Okamoto Kazuki 岡本一輝

Researcher Number	60965937
Other IDs	https://orcid.org/0000-0001-7952-8729
Affiliation (Current)	2025: 東京科学大学, 物質理工学院, 助教
Affiliation (based on the past Project Information) *help	2025: 東京科学大学, 物質理工学院, 助教 2022 – 2024: 東京工業大学, 物質理工学院, 助教
Review Section/Research Field	Principal Investigator Basic Section 21050:Electric and electronic materials-related / 0302:Electrical and electronic engineering and related fields Except Principal Investigator Medium-sized Section 26:Materials engineering and related fields
Keywords	Principal Investigator 強誘電体 / 圧電体 / ナノ構造 / 積層構造 / 薄膜 / 積層膜 / 分極反転 / 窒化物 Except Principal Investigator 圧電センサ / 機械的特性 … More / 圧電体圧膜 / 蛍石構造酸化物 / 反応層フリー特性 / 単純構造強誘電体 / 室温合成 Less

酸化ハフニウム基材料における電界誘起相転移に関する研究Principal Investigator
- Principal Investigator
  
  岡本一輝
- Project Period (FY)
  2025 – 2026
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 21050:Electric and electronic materials-related
- Research Institution
  Institute of Science Tokyo
新規蛍石構造圧電体膜の機構解明と材料群開拓
- Principal Investigator
  
  舟窪浩
- Project Period (FY)
  2024 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 26:Materials engineering and related fields
- Research Institution
  Institute of Science Tokyo
酸化ハフニウム基強誘電体のナノロッド化による分極方位制御と圧電特性向上Principal Investigator
- Principal Investigator
  
  岡本一輝
- Project Period (FY)
  2023 – 2024
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 21050:Electric and electronic materials-related
- Research Institution
  Tokyo Institute of Technology
室温合成可能な新規単純化合物強誘電体群の開拓
- Principal Investigator
  
  舟窪浩
- Project Period (FY)
  2022 – 2024
- Research Category
  
  Grant-in-Aid for Challenging Research (Pioneering)
- Review Section
  
  Medium-sized Section 26:Materials engineering and related fields
- Research Institution
  Tokyo Institute of Technology
Lowering strong coercive electric field of ferroelectric nitrides through utilization of the charged interfacesPrincipal Investigator
- Principal Investigator
  
  Okamoto Kazuki
- Project Period (FY)
  2022 – 2023
- Research Category
  
  Grant-in-Aid for Research Activity Start-up
- Review Section
  
  0302:Electrical and electronic engineering and related fields
- Research Institution
  Tokyo Institute of Technology

All 2024 2023 2022

All Journal Article Presentation

[Journal Article] Phase Identification of 850 nm Thick 7%YO1.5?93%HfO2 Films by Surface and Cross-Sectional Raman Spectroscopies2024
- Author(s)
 Mimura Takanori、Takahashi Yuma、Shiraishi Takahisa、Kodera Masanori、Shimura Reijiro、Ishihama Keisuke、Okamoto Kazuki、Moriwake Hiroki、Taguchi Ayako、Shimizu Takao、Fujii Yasuhiro、Koreeda Akitoshi、Funakubo Hiroshi
- Journal Title
 
 ACS Applied Electronic Materials
 
 Volume: 6 Issue: 4 Pages: 2500-2506
- DOI
 10.1021/acsaelm.4c00134
- Peer Reviewed
- Data Source
 KAKENHI-PROJECT-23K13364
[Journal Article] The ferroelectric and piezoelectric properties of (Hf1?x Ce x )O2 films on indium tin oxide/Pt/TiO x /SiO2/(100)Si substrates obtained using a no-heating radio-frequency magnetron sputtering deposition method2024
- Author(s)
 Chaya Nachi、Okamoto Kazuki、Hirai Koji、Yasuoka Shinnosuke、Inoue Yukari、Yamaoka Wakiko、Funakubo Hiroshi
- Journal Title
 
 Japanese Journal of Applied Physics
 
 Volume: 63 Issue: 4 Pages: 04SP83-04SP83
- DOI
 10.35848/1347-4065/ad3a71
- Peer Reviewed
- Data Source
 KAKENHI-PROJECT-23K13364
[Journal Article] Scalable ferroelectricity of 20?nm-thick (Al0.8Sc0.2)N thin films sandwiched between TiN electrodes2023
- Author(s)
  Ota Reika、Yasuoka Shinnosuke、Mizutani Ryoichi、Shiraishi Takahisa、Okamoto Kazuki、Kakushima Kuniyuki、Koganezawa Tomoyuki、Sakata Osami、Funakubo Hiroshi
- Journal Title
  
