Restructuring materials design principles of d-electron based transparent conducting oxide

• Project/Area Number: 23686002
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Applied materials science/Crystal engineering
• Research Institution: Tohoku University
• Principal Investigator: HITOSUGI Taro 東北大学, 原子分子材料科学高等研究機構, 准教授 (90372416)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥25,350,000 (Direct Cost: ¥19,500,000、Indirect Cost: ¥5,850,000); Fiscal Year 2012: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000); Fiscal Year 2011: ¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
• Keywords: セラミックス / 酸化物 / 透明導電膜 / 走査トンネル顕微鏡 / エピタキシャル薄膜 / 超伝導 / 超薄膜 / 走査プローブ顕微鏡 / 太陽電池 / 環境材料 / 物性実験

Research Abstract

Restructuring materials design principles of d-electron based transparent conducting oxide
We have performed two studies: atomic-scale investigation of the electronic structure of oxide thin films and development of a new transparent conductor. For the former, we revealed electronic structures and atomic arrangement of oxide thin films and SrTiO_3 substrate. The latter study consists of unveiling the mechanism of transparent superconductivity found in LiTi_02O_4.

Research Products

• [Journal Article] 走査トンネル顕微鏡を用いた酸化物薄膜成長のその場観察 (2013)
  • Author(s): 清水亮太、大澤健男、岩谷克也、一杉太郎
  • Journal Title: 応用物理学会誌 Volume: 82 Pages: 141-141
  • NAID: 10031140521
  • URL: http://www.jsap.or.jp/ap/2013/02/ob820141.xml
• [Journal Article] 透明超伝導体の開発 (2013)
  • Author(s): 大澤健男、一杉太郎
  • Journal Title: 日本セラミックス協会誌(セラミックス) Volume: 48 Pages: 58-58
• [Journal Article] Design of an effective vibration isolation system for measurements sensitive to low-frequency vibrations (2012)
  • Author(s): Katsuya Iwaya, Ryota Shimizu, Akira Teramura, Seiji Sasaki, Toru Itagaki, and Taro Hitosugi
  • Journal Title: J. Vac. Sci. Technol Volume: A30 Pages: 63201-1
  • URL: http://dx.doi.org/10.1116/1.4754700
  • Peer Reviewed
• [Journal Article] Effect of oxygen deficiencies on SrTiO_3(001) surface reconstructions (2012)
  • Author(s): Ryota Shimizu, Katsuya Iwaya, Takeo Ohsawa, Susumu Shiraki, Tetsuya Hasegawa, Tomihiro Hashizume, and Taro Hitosugi
  • Journal Title: Appl. Phys. Lett Volume: 100 Pages: 263106-263106
  • URL: http://dx.doi.org/10.1063/1.47304
  • Peer Reviewed
• [Journal Article] Observation of momentum space semi-localization in Si-doped .-Ga_2O_3 (2012)
  • Author(s): P. Richard, T. Sato, S. Souma, K. Nakayama, H. W. Liu, K. Iwaya, T. Hitosugi, H. Aida, H. Ding, and T. Takahashi
  • Journal Title: Appl. Phys. Lett Volume: 101 Pages: 232105-232105
  • URL: http://dx.doi.org/10.1063/1.4769109
  • Peer Reviewed
• [Journal Article] High-Temperature Stability of Nb12O29 Transparent Conductor (2012)
  • Author(s): Takeo Ohsawa, Tohru Suzuki, Taro Hitosugi
  • Journal Title: Thin Solid Films Volume: 526 Pages: 218-220
  • URL: http://dx.doi.org/10.1016/j.tsf.2012.11.025
  • Peer Reviewed
• [Journal Article] ペロブスカイト酸化物薄膜の初期成長過程 (2012)
  • Author(s): 大澤健男、岩谷克也、清水亮太、一杉太郎
  • Journal Title: 表面科学 Volume: 33 Pages: 357-362
  • NAID: 10030756530
  • URL: http://ci.nii.ac.jp/naid/10030756530
• [Journal Article] Observation of momentum space semi-localization in Si-doped β-Ga2O3 (2012)
  • Author(s): P. Richard et al.
