• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Two-electron spin pairs in charge pumping under magnetic resonance condition

Research Project

Project/Area Number 16H06087
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Electron device/Electronic equipment
Research InstitutionShizuoka University

Principal Investigator

Hori Masahiro  静岡大学, 電子工学研究所, 講師 (50643269)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥25,350,000 (Direct Cost: ¥19,500,000、Indirect Cost: ¥5,850,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2017: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥15,470,000 (Direct Cost: ¥11,900,000、Indirect Cost: ¥3,570,000)
KeywordsシリコンMOSFET / 界面欠陥 / チャージポンピング法 / 電子スピン共鳴法 / EDMR法 / 信頼性評価 / 再結合過程 / 量子情報 / シリコン / MOSFET / ドーパント / チャージポンピング / EDMR / 電子スピン共鳴 / ダングリングボンド / 量子準位 / 電子スピン / 半導体デバイス
Outline of Final Research Achievements

Gate-pulse-induced electron-hole recombination is a fundamental phenomenon in semiconductors, and is widely used for analyzing the defects at metal-oxide-semiconductor (MOS) interfaces called as the charge pumping (CP) method. In this study, the CP under the electron spin resonance condition was conducted in silicon MOS transistors. The results showed that two major defects at the Si(100)/SiO2 interface participate in the CP process. Moreover, the two-electron CP process was proposed based on the analysis of the resonance signals.

Academic Significance and Societal Importance of the Research Achievements

本研究課題では、従来の「チャージポンピング法」と「電子スピン共鳴法」を組み合わせることで、シリコン・トランジスタの界面欠陥を高精度で観測する手法を確立した。これにより、界面欠陥の電子スピンの状態を高精度で観測することが可能となり、トランジスタの性能劣化の原因となる界面欠陥の構造を同定することに成功した。本研究課題で確立した手法は、トランジスタの信頼性評価、ならびに、量子情報処理における電子スピン制御の分野において、新たな分析手法となることが期待される。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (57 results)

All 2020 2019 2018 2017 2016 Other

All Journal Article (12 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 12 results,  Open Access: 1 results,  Acknowledgement Compliant: 3 results) Presentation (41 results) (of which Int'l Joint Research: 16 results,  Invited: 11 results) Remarks (4 results)

  • [Journal Article] Coulomb-blockade transport in selectively-doped Si nano-transistors2019

    • Author(s)
      A. Afiff, A. Samanta, A. Udhiarto, H. Sudibyo, M. Hori, Y. Ono, M. Tabe, D. Moraru
    • Journal Title

      Appl. Phys. Express

      Volume: 12 Issue: 8 Pages: 085004-085004

    • DOI

      10.7567/1882-0786/ab2cd7

    • NAID

      210000156539

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Charge pumping under spin resonance in Si(100) metal-oxide-semiconductor transistors2019

    • Author(s)
      M. Hori, Y. Ono
    • Journal Title

      Physical Review Applied

      Volume: 11 Issue: 6

    • DOI

      10.1103/physrevapplied.11.064064

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Single-charge band-to-band tunneling via multiple-dopant clusters in nanoscale Si Esaki diodes2019

    • Author(s)
      G. Prabhudesai, M. Muruganathan, L. T. Anh, H. Mizuta, M. Hori, Y. Ono, M. Tabe, D. Moraru
    • Journal Title

      Appl. Phys. Lett.

