Updated on 2025/06/09

写真a

 
Kazuhiro Yamaki
 
Organization
School of Engineering Department of Fundamental Engineering / Information, Electronics, and Optics Course Associate Professor
Graduate School of Regional Development and Creativity Division of Engineering and Agriculture (Master's Course) Graduate Program in Information, Electrical and Electronic Systems Engineering Associate Professor
Graduate School of Regional Development and Creativity Division of Advanced Transdisciplinary Science (Doctor's Course) Advanced Engineering Systems Design Program Associate Professor
Title
Associate Professor
Contact information

メールアドレス

Homepage

https://researchmap.jp/rutheno-cuprate23?lang=en

https://nrid.nii.ac.jp/en/nrid/1000090579757/

Degree

  • D.Eng ( 2010.3   University of Tsukuba )

  • M.Eng ( 2007.3   University of Tsukuba )

  • B.Eng ( 2005.3   University of Tsukuba )

Research Interests

  • Single Crystal High Tc cuprate Superconductivity Intrinsic Josephson junctions

Research Areas

  • Nanotechnology/Materials / Applied physical properties

Research History

  • Utsunomiya University   Graduate School of Regional Development and Creativity Division of Engineering and Agriculture (Master's Course) Graduate Program in Information, Electrical and Electronic Systems Engineering   Associate Professor

    2021.4 - Present

  • Utsunomiya University   Graduate School of Regional Development and Creativity Division of Advanced Transdisciplinary Science (Doctor's Course) Advanced Engineering Systems Design Program   Associate Professor

    2021.4 - Present

  • Utsunomiya University   School of Engineering Department of Fundamental Engineering / Information, Electronics, and Optics Course   Associate Professor

    2021.4 - Present

Committee Memberships for Association and Group

  • （一社）電子情報通信学会   英文論文誌小特集編集委員会編集委員  

    2022.6 - 2023.6   

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    Committee type：Academic society

 

Papers

  • Preparation of RuEu‑1212 and RuEu‑1222 Large Single‑Crystalline Grains by Partial Melting Reviewed

    K. Yamaki, N. Kitagawa, T. Mochiku, Y. Matsuhita, S. Funahashi, A. Irie

    Journal of Superconductivity and Novel Magnetism   34   2207 - 2215   2021.7

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： doi.org/10.1007/s10948-021-05987-8

  • Preparation of superconducting RuGd-1222 single crystals by partial melting Reviewed

    Kazuhiro Yamaki Takashi Mochiku Keitaro Tezuka Akinobu Irie

    Physica C   580 ( 1353798 )   1 - 5   2021

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier  

  • Bulk superconductivity in RuGd-1212 single crystals Reviewed

    Shugo Funahashi Takashi Mochiku Yoshitaka Matsushita Yoshihiro Bamba Keitaro Tezauka

    Japanese Journal of Applied Physics   59   073002   2020.6

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    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

  • Dielectric properties of crystalline BiOCl in the terahertz region Reviewed

    T. Unuma T. Sasaki K. Yamaki A. Irie H. Ishida T. Kato

    OSA Continuum   3   2646 - 2652   2020

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    Language：English   Publishing type：Research paper (scientific journal)  

  • Synthesis and structure of rutheno-cuprate (RE, Ce)2Sr2RuCu2O10－d (RE = Gd, Eu) single crystals Reviewed

    K. Yamaki T. Mochiku Y. Matsushita M. Kitamura A. Irie

    Physica C: Superconductivity and its Applications   562   25 - 31   2019.7

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

  • Preparation of Fine Single Crystals of Rutheno-Cuprates by the Self-Flux Method with Alumina Boats Reviewed

    K. Yamaki Y. Bamba A. Irie

    J. Supercond. Nov. Magn.   32   1171 - 1177   2019.5

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

  • Synthesis and structural characterization of a superconducting GdSr2RuCu2O8－δ single crystal grown by partial melting Reviewed

    K. Yamaki T. Mochiku S. Funahashi Y. Bamba M. Kitamura

    Appl. Phys. Express   11 ( 113101 )   1 - 5   2018.10

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

  • Preparation and characterization of the magnetic superconductor EuSr2RuCu2O8－δ (RuEu-1212) by partial melting Reviewed

    K. Yamaki N. Kitagawa S. Funahashi Y. Bamba A. Irie

    Physica C: Superconductivity and its Applications   550   95 - 98   2018.7

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier  

  • Critical Current of Intrinsic Josephson Junctions in Co/Au/BSCCO/Au/Co Hybrid Structure Reviewed

    K. Murata K. Yamaki A. Irie

    IEICE Transactions on Electronics   E101.C ( 5 )   391 - 395   2018.5

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    Language：English   Publishing type：Research paper (scientific journal)  

  • Growth and structural characterization of single crystals of the magnetic superconductor Ru1－xSr2－yGd1+yCu2+xO8－δ (RuGd-1212) obtained by the partial melting technique Reviewed