  • Journal Title: Appl. Phys. Lett. Volume: 101 Issue: 23 Pages: 232105-232105
  • DOI: 10.1063/1.4769109
  • Peer Reviewed
• [Journal Article] Fabrication of Nb-Doped TiO2 Transparent Conducting Films by Postdeposition Annealing under Nitrogen Atmosphere (2012)
  • Author(s): Sohei Okazaki, Junpei Ohkubo, Shoichiro Nakao, Yasushi Hirose, Taro Hitosugi, and Tetsuya Hasegawa
  • Journal Title: Japanese Journal of Applied Physics Volume: 51 Issue: 11R Pages: 118003-118005
  • DOI: 10.1143/jjap.51.118003
  • NAID: 210000141605
  • Peer Reviewed
• [Journal Article] Ca-intercalated bilayer graphene: thinnest limit of superconducting C_6Ca (2012)
  • Author(s): K. Kanetani, K. Sugawara, T. Sato, R.Shimizu, K. Iwaya, T. Hitosugi, and T. Takahashi
  • Journal Title: Proc. Natl. Acad. Sci., USA Volume: vol.109 Issue: 48 Pages: 19610-19613
  • DOI: 10.1073/pnas.1208889109
  • Peer Reviewed
• [Journal Article] Design of an effective vibration isolation system for measurements sensitive to low-frequency vibrations (2012)
  • Author(s): Katsuya Iwaya, Ryota Shimizu, Akira Teramura, Seiji Sasaki, Toru Itagaki, and Taro Hitosugi
  • Journal Title: Applied physics Letters Volume: 101 Issue: 12 Pages: 123103-123106
  • DOI: 10.1063/1.4752466
  • Peer Reviewed
• [Journal Article] Effect of oxygen deficiency on SrTiO_3(001) surface reconstructions (2012)
  • Author(s): Ryota Shimizu, et al.
  • Journal Title: Applied Physics Letters Volume: 100 Issue: 26 Pages: 263106-263109
  • DOI: 10.1063/1.4730409
  • Peer Reviewed
• [Journal Article] Atomic-scale visualization of initial growth of homoepitaxial SrTiO3 thin film on an atomically ordered substrate (2011)
  • Author(s): Ryota Shimizu, Katsuya Iwaya, Takeo Ohsawa, Susumu Shiraki, Tetsuya Hasegawa, Tomihiro Hashizume, Taro Hitosugi
  • Journal Title: ACS Nano Volume: 5 Pages: 7967-7971
  • URL: http://dx.doi.org/10.1021/nn202477n
  • Peer Reviewed
• [Journal Article] Systematic analyses of vibration noise of a vibration isolation system for high-resolution scanning tunneling microscopes (2011)
  • Author(s): Katsuya Iwaya, Ryota Shimizu, Tomihiro Hashizume, and Taro Hitosugi
  • Journal Title: Rev. Sci. Instrum Volume: 82 Pages: 83702-83702
  • URL: http://dx.doi.org/10.1063/1.3622507
  • Peer Reviewed
• [Journal Article] SrTiO_3ホモエピタキシャル薄膜成長初期過程の原子スケール観察 (2011)
  • Author(s): 岩谷克也、大澤健男、清水亮太、一杉太郎
  • Journal Title: 日本結晶学会誌 Volume: 53 Pages: 353-358
  • NAID: 10029829790
  • URL: http://jglobal.jst.go.jp/public/20090422/201102299412545325
• [Journal Article] Atomic-scale visualization of initial growth of homoepitaxial SrTiO_3 thin film on an atomically ordered substrate (2011)
  • Author(s): Ryota Shimizu
  • Journal Title: ACS Nano Volume: 5 Issue: 8 Pages: 7967-7671
  • DOI: 10.1063/1.3622507
  • Peer Reviewed
• [Journal Article] Systematic analyses of vibration noise of a vibration isolation system for high-resolution scanning tunneling microscopes (2011)
  • Author(s): Katsuya Iwaya
  • Journal Title: Rev.Sci.Instrum. Volume: 82 Pages: 83702-83702
  • Peer Reviewed
• [Presentation] STM/STS studies of Ca-intercalated bilayer graphene (2013)
  • Author(s): R. Shimizu, K. Sugawara, K. Kanetani, K. Iwaya, T. Sato, T. Takahashi, T. Hitosugi
  • Organizer: APS March Meeting, Mar. 18-22, 2013
  • Place of Presentation: Baltimore, USA