      Volume: 114 Issue: 24

    • DOI

      10.1063/1.5100342

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Electron aspirator using electron-electron scattering in nanoscale silicon2018

    • Author(s)
      Firdaus Himma、Watanabe Tokinobu、Hori Masahiro、Moraru Daniel、Takahashi Yasuo、Fujiwara Akira、Ono Yukinori
    • Journal Title

      Nature Communications

      Volume: 9 Issue: 1 Pages: 48131-48131

    • DOI

      10.1038/s41467-018-07278-8

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Detection of single holes generated by impact ionization in silicon2018

    • Author(s)
      Firdaus Himma、Watanabe Tokinobu、Hori Masahiro、Moraru Daniel、Takahashi Yasuo、Fujiwara Akira、Ono Yukinori
    • Journal Title

      Applied Physics Letters

      Volume: 113 Issue: 16 Pages: 163103-163103

    • DOI

      10.1063/1.5046865

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Detection and Characterization of Single Near-Interface Oxide Traps with the Charge Pumping Method2018

    • Author(s)
      T. Tsuchiya, M. Hori, Y. Ono
    • Journal Title

      Proceedings of 2018 IEEE International Symposium on the Physical and Failure Analysis of Integrated Circuits (IPFA)

      Volume: - Pages: 1-4

    • DOI

      10.1109/ipfa.2018.8452495

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Real-time Monitoring of Charge-pumping Process for SiO2/Si Interface Analysis2017

    • Author(s)
      M. Hori, T. Watanabe and Y. Ono
    • Journal Title

      Intl. Symp. Elec. and Com. Eng

      Volume: - Pages: 52-56

    • DOI

      10.1109/qir.2017.8168450

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Single-electron quantization at room temperature in a-few-donor quantum dot in silicon nano-transistors2017

    • Author(s)
      A.Samanta, M.Muruganathan, M.Hori, Y.Ono, H.Mizuta, M.Tabe, D.Moraru
    • Journal Title

      Appl.Phys.Lett.

      Volume: 110 Issue: 9

    • DOI

      10.1063/1.4977836

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Improvement of charge-pumping electrically detected magnetic resonance and its application to silicon metal-oxide-semiconductor field-effect transistor2017

    • Author(s)
      M.Hori, T.Tsuchiya, Y.Ono
    • Journal Title

      Appl. Phys. Express

      Volume: 10 Issue: 1 Pages: 015701-015701

    • DOI

      10.7567/apex.10.015701

    • NAID

      210000135738

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Time-domain charge pumping on silicon-on-insulator MOS devices2017

    • Author(s)
      T. Watanabe, M. Hori, T. Tsuchiya, A. Fujiwara, Y. Ono
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 56

    • NAID

      210000147329

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] EDMR on Recombination Process in Silicon MOSFET at Room Temperature2017

    • Author(s)
      M. Hori, Y. Ono
    • Journal Title

      Springer Series Advances in Intelligent Systems and Computing, Recent Global Research and Education :Technological Challenges

      Volume: 519 Pages: 89-93

    • DOI

      10.1007/978-3-319-46490-9_13

    • ISBN
      9783319464893, 9783319464909
    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Manipulation of Single Charges Using Dopant Atoms in Silicon - Interplay with Intervalley Phonon Emission2017

    • Author(s)
      Y. Ono, M. Hori, G. P. Lansbergen, A. Fujiwara
    • Journal Title

      Springer Series Advances in Intelligent Systems and Computing, Recent Global Research and Education :Technological Challenges

      Volume: 519 Pages: 137-141

    • DOI

      10.1007/978-3-319-46490-9_20

    • ISBN
      9783319464893, 9783319464909
    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] ナノスケール・シリコンにおける電子・電子散乱を利用したエレクトロン・アスピレーター2020

    • Author(s)
      小野行徳, ヒンマ フィルダウス, 渡邉時暢, 堀匡寛, ダニエル モラル, 高橋 庸夫, 藤原聡
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] シリコンMOSトランジスタにおける電子スピン共鳴下のチャージポンピング2020

    • Author(s)
      堀匡寛, 小野行徳
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] チャージポンピング法による単一Pb1センターの検出2020

    • Author(s)
      土屋敏章, 堀匡寛, 小野行徳
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Charge Pumping in Silicon MOSFETs-Towards Ultimate Control of Charges and Spins-2019

