SEKIYA Takao

Affiliation

Faculty of Engineering, Division of Intelligent Systems Engineering

Job Title

Professor

Date of Birth

1963

Research Fields, Keywords

optical physics, high pressure, materials science

Mail Address

E-mail address



写真a

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Education 【 display / non-display 】

  • 　
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    1987

    Yokohama National University   Master Course   Completed

  • 　
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    1985

    Yokohama National University   Department of Applied Chemistry   Graduated

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Degree 【 display / non-display 】

  • Doctor of Engineering - Tokyo Institute of Technology

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Campus Career 【 display / non-display 】

  • 2011.1
    　
    　

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Professor  

  • 2007.4
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    2010.12

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Associate Professor  

  • 2001.10
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    2007.3

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Associate Professor  

  • 2001.4
    -
    2001.9

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Research Assistant  

  • 1996.4
    -
    2001.3

    Duty   Yokohama National UniversitySchool of Engineering   Research Assistant  

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Academic Society Affiliations 【 display / non-display 】

  • 1998.9
    　
    　
     

    The Japan Society of High Pressure Science and Technology

  • 1997.1
    　
    　
     

    The Physical Society of Japan

  • 1994.2
    　
    　
     

    The Japan Society of Applied Physics

  • 1985.5
    　
    　
     

    The Ceramic Society of Japan

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Research Areas 【 display / non-display 】

  • Nanotechnology/Materials / Inorganic materials and properties

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electron device and electronic equipment

  • Natural Science / Semiconductors, optical properties of condensed matter and atomic physics

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Research Career 【 display / non-display 】

  • Study on electrical and Optical properties of transition metal Oxides

    Grant-in-Aid for Scientific Research  

    Project Year：

  • 光誘起磁化の研究

    The Other Research Programs  

    Project Year：

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    磁性イオンを基底状態と磁気量子数が異なる状態へ光で励起することで、マクロな磁気モーメントを発生させることが出来る。反強磁性から弱強磁性への転移を生じるRCrO3（R:希土類金属)を採り上げ、光による磁化の制御を目指している。

  • Phase transition and properties under high pressure.

    The Other Research Programs  

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  • 会合体の電子物性

    The Other Research Programs  

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  • Structure and properties of amorphous oxides.

    The Other Research Programs  

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Thesis for a degree 【 display / non-display 】

  • Structural Study of Tellurite Glasses by Raman Spectroscopy

    T.Sekiya

    1 - 206   1993.7

    Doctoral Thesis   Single Work  

  • MO2-PO5/2系（M=Si,Ge,Ti）ガラスの構造

    関谷　隆夫

    1987.3

    Master Thesis   Single Work  

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    横浜国立大学大学院工学研究科
    標題の2成分系ガラスを調製し，相対強度を補正したラマンスペクトルを測定した。ピーク分離を施し，P=O結合伸縮振動強度の組成依存性から，GeO2系では加えたPO5/2成分に比例して，6配位Ge4+が生成し，SiO2系ではPO5/2を多く含むと，4,6配位Si4+が共存することを確認した。TiO2系では6配位のTi4+がクラスターを形成していることを，見出した。また，ガラス転移点，熱膨張係数に見られる極端な変化が，これら高配位した成分に起因することを指摘した。

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Papers 【 display / non-display 】

  • Photogenerated electron- and hole-trap distributions in Al-doped anatase TiO<sub>2</sub> crystals measured by cryogenic EPR imaging

    Kitao, Y; Matsuoka, H; Murano, A; Sekiya, T; Akimoto, I

    PHYSICA SCRIPTA   99 ( 2 )   2024.2  [Reviewed]

    DOI Web of Science

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

  • One-step formation of ZrN on surface of carbon fine particles for membrane electrode assembly

    Y. Aihara, T. Iida, K. Kodama, K. Iwabuchi, H. Iwata, T. Sekiya

    Proceedings of International Symposium on Dry Process (DPS2023)   2023.11

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    Language：English   Publishing type：Research paper (international conference proceedings)   Single Work  

  • XPS measurement of zirconium oxynitride thin films deposited by reactive magnetron sputtering

    T. Ishino, T. Sekiya

    Proceedings of International Symposium on Dry Process (DPS2023)   2023.11

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    Language：English   Publishing type：Research paper (international conference proceedings)   Single Work  

  • Change in electronic state of nitrogen in oxidized titanium nitride

    Ayane Murano and Haruka Funabiki and Takao Sekiya

    Journal of Physics and Chemistry of Solids   168   110817   2022.9  [Reviewed]

    DOI Web of Science

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

  • Development of vibrational equipment for direct deposition on surface of carbon powder

    T. Iida, K. Kodama, H. Iwata, M. Tanaka, T. Sekiya

    The 41th International Symposium on Dry Process (DPS2019)   2019.11

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    Language：English   Publishing type：Research paper (international conference proceedings)   Single Work  

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Review Papers 【 display / non-display 】

  • Defects in Anatase Titanium, Dioxide , in "Nano- and Micromaterials", Advances in Materials Research 9

    Springer-Verlag   121 - 141   2008

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    Language：English   Publishing type：Article, review, commentary, editorial, etc. (other)   Joint Work  

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Grant-in-Aid for Scientific Research 【 display / non-display 】

  • Pt代替のための遷移金属酸窒化物を担持した微粒子電極触媒材料の開発

    2018.4 - 2021.3

    科学研究費補助金  Grant-in-Aid for Scientific Research(C)

    Investigator(s)：関谷隆夫

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    Grant type：Competitive

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Presentations 【 display / non-display 】

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Charge of on-campus class subject 【 display / non-display 】

  • 2024   Advanced Semiconductor Physics

    Graduate school of Engineering Science

  • 2024   Practice for Physical Education

    Graduate school of Engineering Science

  • 2024   Seminar for Physical Education

    Graduate school of Engineering Science

  • 2024   Career-Design in Physics

    Graduate school of Engineering Science

  • 2024   Experimental Practice in Physics

    College of Urban Sciences

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Committee Memberships 【 display / non-display 】

  • 横浜ナノリサーチクラブ

    2017.4  世話人代表

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    Committee type：Other 

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Social Contribution(Extension lecture) 【 display / non-display 】

  • YNUテクノワールド2011

    機器分析評価センター  横浜国立大学  2011.7

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    Type：Extension Lecture

    高校生を対象とした先端機器実習 「光を体験しよう－レーザの原理と組立」のテーマを担当

  • YNUテクノワールド2010

    機器分析評価センター  横浜国立大学  2010.7

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    Type：Extension Lecture

    高校生を対象とした先端機器実習 「光を体験しよう－レーザの原理と組立」のテーマを担当

  • YNUテクノワールド2009

    機器分析評価センター  横浜国立大学  2009.7

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    Type：Extension Lecture

    高校生を対象とした先端機器実習 「光を体験しよう－レーザの原理と組立」のテーマを担当

  • YNUテクノワールド2008

    機器分析評価センター  横浜国立大学  2008.4

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    Type：Extension Lecture

    高校生を対象とした先端機器実習 「光を体験しよう－レーザの原理と組立」のテーマを担当

  • YNUテクノワールド2007

    機器分析評価センター  横浜国立大学  2007.4

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    Type：Extension Lecture

    高校生を対象とした先端機器実習 「光を体験しよう－レーザの原理と組立」のテーマを担当

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