• [Presentation] STM studies of sub-monolayer SrO and LaAlO3 film growth on SrTiO3(001) substrate surfaces (2013)
  • Author(s): T. Ohsawa, K. Iwaya, R. Shimizu, S. Shiraki, T. Hitosugi
  • Organizer: APS March Meeting, Mar. 18-22, 2013
  • Place of Presentation: Baltimore, USA
• [Presentation] LiTi2O4 epitaxial films: A transparent superconductor (2013)
  • Author(s): A. Kumatani, T. Ohsawa, R. Shimizu, Y. Takagi, S. Shiraki, T. Hitosugi
  • Organizer: The AIMR International Symposium 2013 (AMIS2013)
  • Place of Presentation: Sendai, Japan
• [Presentation] LaAlO3/SrTiO3(001)-(√13×√13)極薄ヘテロ構造の電子伝導特性 (2013)
  • Author(s): 大澤健男，清水亮太，岩谷克也，白木将，一杉太郎
  • Organizer: 第60回応用物理学春季学術講演会
  • Place of Presentation: 神奈川工科大学
• [Presentation] 酸化物基板の最表面構造:その平坦化プロセス依存性 (2012)
  • Author(s): 清水亮太、岩谷克也、大澤健男、白木将、一杉太郎
  • Organizer: 第73回応用物理学会学術講演会
  • Place of Presentation: 愛媛大学
• [Presentation] LaAlO_3/SrTiO_3(001)-(√13×√13)ヘテロ界面の形成初期過程観察 (2012)
  • Author(s): 大澤健男、清水亮太、岩谷克也、白木将、一杉太郎
  • Organizer: 第73回応用物理学会学術講演会
  • Place of Presentation: 愛媛大学
• [Presentation] Visualizing Atomic-Scale Thin-Film Growth Process on SrTiO_3(001) (2012)
  • Author(s): T. Ohsawa, R. Shimizu, K. Iwaya, S. Shiraki, T. Hitosugi
  • Organizer: Workshop on Oxide Electronics 19 (WOE19)
  • Place of Presentation: Apeldoorn, Netherlands
• [Presentation] Spatially Resolved Nano-Scale Characterization of Electronic States in SrTiO_3(001) Surfaces by STM/STS (2012)
  • Author(s): K. Iwaya, T. Ohsawa, R. Shimizu, T. Hashizume, T. Hitosugi
  • Organizer: APS March Meeting
  • Place of Presentation: Boston, Massachusetts
• [Presentation] STM studies of perovskite oxide thin films (2012)
  • Author(s): K. Iwaya, R. Shimizu, T. Ohsawa, T. Hitosugi
  • Organizer: 20th International Colloquium on Scanning Probe Microscopy (ICSPM20)
  • Place of Presentation: Okinawa, Japan
• [Presentation] Atomic-scale visualization of initial growth process of homoepitaxial SrTiO3 on atomically-controlled SrTiO3(001) substrate surfaces (2012)
  • Author(s): R. Shimizu, K. Iwaya, T. Ohsawa, S. Shiraki, T. Hitosugi
  • Organizer: Workshop on Oxide Electronics 19 (WOE19)
  • Place of Presentation: Apeldoorn, Netherlands
• [Presentation] Visualizing Atomic-Scale Thin-Film Growth Process on SrTiO3(001) (2012)
  • Author(s): T. Ohsawa, R. Shimizu, K. Iwaya, S. Shiraki, T. Hitosugi
  • Organizer: Workshop on Oxide Electronics 19 (WOE19)
  • Place of Presentation: Apeldoorn, Netherlands
• [Presentation] Surface reconstructions on the SrTiO3(001) surface: the effect of oxygen deficiency in the bulk (2012)
  • Author(s): S. Shiraki, R. Shimizu, K. Iwaya, T. Ohsawa, T. Hitosugi
  • Organizer: 14th International Conference on Vibrations at Surfcaes (VAS14)
  • Place of Presentation: Kobe, Japan
• [Presentation] STM studies of SrTiO3(001) surfaces (2012)
  • Author(s): K. Iwaya, T. Ohsawa, R. Shimizu, T. Hitosugi
  • Organizer: 14th International Conference on Vibrations at Surfcaes (VAS14)
  • Place of Presentation: Kobe, Japan
• [Presentation] Deposition of lithium taitanate epitaxial thin flims using pulsed laser deposition (2012)
  • Author(s): S. Shiraki, A. Kumatani, Y. Takagi, T. Suzuki, H. Oki, T. Ohsawa, T. Hitosugi
  • Organizer: 13th Asian Conference on Solid State Ionics (ACSSI-2012)
  • Place of Presentation: Sendai, Japan
• [Presentation] ペロブスカイト酸化物薄膜成長時における電子状態・伝導特性の検証 (2012)
  • Author(s): 大澤健男，鈴木竜，清水亮太，岩谷克也，白木将，一杉太郎
  • Organizer: 第32回表面科学学術講演会
  • Place of Presentation: 東北大学
• [Presentation] 酸化物基板の最表面構造: その平坦化プロセス依存性 (2012)
  • Author(s): 清水亮太、岩谷克也、大澤健男、白木将、一杉太郎
  • Organizer: 第73回応用物理学会学術講演会
  • Place of Presentation: 愛媛大学
• [Presentation] LaAlO3/SrTiO3(001)-(√13×√13)ヘテロ界面の形成初期過程観察 (2012)
  • Author(s): 大澤健男、清水亮太、岩谷克也、白木将、一杉太郎
  • Organizer: 第73回応用物理学会学術講演会
  • Place of Presentation: 愛媛大学
• [Presentation] チタン酸リチウムエピタキシャル薄膜作製条件の検討 (2012)
  • Author(s): 熊谷明哉、清水亮太、高木由貴、大澤健男、鈴木竜、白木将、一杉太郎
  • Organizer: 第73回応用物理学会学術講演会
  • Place of Presentation: 愛媛大学
• [Presentation] SrTiO3(001)表面再構成に及ぼす酸素欠損の寄与 (2012)
  • Author(s): 清水亮太
  • Organizer: 第59回応用物理学関係連合講演会
  • Place of Presentation: 早稲田大学(東京)
• [Presentation] SrTiO3(001)-(√13×√13)基板表面のSTM/XPS (2012)
  • Author(s): 大澤健男
  • Organizer: 第59回応用物理学関係連合講演会
  • Place of Presentation: 早稲田大学(東京)
• [Presentation] STM/STSによるTiO2終端SrTiO3(001)表面の局所電子状態の観察 (2011)
  • Author(s): 岩谷克也
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学(富山市)
• [Presentation] SrTiO3(001)-(√13x√13)エピタキシャル基板表面の構造解析 (2011)
  • Author(s): 清水亮太
  • Organizer: 第72回応用物理学関係連合講演会
  • Place of Presentation: 山形大学(山形市)
• [Presentation] SrO層堆積により誘起されるSrTiO3(001)基板表面の酸素欠損 (2011)
  • Author(s): 大澤健男
  • Organizer: 第72回応用物理学関係連合講演会
  • Place of Presentation: 山形大学(山形市)
• [Presentation] 高屈折率透明電極のGaN系発光デバイスへの展開
  • Author(s): 一杉 太郎
  • Organizer: 機械学会 IIP2013 情報・知能・精密機器部門（IIP部門）講演会 オーガナイズドセッション「窒化物半導体デバイスの精密加工プロセス」
  • Place of Presentation: 東洋大学 白山キャンパス
  • Invited
• [Presentation] STM/STSで探るSrTiO3薄膜の電子状態
  • Author(s): 一杉 太郎
  • Organizer: 日本表面科学会 東北・北海道支部 講演会
  • Place of Presentation: 日本大学 郡山
  • Invited
• [Presentation] エピタキシャル薄膜を活用した Li イオン電池界面研究
  • Author(s): 一杉 太郎
  • Organizer: 革新的エネルギー機能を発現する界面ナノ物質プロセッシング
  • Place of Presentation: 東北大学
  • Invited
• [Presentation] Liイオン電池研究から生まれた”透明な超伝導体”
  • Author(s): 一杉 太郎
  • Organizer: 高分子学会 高分子同友会 講演会
  • Place of Presentation: 東京
  • Invited
• [Presentation] How do oxide thin films grow?
  • Author(s): Taro Hitosugi
  • Organizer: ソウル国立大学-東京大学ワークショップ
  • Place of Presentation: ソウル（韓国）
  • Invited
• [Presentation] 透明導電膜の現状と将来展望
  • Author(s): 一杉 太郎
  • Organizer: 電子ジャーナルセミナー 透明導電膜とそのフィルム化技術
  • Place of Presentation: 東京
  • Invited
• [Presentation] Atomic-scale investigation of LaAlO3/SrTiO3 interface
  • Author(s): Taro Hitosugi
  • Organizer: International Conference on Emerging Advanced Nanomaterials (ICEAN)
  • Place of Presentation: Brisbane (Australia)
  • Invited
• [Presentation] Atomistic growth chemistry of oxides
  • Author(s): Taro Hitosugi
  • Organizer: NanoS&T-2012
  • Place of Presentation: Qingdao (China)
  • Invited
• [Book] 透明超伝導体の開発 (2013)
  • Author(s): 大澤健男、一杉太郎
  • Publisher: 高温超伝導現象と用途開発最前線NTS
• [Book] TiO_2透明導電体のスパッタ成膜"光学薄膜の最適設計・成膜技術と膜厚・膜質・光学特性の制御 (2013)
  • Author(s): 一杉太郎、山田直臣
  • Publisher: 技術情報協会
• [Book] 高温超伝導現象と用途開発最前線 (2013)
  • Author(s): 大澤健男、一杉太郎
  • Publisher: 透明超伝導体の開発
• [Book] 技術情報協会 (2013)
  • Author(s): 一杉太郎、山田直臣
  • Publisher: TiO2透明導電体のスパッタ成膜
• [Book] (分担執筆)表面新物質創製 (2012)
  • Author(s): 一杉太郎
  • Publisher: 共立出版
• [Remarks]
  • URL: http://www.wpi-aimr.tohoku.ac.jp/hitosugi_labo/
• [Remarks] 東北大学 一杉研究室
  • URL: http://www.wpi-aimr.tohoku.ac.jp/hitosugi_labo/