    K. Yamaki Y. Bamba T. Mochiku S. Funahashi A. Irie

    Physica C: Superconductivity and its Applications   548   40 - 43   2018.5

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier  

  • Preparation of fine single crystals of magnetic superconductor RuSr2GdCu2O8-δ by partial melting Reviewed

    K. Yamaki Y. Bamba A. Irie

    Japanese Journal of Applied Physics   57 ( 3 )   033101-1 - 5   2018.2

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    Language：English   Publishing type：Research paper (scientific journal)  

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Presentations

  • Synthesis of Ruthenocuprate RuEu-1212 under Several Oxygen Pressures

    Takumi Fujino, Kazuhiro Yamaki, Akinobu Irie

    The 72th JSAP Spring Meeting 2025  2025.3 

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    Event date： 2025.3

    Language：Japanese   Presentation type：Poster presentation  

  • 非対称並列ジョセフソン接合アレイの数値解析

    DALILATI AFIQAH BINTI CHE AZHAR、入江 晃亘、八巻 和宏

    令和６年度 電気学会栃木・群馬支所合同研究発表会  2025.3  電気学会栃木・群馬支所

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    Event date： 2025.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：宇都宮大学  

  • 銅酸化物高温超伝導体の単結晶成長

    八巻和宏

    超伝導材料・デバイス研究会 KISTS2024  2024.12  島影彰教授（茨城大学）

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    Event date： 2024.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：茨城大学水戸駅南サテライト ミーティングスペース   Country：Japan  

  • Growth of β-Ga2O3 Single Crystals Using the FZ Technique with TiO2 as Solvent

    Keito Iizuka, ○Kazuhiro Yamaki, Yoshinobu Suzuki, Keitaro Tezuka, Akinobu Irie

    The 85th JSAP Autumn Meeting 2024  2024.9 

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    Event date： 2024.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

  • Growth of Si-Doped β-Ga2O3 Single Crystals by the FZ Technique

    ○Yoshinobu Suzuki, Kazuhiro Yamaki, Akinobu Irie

    The 85th JSAP Autumn Meeting 2024  2024.9 

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    Event date： 2024.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

  • Optimization of Synthesis Conditions for GdSr2RuCu2O8-δ Single Crystals under Several Atmospheres

    Koichi Maruyama, Akinobu Irie, Kazuhiro Yamaki

    The 71th JSAP Spring Meeting 2024  2024.3 

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    Event date： 2024.3

    Language：Japanese   Presentation type：Poster presentation  

  • Two coupled dc-SQUIDs based on the intrinsic Josephson Junctions International conference

    A. Irie, R. Matsuzaki, K. Yamaki

    18th International Superconductive Electronics Conference (ISEC 2023)  2023.11 

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    Event date： 2023.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Nanjing, China   Country：China  

  • Preparation of RuO2 Single Crystals by Sublimation Process

    Kazuhiro Yamaki, Akinobu Irie

    The 84th JSAP Autumn Meeting 2023  2023.9 

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    Event date： 2023.9

    Language：Japanese   Presentation type：Poster presentation  

  • Josephson Current Modulation in Hybrid SFS Structures Based on Intrinsic Josephson Junctions Invited International conference

    A. Irie, R. Kimura, and K. Yamaki

    The 11th East Asia Symposium on Superconductor Electronics (EASSE 2023)  2023.3 

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    Event date： 2023.3

    Language：English   Presentation type：Oral presentation (invited, special)  

    Venue：Okayama  

  • Synthesis for GdSr2RuCu2O8-δ Single Crystals by Partial Melting under Several Atmospheres

    Koichi Maruyama, Akinobu Irie, Kazuhiro Yamaki

    The 70th JSAP Spring Meeting 2023  2023.3 

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    Event date： 2023.3

    Language：Japanese   Presentation type：Poster presentation  

  • 部分溶融とFZ法によるEuSr2Cu2NbO8-d単結晶の育成

    八巻和宏，谷勝也，入江晃亘

    2021年第82回応用物理学会秋季学術講演会  日本応用物理学会

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    Event date： 2021.9

    Language：Japanese   Presentation type：Poster presentation  

    Venue：オンライン開催  

  • Synthesis and characterization of RuEu-1212 and RuEu-1222 single crystals International conference

    K. Yamaki N. Kitagawa T. Mochiku Y. Matsushita S. Funahashi

    ASC 2020  2020.11 

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    Event date： 2020.10 - 2020.11

    Language：English   Presentation type：Poster presentation  

    Venue：Virtual conference  

  • 部分溶融法におけるルテニウム系銅酸化物RuEu-1222単結晶の合成温度と超伝導転移温度の関係

    五十嵐恭佑 北川尚樹 八巻和宏 入江晃亘

    2020年第81回応用物理学会秋季学術講演会  2020.9  日本応用物理学会

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    Event date： 2020.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：オンライン開催  

  • Synthesis and structural characterization of rutheno-cuprate single crystals Invited International conference

    八巻 和宏 船橋 周悟 番場 幸大 手塚慶太郎 北村通英

    Joint KU-VUW Workshop 2019 -Science, Engineering and Applications of Electric and Electronic Materials?  2019.11 

