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Affiliation |
Graduate School of Engineering Science Department of Materials Science Materials Science and Engineering Course |
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Date of Birth |
1973 |
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Laboratory Address |
1-1 Tegata gakuen-machi, Akita |
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Homepage URL |
YOSHIMURA Satoru
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Graduating School 【 display / non-display 】
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1994.04-1998.03
Tohoku University Graduated
Graduate School 【 display / non-display 】
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1999.10-2002.03
Tohoku University Graduate School,Division of Engineering Doctor's Degree Program Completed
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1998.04-1999.09
Tohoku University Graduate School,Division of Engineering Master's Degree Program Completed
Campus Career 【 display / non-display 】
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2025.04-Now
Akita University Future Cooperative Research Organization Innovation Office Director
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2022.04-Now
Akita University Graduate School of Engineering Science Department of Materials Science Materials Science and Engineering Course Professor
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2020.04-2025.03
Akita University Graduate School of Engineering Science Research Center of Advanced Materials for Breakthrough Technology Director
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2019.04-2022.03
Akita University Graduate School of Engineering Science Research Center of Advanced Materials for Breakthrough Technology Professor
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2018.04-2019.03
Akita University Graduate School of Engineering Science Research Center of Advanced Materials for Breakthrough Technology Associate Professor
Research Areas 【 display / non-display 】
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electric and electronic materials
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electron device and electronic equipment
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Nanotechnology/Materials / Thin film/surface and interfacial physical properties
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Nanotechnology/Materials / Structural materials and functional materials
Research Achievements 【 display / non-display 】
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Optimizing the Magnetic Properties of Metallic Magnetic Tip for Observation of Clear Magnetic and Dielectric Domains in Various BiFeO₃-Based Multiferroic Thin Films Induced by a Local Electric Field
Swati Sucharita DAS, Karin HATEKAYAMA, Genta EGAWA, Satoru YOSHIMURA
International Journal of the Society of Materials Engineering for Resources ( 日本素材物性学会 ) advpub ( 0 ) 2026.05 [Refereed]
Research paper (journal) Domestic Co-author
<p><font face="roman">To optimize the magnetic properties of metallic magnetic tips for observing distinct magnetic and electric domains using magnetic force microscopy (MFM) and electric force microscopy (EFM) in various Bismuth ferrite (BiFeO</font>₀<font face="roman">; BFO) based multiferroic thin films, various metallic magnetic tips with different magnetic properties were used. In particular, the MFM and EFM images of various BFO based multiferroic thin films, (Bi.</font><sub><font face="roman">5</font></sub><font face="roman">La.</font><sub><font face="roman">5</font></sub><font face="roman">)(Fe.Co</font>₀.₀<font face="roman">)O and (Bi.</font><sub><font face="roman">5</font></sub><font face="roman">Nd.</font><sub><font face="roman">5</font></sub><font face="roman">)(Fe.Co</font>₀.₀<font face="roman">)O with different saturation magnetization (M), were observed. The thickness of these films is 200 nm and 260 nm. These thin films were observed by metallic and magnetic Co-Cr-Pt coated MFM tips (30 nm thick) with varying M values. As the M of the Co-Cr-Pt coating tip increased, the MFM phase signal increased, while the EFM phase signal declined and even changed polarity. The reduction or change in the EFM signal observed by the metallic and magnetic Co-Cr-Pt-coated MFM tip with the higher M values was attributed to the very strong magnetic force, which dominates the electric force. By evaluating MFM and EFM images of BFO based thin films with various total magnetic moments (M</font><sub><font face="roman">s</font></sub><font face="roman">× film thickness) using tips with various M</font><sub><font face="roman">s</font></sub><font face="roman">, we found that there is an ideal combination of tip and BFO based thin film that provides phase signals of sufficient strength with the correct polarity in all images. These findings highlight the importance of selecting an MFM tip with appropriate magnetization to achieve accurate domain imaging in BFO based multiferroic thin films, which is crucial for advancing highresolution characterization of magnetoelectric interactions.</font></p>
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Swati Sucharita Das, Genta Egawa, Satoru Yoshimura
Chemical Physics Impact ( Elsevier Chemical Physics Impact ) 12 101004 2026.01 [Refereed]
Research paper (journal) Domestic Co-author
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Mechanistic Origin of a Stable Magnetic Vortex in Three-Dimensional Pyramid Fe Thin Films
Juharni, L. N. Pamasi, Ni’matil Mabarroh, A. N. Hattori, H. Tanaka, N. Hosoito, S. Yoshimura, K. Hattori
Magnetism ( MDPI Magnetism ) 6 ( 1 ) 6 2026.01 [Refereed]
Research paper (journal) Domestic Co-author
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Swati Sucharita Das, Daichi Kanari, Yuta Suzuki, Genta Egawa, Satoru Yoshimura
Journal of Alloys and Compounds ( Journal of Alloys and Compounds ) 1042 184142 2025.10 [Refereed]
Research paper (journal) Domestic Co-author
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Fabrication of HCP-Co based thin films with perpendicular magnetization, low saturation magnetic field, and high saturation magnetization
Soichi TANAKA, Genta EGAWA, Satoru YOSHIMURA
Journal of the Society of Materials Engineering for Resources of Japan ( The Society of Materials Engineering for Resources of JAPAN ) 35 ( 0 ) 6 - 14 2025.09 [Refereed]
Research paper (journal) Domestic Co-author
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Fabrication of high-quality BiFeO3-based ferromagnetic and ferroelectric thin films by pulsed DC reactive sputtering method
20 ( 1 ) 25 - 30 2025.01 [Refereed]
Introduction and explanation (others) Single author
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Trend of Data Storage Device and Technology
Machida Kenji, Kato Daisuke, Yoshimura Satoru, Musha Atsushi, Bunsen Masatoshi
The Journal of Image Information and Television Engineers ( The Institute of Image Information and Television Engineers ) 77 ( 3 ) 337 - 34 2023.05
Introduction and explanation (scientific journal) Domestic Co-author
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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
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S. Ratha, R. Suzuki, D. Yamamoto, K. Takeda, M. Kuppan, G. Egawa, S. Yoshimura
2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings ( 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings ) 2023.05
Research paper (international conference proceedings) Domestic Co-author
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Y. Suzuki, T. Ozeki, G. Egawa, and S. Yoshimura
2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings ( 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings ) 2023.05
Research paper (international conference proceedings) Domestic Co-author
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Satoru Yoshimura, Genta Egawa
Proceedings - 2022 IET International Conference on Engineering Technologies and Applications, IET-ICETA 2022 ( IEEE ) 2022.12 [Refereed]
Research paper (international conference proceedings) Domestic Co-author
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Satoru Yoshimura
AIP Conference Proceedings ( AIP Conference Proceedings ) 2391 090001-1 - 090001-6 2022.03 [Refereed] [Invited]
Research paper (international conference proceedings) Single author
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High Functional Multiferroic Thin Films for Novel Magnetic Devices with System of Magnetization Reversal by Electric Field (Invited)
S. Yoshimura and M. Kuppan
Proceedings of International Workshop on Materials Technology and Applications 2018 IT2-9 - IT2-13 2018.10 [Invited]
Research paper (international conference proceedings) Domestic Co-author
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Fabrication of high-quality BiFeO3-based ferromagnetic and ferroelectric thin films by pulsed DC reactive sputtering method
Satoru YOSHIMURA, Swati S. DAS, Genta EGAWA
49 ( 35 ) 9 - 14 2025.10
Research paper (research society, symposium materials, etc.) Domestic Co-author
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Fabrication of thin magnetic metal films with perpendicular magnetization, low saturation magnetic field, and high saturation magnetization for realization of novel magnetic field sensors with high sensitivity, high signal output, and low power consumption
Soichi TANAKA, Ryuji TAKIURA, Genta EGAWA, Satoru YOSHIMURA
49 ( 15 ) 1 - 8 2025.06
Research paper (research society, symposium materials, etc.) Domestic Co-author
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Fabrication of metallic ferromagnetic / oxide multiferroic - multilayer structure for electric field control of giant magneto-optical Kerr effect
Satoru Yoshimura
48 ( 37 ) 40-1 - 40-5 2024.12
Research paper (research society, symposium materials, etc.) Single author
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Fabrication of high-quality α"-Fe16N2 thin film with high saturation magnetization using pulsed DC reactive sputtering method
Ikuko Katsuyama, Genta Egawa, and Satoru Yoshimura
48 ( 18 ) 31-1 - 31-8 2024.06
Research paper (research society, symposium materials, etc.) Domestic Co-author
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Fabrication of oxide/nitride matrix thin films by pulsed DC reactive sputtering method for realization of Co-based superparamagnetic granular thin films with high magnetization
Takumi Kobayashi, Ryutaro Ono, Genta Egawa, and Satoru Yoshimura
47 2023.06
Research paper (research society, symposium materials, etc.) Domestic Co-author
◆Original paper【 display / non-display 】
◆Introduction and explanation【 display / non-display 】
◆International conference proceedings【 display / non-display 】
◆Research society, Symposium materials, etc.【 display / non-display 】
Presentations 【 display / non-display 】
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Fabrication of perpendicular magnetic thin films with low saturation magnetic field and high saturation magnetization for realizing a new magnetic field sensor with high sensitivity and high signal output Ⅱ
2025.12 - 2025.12
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Development spatial light modurlator for realization of 3D display with low power consumption and high brightness with using multiferroic thin films and their laminated films (Invited)
Satoru Yoshimura [Invited]
16th Indian Scientists Association in Japan (ISAJ) Annual Symposium 2025 (静岡) 2025.11 - 2025.11 Shizuoka Institute of Science & Technology
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Development of Ferromagnetic and Ferroelectric Thin Films with Excellent Magnetic Properties and Their Application to Newly Proposed High-Performance Magnetic Devices (Plenary)
Satoru Yoshimura [Invited]
The 2nd International Conference on Functional Materials for Future Technology (IC-FMFT 2025) (Vellore Institute of Technology, Vellore, Tamil Nadu, India) 2025.11 - 2025.11 Vellore Institute of Technology
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Optimizing the Magnetic Properties of Metallic Magnetic Tip for Observation of Clear Magnetic and Dielectric Domains in Various BiFeO₃-Based Multiferroic Thin Films Induced by a Local Electric Field
Swati Sucharita DAS, Karin HATEKAYAMA, Genta EGAWA, Satoru YOSHIMURA
The 10th International Conference on Materials Engineering for Resources (ICMR2025 AKITA) (秋田) 2025.10 - 2025.10 日本素材物性学会
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Fabrication of high-quality BiFeO3-based ferromagnetic and ferroelectric thin films by pulsed DC reactive sputtering method
2025.10 - 2025.10
Academic Activity 【 display / non-display 】
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2024.01-2024.12
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2021.04-Now
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2020.04-Now
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2015.04-Now
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2015.04-Now