    • Author(s)
      M. Hori, T. Tsuchiya, Y. Ono
    • Organizer
      8th International Symposium on Control of Semiconductor Interfaces (ISCSI-VIII)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Si electron nano-aspirator en-route for energy-efficient hydro-electronic devices2019

    • Author(s)
      M. Rasanoelina, H. Firdaus, T. Watanabe, M. Hori, D. Moraru, Y. Takahashi, A. Fujiwara, Y. Ono
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] シリコンMOS界面のチャージポンピングEDMRにおける信号強度の温度依存性2019

    • Author(s)
      堀匡寛, 土屋敏章, 小野行徳
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 単一MOS 界面トラップの2 電子準位の相関I -準位密度分布-2019

    • Author(s)
      土屋敏章, 堀匡寛, 小野行徳
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 単一MOS 界面トラップの2 電子準位の相関 II -電子捕獲過程-2019

    • Author(s)
      土屋敏章, 堀匡寛, 小野行徳
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Charge pumping EDMR on silicon MOSFETs2019

    • Author(s)
      M. Hori, Y. Ono
    • Organizer
      5th International Conference on Nanoscience and Nanotechnology (ICONN2019)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] シリコンMOS界面におけるチャージポンピングEDMR2019

    • Author(s)
      堀匡寛、土屋敏章、小野行徳
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 2トラップ間のチャージポンピング相互作用2019

    • Author(s)
      土屋敏章、堀匡寛、小野行徳
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Effect of dimensionality on the formation of dopant-induced quantum-dots in heavily doped Si Esaki diodes2019

    • Author(s)
      G. Prabhudesai, M. Manoharan, M. Hori, Y. Ono, H. Mizuta, M. Tabe, D. Moraru
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Remote Detection of Holes Generated by Impact Ionization2018

    • Author(s)
      H. Firdaus, M. Hori, Y. Ono
    • Organizer
      The 17th International Conference on Global Research and Education (Inter-Adademia 2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Detection and Characterization of Single Near-Interface Oxide Traps with the Charge Pumping Method2018

    • Author(s)
      T. Tsuchiya, M. Hori, Y. Ono
    • Organizer
      2018 IEEE International Symposium on the Physical and Failure Analysis of Integrated Circuits (IPFA)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] チャージポンピングEDMR 法を用いたSiO2/Si 界面の欠陥検出2018

    • Author(s)
      堀匡寛、小野行徳
    • Organizer
      2018 年日本表面真空学会中部支部研究会『Si 表面・界面・ナノ構造の研究最前線』
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Silicon-on-insulatorデバイスにおける低温チャージポンピング2018

    • Author(s)
      渡邉時暢、堀匡寛、小野行徳
    • Organizer
      電子情報通信学会 シリコン材料・デバイス研究会
    • Related Report
      2017 Annual Research Report
  • [Presentation] PtHfSi/p-Si(100)ショットキー接合の低温特性2018

    • Author(s)
      渡邉時暢、多胡友、杉浦史悦、堀匡寛、小野行徳、塚本裕也、大見俊一郎
    • Organizer
      平成29年度生体医歯工学共同研究拠点成果報告会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 身近な糖を燃料とするバイオ発電デバイスの開発2018

    • Author(s)
      三宅丈雄、堀匡寛、小野行徳
    • Organizer
      平成29年度生体医歯工学共同研究拠点成果報告会
    • Related Report
      2017 Annual Research Report
  • [Presentation] チャージポンピングEDMR法を用いたシリコン酸化膜界面欠陥の検出2018

    • Author(s)
      堀匡寛、土屋敏章、小野行徳
    • Organizer
      第65回応用物理学会春季学術講演会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] チャージポンピング法によるSi/SiO2界面近傍酸化膜トラップの評価2018

    • Author(s)
      土屋敏章、堀匡寛、小野行徳
    • Organizer
      第65回応用物理学会春季学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] チャージポンピングEDMR法における信号強度の温度異存性評価2018