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    Event date： 2019.11

    Language：English   Presentation type：Oral presentation (invited, special)  

    Venue：Portage, NZ  

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Research Projects

  • ルテニウム系銅酸化物高温超伝導体単結晶を用いた固有接合特性の解明

    Grant number：25K07830  2025.4 - 2028.3

    Grants-in-Aid for Scientific Research (KAKENHI)  Grant-in-Aid for Scientific Research(C)

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    Authorship：Principal investigator  Grant type：Competitive

    Grant amount：\4680000 （ Direct Cost: \3600000 、 Indirect Cost：\1080000 ）

  • 部分溶融による精密合成が拓くルテニウム系銅酸化物磁性超伝導体単結晶の構造的理解

    Grant number：21K04860  2021.4 - 2024.3

    Grants-in-Aid for Scientific Research (KAKENHI)  Grant-in-Aid for Scientific Research(C)

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    Authorship：Principal investigator 

    Grant amount：\4160000 （ Direct Cost: \3200000 、 Indirect Cost：\960000 ）

  • 研究成果展開事業研究成果最適展開支援プログラム（A-STEP）トライアウトタイプ量子情報処理用ルテニウム系銅酸化物高温超伝導体単結晶

    2021

    Contract research expenses 

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    Authorship：Principal investigator 

    Grant amount：\2990000 （ Direct Cost: \2300000 、 Indirect Cost：\690000 ）

  • ルテニウム系銅酸化物磁性超伝導体単結晶を用いた超伝導と磁気秩序共存問題の解明

    Grant number：18K04921  2018.4 - 2021.3

    Grants-in-Aid for Scientific Research (KAKENHI)  Grant-in-Aid for Scientific Research(C)

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    Authorship：Principal investigator 

    Grant amount：\4290000 （ Direct Cost: \3300000 、 Indirect Cost：\990000 ）

  • 公益財団法人村田学術振興財団研究助成 超小型加圧炉を用いた部分溶融法によるルテニウム系銅酸化物高温超伝導体単結晶の転移温度の上昇と超伝導発現機構の解明

    2019 - 2020

    Research grant 

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    Authorship：Principal investigator 

    Grant amount：\2260000 （ Direct Cost: \2260000 ）

  • 第３５回（平成２９年度）公益財団法人カシオ科学振興財団研究助成金

    2017 - 2018

    Research grant 

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    Authorship：Principal investigator 

    Grant amount：\1000000 （ Direct Cost: \1000000 ）

  • 外部共振回路との結合による高温超伝導体発振素子の高出力化

    Grant number：26790029  2014.4 - 2017.3

    Grants-in-Aid for Scientific Research (KAKENHI)  Grant-in-Aid for Young Scientists(B)

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    Authorship：Principal investigator 

    Grant amount：\4030000 （ Direct Cost: \3100000 、 Indirect Cost：\930000 ）

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Other research activities

  • 応用物理学会全国大会座長

    2024.9

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    2024年 第85回 応用物理学会 秋季学術講演会における11.1基礎物性（超伝導）のセッションの座長

  • 応用物理学会全国大会座奨励賞審査委員

    2024.9

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    2024年 第85回 応用物理学会 秋季学術講演会における講演奨励賞の審査委員

  • 応用物理学会全国大会座奨励賞審査委員

    2024.3

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    2024年 第71回 応用物理学会 春季学術講演会における講演奨励賞の審査委員

  • 応用物理学会全国大会座長

    2023.9

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    2023年 第84回 応用物理学会 秋季学術講演会における11.1基礎物性（超伝導）のセッションの座長

  • 応用物理学会全国大会座奨励賞審査委員

    2023.9

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    2023年 第84回 応用物理学会 秋季学術講演会における講演奨励賞の審査委員

  • 応用物理学会全国大会座長

    2023.3

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    2023年第70回応用物理学会の11.1超伝導、基礎物性

  • 応用物理学会全国大会座奨励賞審査委員

    2023.3

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    2023年第70回応用物理学会の11.1超伝導、基礎物性

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Class

  • 電子材料工学特論  B100457

    2022  （ Graduate School ）

  • 電気磁気学演習Ⅰ  T740045

    2022  （ University ）

  • 情報電子ｵﾌﾟﾃｨｸｽ･電気系入門(後期)  T710051

    2022  （ University ）

  • 情報電子ｵﾌﾟﾃｨｸｽ･電気系入門(前期)  T710047

    2022  （ University ）

  • 電子ﾃﾞﾊﾞｲｽ  T740067

    2022  （ University ）

  • 電気磁気学演習Ⅰ  T740045

    2021  （ University ）

  • 情報電子ｵﾌﾟﾃｨｸｽ･電気系入門(後期)  T710051

    2021  （ University ）

  • 情報電子ｵﾌﾟﾃｨｸｽ･電気系入門(前期)  T710047

    2021  （ University ）

  • 情報電子オプティクス実験A  T740033

    2021  （ University ）

  • 情報電子オプティクス実験A  T740034

    2021  （ University ）

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