  Journal of Applied Physics
  
  Volume: 134 Issue: 21 Pages: 214103-214103
- DOI
  10.1063/5.0166288
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22K20427, KAKENHI-PROJECT-21H01617
[Journal Article] Invariant polarization switching kinetics in an (Al0.8Sc0.2)N film with frequency and temperature2023
- Author(s)
  Yasuoka Shinnosuke、Mizutani Ryoichi、Ota Reika、Shiraishi Takahisa、Shimizu Takao、Okamoto Kazuki、Uehara Masato、Yamada Hiroshi、Akiyama Morito、Funakubo Hiroshi
- Journal Title
  
  Applied Physics Letters
  
  Volume: 123 Issue: 20 Pages: 202902-202902
- DOI
  10.1063/5.0171108
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22K20427, KAKENHI-PROJECT-21H01617
[Presentation] Progress of Research on None-Perovskite Dielectric Materials2024
- Author(s)
  Hiroshi Funakubo, Kazuki Okamoto, Takao Shimizu, and Tomoaki Yamada
- Organizer
  STAC-D2MatE 2024 (The International Conference on the Science and Technology for Advanced Ceramics - Data Driven Materials Research for Electronics 2024)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K18307
[Presentation] Effect of gas annealing on the ferroelectric property of (Al0.8Sc0.2)N thin film2024
- Author(s)
  Nana Sun，Kazuki Okamoto，Shinnosuke Yasuoka，Naoko Matsui，Toshikazu Irisawa，Koji Tsunekawa，Hiroshi Funakubo
- Organizer
  第62回セラミックス基礎科学討論会
- Data Source
  KAKENHI-PROJECT-22K20427
[Presentation] Orientation control in Y:HfO2 ferroelectric thin films2024
- Author(s)
  Kazuki Okamoto, Yoshiki Maekawa, Takao Shimizu, Hiroshi Funakubo
- Organizer
  High K Workshop 2024
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K13364
[Presentation] PLD法によるCeO2-HfO2-ZrO2薄膜の作製と評価2024
- Author(s)
  下野園航平、前川芳輝、茶谷那知、岡本一輝、井上ゆか梨、舟窪浩
- Organizer
  第62回セラミックス基礎科学討論会
- Data Source
  KAKENHI-PROJECT-23K13364
[Presentation] High stability of ferroelectricity against hydrogen gas in (Al,Sc)N thin films2024
- Author(s)
  Nana Sun, Kazuki Okamoto, Shinnosuke Yasuoka, Naoko Matsui, Toshikazu Irisawa, Koji Tsunekawa, Soshun Doko and Hiroshi Funakubo
- Organizer
  第71回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-22K20427
[Presentation] スパッタリング法によるHfO2-CeO2強誘電体薄膜のYSZ基板上への非加熱合成2024
- Author(s)
  茶谷那知、平井浩司、安岡慎之介、岡本一輝、山岡和希子、井上ゆか梨
- Organizer
  第62回セラミックス基礎科学討論会
- Data Source
  KAKENHI-PROJECT-23K13364
[Presentation] Ga添加によるAlNへのSc固溶量の増加とその強誘電性および圧電性への影響2024
- Author(s)
  大田怜佳、安岡慎之介、中村美子、岡本一輝、原浩之、正能大起、上岡義弘、召田雅実、舟窪浩
- Organizer
  第71回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-22K20427
[Presentation] スパッタリング法によるHfO2-CeO2強誘電体薄膜のYSZ基板上への非加熱合成2024
- Author(s)
  茶谷那知、平井浩司、安岡慎之介、岡本一輝、山岡和希子、井上ゆか梨
- Organizer
  第62回セラミックス基礎科学討論会
- Data Source
  KAKENHI-PROJECT-22K18307
[Presentation] No heating deposition of CeO2-HfO2 ferroelectric thick films by sputtering method2023
- Author(s)
  Nachi Chaya, Koji Hirai, Shinnosuke Yasuoka, Kazuki Okamoto, Wakiko Yamaoka, Yukari Inoue, and Hiroshi Funakubo
- Organizer
  MNC 2023 (36th International Microprocesses and Nanotechnology Conference)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K18307
[Presentation] スパッタリング法によるHfO2-CeO2強誘電体厚膜の非加熱合成2023
- Author(s)
  茶谷那知、平井浩司、安岡慎之介、岡本一輝、山岡和希子、井上ゆか梨、舟窪浩
- Organizer
  第70回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-22K18307
[Presentation] 格子整合によるY 添加HfO2強誘電体薄膜の配向制御2023
- Author(s)
  前川芳輝、平井浩司、岡本一輝、清水荘雄、舟窪浩
- Organizer
  第84回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-23K13364
[Presentation] HfO2-CeO2膜における電気特性の膜厚及び組成依存性2023
- Author(s)
  平井浩司、岡本一輝、白石貴久、山岡和希子、鶴丸理沙子、井上ゆか梨、舟窪浩
- Organizer
  第84回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-23K13364
[Presentation] Ferroelectric and Piezoelectric Properties of Non-perovskite Simple Oxide2023
- Author(s)
  Hiroshi Funakubo, Takao Shimizu, Takanori Mimura, and Kazuki Okamoto
- Organizer
  MRM2023/IUMRS-ICA2023
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K18307
[Presentation] NbN電極上に作製したエピタキシャル(Al,Sc)N膜の電気特性評価2023
- Author(s)
  安岡慎之介, 大田怜佳, 岡本一輝, 石濱圭佑, 清水荘雄, 舟窪浩
- Organizer
  第70回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-22K20427
[Presentation] No heating deposition of CeO2-HfO2 ferroelectric thick films by sputtering method2023
- Author(s)
  Nachi Chaya, Koji Hirai, Shinnosuke Yasuoka, Kazuki Okamoto, Wakiko Yamaoka, Yukari Inoue, and Hiroshi Funakubo
- Organizer
  36th International Microprocesses and Nanotechnology Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K13364
[Presentation] Ferroelectric Property Improvement of (Al1-x-yGaxScy)N Ternary Thin Films2023
- Author(s)
  Reika Ota, Shinnosuke Yasuoka, Kazuki Okamoto, Yoshihiro Ueoka, Yoshiro Kususe, Masami Mesuda, Hiroshi Funakubo
- Organizer
  2023 MRS Fall Meeting & Exhibit
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K20427
[Presentation] 種々の組成の(Al, Sc)N多層膜のスイッチング特性評価2023
- Author(s)
  安岡慎之介、岡本一輝、清水荘雄、松井尚子、入澤寿和、恒川孝二、舟窪浩
- Organizer
  第84回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-22K20427
[Presentation] Stabilization and Identification of Ferroelectric HfO2 Thin Films2023
- Author(s)
  Hiroshi Funakubo, Yuma Takahashi, Takahisa Shiraishi, Kodera Masanori, Reijiro Shimura, Takanori Mimura, Keisuke Ishihama, Kazuki Okamoto, Hiroki Moriwake, Ayako Taguchi, Takao Shimizu, Yasuhiro Fujii, Akitoshi Koreeda
- Organizer
  IWDTF2023 (2023 International Workshop on Dielectric Thin Films for Future Electron Devices - Science and Technology)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K18307
[Presentation] RFマグネトロンスパッタリング法によるSi基板上への強誘電体HfO2基薄膜の作製2023
- Author(s)
  小野友慈、近藤真矢、寺西貴志、岡本一輝、舟窪浩、山田智明、岸本昭
- Organizer
  第29回ヤングセラミスト・ミーティング
- Data Source
  KAKENHI-PROJECT-23K13364
[Presentation] Characterization of Ferroelectric Switching Properties for (Al,Sc)N Films with Various Composition2023
- Author(s)
  Shinnosuke Yasuoka, Kazuki Okamoto, Takao Shimizu, Hiroshi Funakubo
- Organizer
  2023 MRS Fall Meeting & Exhibit
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K20427
[Presentation] NbN電極上に作製したエピタキシャル(Al, Sc)N膜の電気特性評価2023
- Author(s)
  安岡慎之介、大田怜佳、岡本一輝、清水荘雄、舟窪浩
- Organizer
  第70回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-22K18307
[Presentation] 正方晶Pb(Zr,Ti)O3薄膜における圧電特性の膜厚依存性2023
- Author(s)
  茶谷那知、平井浩司、安岡慎之介、岡本一輝、舟窪浩
- Organizer
  第61回セラミックス基礎科学討論会
- Data Source
  KAKENHI-PROJECT-22K18307
[Presentation] Crystal structure and electrical properties of (Al, Ga, Sc)N temary thin films prepared by RF sputtering2023
- Author(s)
  Kazuki Okamoto, Reika Ota, Shinnosuke Yasuoka, Yoshihiro Ueoka, Yoshiro Kususe, Masami Mesuda, and Hiroshi Funakubo
- Organizer
  36th International Microprocesses and Nanotechnology Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K20427
[Presentation] Orientation Control of {100}-oriented Epitaxial Y-doped HfO2 Thin Films Using Lattice Matching2023
- Author(s)
  Yoshiki Maekawa, Koji Hirai, Kazuki Okamoto, Takao Shimizu, Hiroshi Funakubo
- Organizer
  2023 International Workshop on Dielectric Thin Films for Future Electron Devices - Science and Technology
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K13364
[Presentation] メモリ応用に向けた(Al,Sc)N 膜の薄膜化の検討2022
- Author(s)
  安岡慎之介, 大田怜佳, 岡本一輝, 石濱圭佑, 清水荘雄, 角嶋邦之, 上原雅人, 山田浩志, 秋山守人, 小金澤智之, L. S. Kumara, O. Seo, 坂田修身, 舟窪浩
- Organizer
  第83回応用物理学会　秋季学術講演会
- Data Source
  KAKENHI-PROJECT-22K20427
[Presentation] 水素ガス熱処理が(Al,Sc)N薄膜の強誘電特性へ及ぼす影響2022
- Author(s)
  岡本一輝, 安岡慎之介, 大田怜佳, 舟窪浩, 松井尚子, 入澤寿和, 恒川孝二
- Organizer
  第83回応用物理学会　秋季学術講演会
- Data Source
  KAKENHI-PROJECT-22K20427

1. 舟窪浩 (90219080)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
2. 木口賢紀 (70311660)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. 船窪浩

# of Collaborated Projects: 0 results

# of Collaborated Products: 7 results

Okamoto Kazuki 岡本 一輝

Research Projects

Research Products

Co-Researchers

酸化ハフニウム基材料における電界誘起相転移に関する研究Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

新規蛍石構造圧電体膜の機構解明と材料群開拓

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

酸化ハフニウム基強誘電体のナノロッド化による分極方位制御と圧電特性向上Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

室温合成可能な新規単純化合物強誘電体群の開拓

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Lowering strong coercive electric field of ferroelectric nitrides through utilization of the charged interfacesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Phase Identification of 850 nm Thick 7%YO<sub>1.5</sub>?93%HfO<sub>2</sub> Films by Surface and Cross-Sectional Raman Spectroscopies2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] The ferroelectric and piezoelectric properties of (Hf<sub>1?x </sub>Ce<sub> x </sub>)O<sub>2</sub> films on indium tin oxide/Pt/TiO<sub> x </sub>/SiO<sub>2</sub>/(100)Si substrates obtained using a no-heating radio-frequency magnetron sputtering deposition method2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Scalable ferroelectricity of 20?nm-thick (Al0.8Sc0.2)N thin films sandwiched between TiN electrodes2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Invariant polarization switching kinetics in an (Al0.8Sc0.2)N film with frequency and temperature2023

Author(s)

Journal Title

DOI

Data Source

[Presentation] Progress of Research on None-Perovskite Dielectric Materials2024

Author(s)

Organizer

Data Source

[Presentation] Effect of gas annealing on the ferroelectric property of (Al0.8Sc0.2)N thin film2024

Author(s)

Organizer

Data Source

[Presentation] Orientation control in Y:HfO2 ferroelectric thin films2024

Author(s)

Organizer

Data Source

[Presentation] PLD法によるCeO2-HfO2-ZrO2薄膜の作製と評価2024

Author(s)

Organizer

Data Source

[Presentation] High stability of ferroelectricity against hydrogen gas in (Al,Sc)N thin films2024

Author(s)

Organizer

Data Source

[Presentation] スパッタリング法によるHfO2-CeO2強誘電体薄膜のYSZ基板上への非加熱合成2024

Author(s)

Organizer

Data Source

[Presentation] Ga添加によるAlNへのSc固溶量の増加とその強誘電性および圧電性への影響2024

Author(s)

Okamoto Kazuki 岡本一輝