    • Author(s)
      安藤克哉、堀匡寛、土屋敏章、小野行徳
    • Organizer
      第65回応用物理学会春季学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] シリコンにおけるチャージポンプー電荷とスピンの室温極限操作に向けてー2017

    • Author(s)
      小野 行徳、堀 匡寛、土屋 敏章
    • Organizer
      第29回シリサイド系半導体研究会
    • Place of Presentation
      八洲学園大学、神奈川県横浜市
    • Year and Date
      2017-03-17
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Silicon-on-insulator MOS デバイスにおける実時間チャージポンピングの応用2017

    • Author(s)
      渡邉 時暢、堀 匡寛、土屋 敏章、藤原 聡、小野 行徳
    • Organizer
      第64回応用物理学会春季学術講演会
    • Place of Presentation
      パシフィコ横浜、神奈川県横浜市
    • Year and Date
      2017-03-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] Study of Electron Localization Effects in Donor-Acceptor Pairs in Low-Dimensional Si Tunnel Diodes2017

    • Author(s)
      G. Prabhudesai, T. Anh, M. Shibuya, M. Manoharan, M. Hori, Y. Ono, H. Mizuta, M. Tabe, D. Moraru
    • Organizer
      第64回応用物理学会春季学術講演会
    • Place of Presentation
      パシフィコ横浜、神奈川県横浜市
    • Year and Date
      2017-03-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] Study of Stability of A-few-donor Quantum Dots with Different Configurations for Room-Temperature Single-Electron Tunneling Operation2017

    • Author(s)
      T. Hasan, A. Samanta, A. Afiff, T. Anh, M. Manoharan, M. Hori, Y. Ono, H. Mizuta, M. Tabe, D. Moraru
    • Organizer
      第64回応用物理学会春季学術講演会
    • Place of Presentation
      パシフィコ横浜、神奈川県横浜市
    • Year and Date
      2017-03-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] SOI MOS p-i-nダイオードの低温チャージポンピング2017

    • Author(s)
      渡邉 時暢、堀 匡寛、小野 行徳
    • Organizer
      電子情報通信学会研究会
    • Place of Presentation
      北海道大学、北海道札幌市
    • Year and Date
      2017-02-24
    • Related Report
      2016 Annual Research Report
  • [Presentation] Observation of Impact Ionization in Silicon at Low Temperature2017

    • Author(s)
      Y. Ono, H. Firdaus, and M. Hori
    • Organizer
      IV Bilateral Italy-Japan Seminar
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Charge pumping EDMR towards ultimate charge/spin control at room temperature in silicon2017

    • Author(s)
      M. Hori and Y. Ono
    • Organizer
      IV Bilateral Italy-Japan Seminar
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Sensitive Detection of Holes Generated by Impact Lonization in Silicon2017

    • Author(s)
      H. Firdaus, M. Hori, Y. Takahashi, A. Fujiwara, and Y. Ono
    • Organizer
      2017 IEEE Silicon Nanoelectronics Workshop
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Real-time Monitoring of Charge-pumping Process for SiO2/Si Interface Analysis2017

    • Author(s)
      M. Hori, T. Watanabe, and Y. Ono
    • Organizer
      The 15th International Conference on QiR
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Charge Pumping EDMR for Si/SiO2 Interface Analysis2017

    • Author(s)
      M. Hori
    • Organizer
      The 2nd International Symposium on Biomedical Engineering
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] チャージポンピングEDMR法を用いたシリコン酸化膜界面欠陥の検出2017

    • Author(s)
      堀匡寛、土屋敏章、小野行徳
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Charge pumping EDMR for MOS interface analysis2016

    • Author(s)
      M.Hori, Y.Ono
    • Organizer
      The 18th Takayanagi Kenjiro Memorial Symposium
    • Place of Presentation
      Shizuoka University, Hamamatsu, JAPAN
    • Year and Date
      2016-11-15
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Silicon Single Boron Transistor2016

