detectors 16th
    • Place of Presentation
      World trade center, グルノーブル(フランス)
    • Year and Date
      2015-07-20
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Glycoproteomics using an electrostatic storage ring2015

    • Author(s)
      高橋勝利、冨田成夫、志岐成友、浮辺雅宏、田邊徹美、大久保雅隆
    • Organizer
      6th International Workshop on Electrostatic Storage Devices
    • Place of Presentation
      東京首都大学(東京都)
    • Year and Date
      2015-06-08
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2020-03-30  

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