YOSHIMURA Satoru

写真a

Affiliation

Graduate School of Engineering Science  Research Center of Advanced Materials for Breakthrough Technology 

Date of Birth

1973

Laboratory Address

1-1 Tegata gakuen-machi, Akita

Graduating School 【 display / non-display

  • 1994.04
    -
    1998.03

    Tohoku University     Graduated

Graduate School 【 display / non-display

  • 1999.10
    -
    2002.03

    Tohoku University  Graduate School,Division of Engineering  Doctor's Degree Program  Completed

  • 1998.04
    -
    1999.09

    Tohoku University  Graduate School,Division of Engineering  Master's Degree Program  Completed

Campus Career 【 display / non-display

  • 2020.04
    -
    Now

    Akita University   Graduate School of Engineering Science   Research Center of Advanced Materials for Breakthrough Technology   Director  

  • 2019.04
    -
    Now

    Akita University   Graduate School of Engineering Science   Research Center of Advanced Materials for Breakthrough Technology   Professor  

  • 2018.04
    -
    2019.03

    Akita University   Graduate School of Engineering Science   Research Center of Advanced Materials for Breakthrough Technology   Associate Professor  

  • 2016.04
    -
    2018.03

    Akita University   Graduate School of Engineering Science   Research Center for Engineering Science   Associate Professor  

  • 2014.04
    -
    2016.03

    Akita University   Graduate School of Engineering and Resource Science   Research Center for Engineering Science   Associate Professor  

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Research Field (grants-in-aid-for-scientific-research classification) 【 display / non-display

  • Electronic materials/Electric materials

  • Electron device/Electronic equipment

  • Thin film/Surface and interfacial physical properties

  • Structural/Functional materials

 

Thesis for a degree 【 display / non-display

  • 極薄高融点金属シード層によるCoCr基薄膜磁気記録媒体の結晶粒制御と低ノイズ化に関する研究

    吉村 哲 

      2002.03

    Single author

Published Papers 【 display / non-display

  • Development of BiFeO3 based ferromagnetic/ferroelectric thin film materials with large magnetic Kerr effect for application to electric field driven magneto-optical light modulator

    Satoru Yoshimura, Daichi Yamamoto, Kotaro Takeda, Takumi Ozeki, and Genta Egawa

      44 ( 22 ) 33 - 38   2020.10

    Domestic Co-author

  • Guidelines for fabrication of high quality BiFeO<sub>3</sub> based multiferroic thin films in pulsed DC reactive sputtering method

    Takeda K., Yamamoto D., Yoshimura S.

    Transaction of the Magnetics Society of Japan Special Issues ( The Magnetics Society of Japan )  4 ( 2 ) 116 - 120   2020.09  [Refereed]

    Domestic Co-author

    <p>  BiFeO<sub>3</sub> based thin films with ferromagnetism were fabricated by using a pulsed DC reactive sputtering method. Guidelines on sputtering targets for fabricating the films are discussed in regard to obtaining high-quality BiFeO<sub>3</sub> based thin films. By using a target with a low oxide content (low molar ratio of oxide) and thus good conductivity, it is possible to suppress the charging and arc discharge on the surface of the target and enable high-energy sputtering. As a result, high-quality BiFeO<sub>3</sub> based thin films with a high saturation magnetization were formed. By using a target with a high oxygen content (including oxides with a high oxidation valence), the generation of oxygen vacancies that degrade the ferroelectric properties is suppressed, and pinning sites that suppress domain wall movement are then also suppressed. As a result, high-quality BiFeO<sub>3</sub> based thin films with good ferromagnetic properties could be formed.</p>

    DOI CiNii

  • Development of novel magnetic recording device driven by electric field using BiFeO3-based ferromagnetic and ferroelectric thin films (invited)

    Satoru Yoshimura

    Conference Proceedings of 2019 Global Research Efforts on Energy and Nanomaterials (GREEN 2019)     ID-02   2019.12  [Invited]

    Single author

  • Attempt of application to memory or display devices in BiFeO3-based multiferroic films -Fabrication of high-qualified films, material research, and functional verification-

      43 ( 15 ) 37 - 43   2019.06  [Invited]

    Domestic Co-author

  • Alternating Magnetic Force Microscopy: Effect of Si doping on the temporal performance degradation of amorphous FeCoB magnetic tips

    Makarova, Y. Akaishi, T. Ikarashi, K. S. Rao, S. Yoshimura, and H. Saito

    Journal of Magnetism and Magnetic Materials ( Journal of Magnetism and Magnetic Materials )  471   209 - 214   2019.02  [Refereed]

    Domestic Co-author

    DOI

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Review Papers 【 display / non-display

  • Voltage Control of Magnetization Direction of Multiferroic Thin Films and its Application to Novel Magnetic Recording Devices with Electric-Field Writing Method

    Satoru Yoshimura

      67 ( 11 ) 68 - 73   2016.11

    Introduction and explanation (scientific journal)   Single author

Presentations 【 display / non-display

  • Magneto-optical Kerr effect of (Bi0.5A0.5)(Fe1-XCoX)O3 (A : Lanthanoid, X : 0 - 0.3) films

    S. Yoshimura, D. Yamamoto, K. Takeda, T Ozeki, G. Egawa

    2021.01  -  2021.01 

  • Fabrication of Co-Al2O3 superparamagnetic granular films with high magnetization

    Takumi Kobayashi, Akito Nakada, and Satoru Yoshimura

    2020.11  -  2020.11 

  • Development of BiFeO3 based ferromagnetic/ferroelectric thin film materials with large magnetic Kerr effect for application to electric field driven magneto-optical light modulator

    Satoru Yoshimura, Daich Yamamoto, Kotaro Takeda, Takumi Ozeki, and Genta Egawa

    2020.10  -  2020.10 

  • Development of high-functional and high-quality multiferroic thin films for application of high performance magnetic devices driven by electric field (Keynote)

    Satoru Yoshimura  [Invited]

    Virtual International Conference on Photovoltaic and Material Science  (オンライン開催)  2020.06  -  2020.06  CGC, VIT

  • Development of novel magnetic recording device driven by electric field using BiFeO3-based ferromagnetic and ferroelectric thin films (Keynote)

    Satoru Yoshimura  [Invited]

    2019 Global Research Efforts on Energy and Nanomaterials  (Taipei, Taiwan)  2019.12  -  2019.12  GREEN 2019

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