    • Author(s)
      Y.Ono, M.Hori, A.Fujiwara
    • Organizer
      The 3rd International Conference on Nano Electronics Research and Education (ICNERE2016)
    • Place of Presentation
      Malang, INDONESIA
    • Year and Date
      2016-10-31
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] EDMR on recombination process in Silicon MOSFETs at room Temperature2016

    • Author(s)
      M.Hori, Y.Ono
    • Organizer
      15th International Conference on Global Research and Education (Inter-Academia 2016)
    • Place of Presentation
      Warsaw University, POLAND
    • Year and Date
      2016-09-26
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Manipulation of Single Charges Using Dopant Atoms in Silicon-Interplay with Intervalley Phonon Emission2016

    • Author(s)
      Y.Ono, M.Hori, G.P.Lansbergen, A.Fujiwara
    • Organizer
      15th International Conference on Global Research and Education (Inter-Academia 2016)
    • Place of Presentation
      Warsaw University, POLAND
    • Year and Date
      2016-09-26
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高感度チャージポンピングEDMR法の開発2016

    • Author(s)
      堀 匡寛、成松 諒一、土屋 敏章、小野 行徳
    • Organizer
      第77回応用物理学会秋季学術講演会
    • Place of Presentation
      朱鷺メッセ、新潟県新潟市
    • Year and Date
      2016-09-13
    • Related Report
      2016 Annual Research Report
  • [Presentation] Analysis of phonon assistance as a function of temperature in inter-band tunneling in 2D Si lateral Esaki diodes2016

    • Author(s)
      D.Moraru, M.Shibuya, R.Nuryadi, M.Hori, Y.Ono, M.Tabe
    • Organizer
      第77回応用物理学会秋季学術講演会
    • Place of Presentation
      朱鷺メッセ、新潟県新潟市
    • Year and Date
      2016-09-13
    • Related Report
      2016 Annual Research Report
  • [Presentation] Time domain charge pumping on silicon-on-insulator MOS transistors2016

    • Author(s)
      T. Watanabe, M.Hori, Y.Ono
    • Organizer
      2016 Asia-Pacific Workshop on Fundamentals and Applications of Advanced Semiconductor Devices (AWAD2016)
    • Place of Presentation
      Hakodate Kokusai Hotel, Hakodate, JAPAN
    • Year and Date
      2016-07-04
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Charge pumping EDMR towards charge/spin manipulation in silicon at room temperature2016

    • Author(s)
      M.Hori, R.Narimatsu, Y. Ono
    • Organizer
      2016 IEEE Silicon Nanoelectronics Workshop (SNW2016)
    • Place of Presentation
      Hilton Hawaiian Village, Honolulu, USA
    • Year and Date
      2016-06-12
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Novel application of the charge pumping process for charge and spin control2016

    • Author(s)
      M. Hori, Y. Ono
    • Organizer
      EMN Meeting on Quantum 2016 (EMN2016)
    • Place of Presentation
      Holiday Inn Resort Phuket, Phuket, THAILAND
    • Year and Date
      2016-04-08
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Remarks] 研究室ホームページ

    • URL

      https://wwp.shizuoka.ac.jp/nano/

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report 2016 Annual Research Report
  • [Remarks] 静岡大学プレスリリース「トランジスタ界面欠陥の高精度観測技術を確立」2019年06月24日

    • URL

      https://www.shizuoka.ac.jp/pressrelease/pdf/2019/PressRelease_11.pdf

    • Related Report
      2019 Annual Research Report
  • [Remarks] OPTRONICS ONLINE「静大,トランジスタ界面欠陥を高精度で観測」2019年06月25日

    • URL

      http://www.optronics-media.com/news/20190625/58192/

    • Related Report
      2019 Annual Research Report
  • [Remarks] 静岡大学電子工学研究所 小野・堀研究室ホームページ

    • URL

      https://wwp.shizuoka.ac.jp/nano/

    • Related Report
      2017 Annual Research Report

URL: 

Published: 2016-04-21   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi