A study of quantized properties in transparent oxide microstructures
Project/Area Number |
20685013
|
Research Category |
Grant-in-Aid for Young Scientists (A)
|
Allocation Type | Single-year Grants |
Research Field |
Functional materials/Devices
|
Research Institution | Tohoku University |
Principal Investigator |
OHTOMO Akira Tohoku University, 大学院・理工学研究科, 教授 (10344722)
|
Project Period (FY) |
2008 – 2010
|
Project Status |
Completed (Fiscal Year 2010)
|
Budget Amount *help |
¥26,130,000 (Direct Cost: ¥20,100,000、Indirect Cost: ¥6,030,000)
Fiscal Year 2010: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2009: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2008: ¥19,760,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥4,560,000)
|
Keywords | 電子・磁気デバイス / 量子エレクトロニクス / 二次元電子ガス / 量子ホール効果 / 超伝導 / 電界効果トランジスタ / 二次元電子 / 半導体ナノ構造 / 量子効果 / 酸化物半導体 / 電子デバイス |
Research Abstract |
Using environmentally benign transparent oxide semiconductors, we have created clean two-dimensional electron systems and succeeded in observing field-effect induced superconductivity and the fractional quantum Hall effect. These phenomena are originated from Coulomb interaction between quantized complex particles and thereby can potentially be applied for a basic element of completely new computer architectures. The materials used in this study exhibits exceptionally strong Coulomb interaction, compared with conventional semiconductors, presenting promising opportunities to find oxide semiconductors more exotic than ever in condensed matter physics.
|
Report
(4 results)
Research Products
(158 results)
-
-
-
-
-
-
-
-
-
-
[Journal Article] Nitrogen doped Mg_xZn_<1-x>O/ZnO single heterostructure ultraviolet light-emitting diodes on ZnO substrates2010
Author(s)
K.Nakahara, S.Akasaka, H.Yuji, K.Tamura, T.Fujii, Y.Nishimoto, D.Takamizu, A.Sasaki, T.Tanabe, H.Takasu, H.Amaike, T.Onuma, S.S.Chichibu, A.Tsukazaki, A.Ohtomo, M.Kawasaki
-
Journal Title
Applied Physics Letters
Volume: 97
Related Report
Peer Reviewed
-
[Journal Article] Optimization of the growth conditions for molecular beam epitaxy of Mg_xZn_<1-x>O (0〓x〓0.12) films on Zn-polar ZnO substrates2010
Author(s)
H.Yuji, K.Nakahara, K.Tamura, S.Akasaka, Y.Nishimoto, D.Takamizu, T.Onuma, S.F.Chichibu, A.Tsukazaki, A.Ohtomo, M.Kawasaki
-
Journal Title
Japanese Journal of Applied Physics
Volume: 49
Related Report
Peer Reviewed
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Journal Article] Spin susceptibility and effective mass of two-dimensional electrons in Mg_x Zn_<1-x> O / ZnO heterostructures2008
Author(s)
A. Tsukazaki, A. Ohtomo, M. Kawasaki, S. Akasaka, H. Yuji, K. Tamura, K. Nakahara, T. Tanabe, A. Kamisawa, T. Gokmen, J. Shavani, M. Shayegan
-
Journal Title
Related Report
Peer Reviewed
-
[Journal Article] MgxZn1-x0-based Schottky photodiode for highly color-sensitive ultraviolet light detection2008
Author(s)
M. Nakano, T. Makino, A. Tsukazaki, K. Ueno, A. Ohtomo, T. Fukumura, H. Yuji, Y. Nishimoto, S. Akasaka, D. Takamizu, K. Nalcahra, T. Tanabe, A. Kamisawa, M. Kawasaki
-
Journal Title
Applied Physics Express 1
Related Report
Peer Reviewed
-
-
[Journal Article] Transparent polymer Schottky contact for a high performance visible-blind ultraviolet photodiode based on ZnO2008
Author(s)
M. Nakano, T. Makino, A. Tsukazaki, K. Ueno, A. Ohtomo, T. Fukumura, H. Yuji, S. Akasaka, K. Tamura, K. Nakahara, A. Kamisawa, M. Kawasaki
-
Journal Title
Applied Physics Letters 93
NAID
Related Report
Peer Reviewed
-
-
[Journal Article] Plasma-assisted molecular beam epitaxy of high optical quality MgZnO films on Zn-polar ZnO substrates2008
Author(s)
Y. Nishimoto, K. Nakahara, D. Takamizu, A. Sasaki, K. Tamura, S. Akasaka, H. Yuji, T. Fujii, T. Tanabe, H. Takasu, A. Tsukazaki, A. Ohtomo, T. Onuma, S. F. Chiphibu, M. Kawasaki
-
Journal Title
Applied Physics Express 1
NAID
Related Report
Peer Reviewed
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Epitaxial synthesis of double perovskite oxides2009
Author(s)
S. Chakraverty, A. Ohtomo, M. Kawasaki
Organizer
The Annual PD/RA Research Presentations (FY 2008) of the Global COE Program : Materials Integration International Center of Education and Research
Place of Presentation
宮城県仙台市
Year and Date
2009-03-09
Related Report
-
-
[Presentation] Self-assembled stearic acid monolayer on oxide surfaces2009
Author(s)
R. Y. Gunji, H. Hiraga, M. Nakano, A. Ohtomo, T. Makino, T. Fukumura, M. Kawasaki
Organizer
The Annual PD/RA Research Presentations (FY 2008) of the Global COE Program : Materials Integration International Center of Education and Research
Place of Presentation
宮城県仙台市(ポスター)
Year and Date
2009-03-09
Related Report
-
-
-
-
-
-
-
-
-
-
[Presentation] Emission blueshift of ZnO/MgZnO single quantum wells with n-type doping to barrier layers(Poster)2009
Author(s)
T.Makino, Y.Furuta, Y.Segawa, A.Tsukazaki, A.Ohtomo, Y.Hirayama, R.Shen, S.Takeyama, Y.Takagi, M.Kawasaki
Organizer
The OECS 11(International Conference on Optics of Excitons in Confined Systems)
Place of Presentation
Madrid, Spain
Related Report
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Charged exciton emission in n-type modulation-doped ZnO/MgZnO single quantum wells(Poster)2009
Author(s)
T.Makino, Y.Furuta, Y.Segawa, A.Tsukazaki, A.Ohtomo, Y.Hirayama, R.Shen, S.Takeyama, Y.Takagi, M.Kawasaki
Organizer
RIEC-CNSI Work Shop
Place of Presentation
Sendai, Japan
Related Report
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Transparent polymer Schottky contact on ZnO and related materials2008
Author(s)
M. Nakano, A. Tsukazaki, K. Ueno, R. Y. Gunji, T. Makino, A. Ohtomo, T. Fukumura, S. Akasaka, H. Yuji, K. Nakahara, M. Kawasaki
Organizer
2008 MRS Fall Meeting
Place of Presentation
Boston, USA
Related Report
-
-
-
-
-
[Presentation] MgZnO/ZnO界面における2DEGの電子有効質量と有効g因子の積(g^* m^*)の見積もり2008
Author(s)
塚崎敦, 大友明, 赤坂俊輔, 湯地洋行, 田村謙太郎, 中原健, 田辺哲弘, 神澤公, J.Shavani, T.Gokmen, M.Shayegan, 川崎雅司
Organizer
第116回東北大学金属材料研究所講演会
Place of Presentation
宮城県仙台市(ポスター)
Related Report
-
-
-
-
[Presentation] SrTiO_3の電界効果超伝導2008
Author(s)
上野和紀, 中村慎太郎, 下谷秀和, 大友明, 木村憲彰, 野島勉, 青木晴善, 岩佐義宏, 川崎雅司
Organizer
平成20年度東北大学金属材料研究所ワークショップ「酸化物ナノ構造の基礎と応用一化学と物理の融合」
Place of Presentation
宮城県仙台市(招待)
Related Report
-
-
[Presentation] 導電性高分子/酸化物界面デバイス2008
Author(s)
中野匡規, 塚崎敦, 上野和紀, 大友明, 福村知昭, 赤坂俊輔, 中原健, 田辺哲弘, 神澤公, 川崎雅司
Organizer
平成20年度東北大学金属材料研究所ワークショップ「酸化物ナノ構造の基礎と応用-化学と物理の融合」
Place of Presentation
宮城県仙台市
Related Report
-
-
-
-
-
[Presentation] Molecular beam epitaxy of ZnO based heterostructures for advanced optoelectronic devices2008
Author(s)
K. Nakahara, S. Akasaka, H. Yuji, K. Tamura, T. Fujii, Y. Nishimoto, D. Takamizu, A. Sasaki, T. Tanabe, A. Kamisawa, H. Amaike, T. Onuma, S. F. Chichibu, M. Nakano, T. Fukumura, A. Tsukazaki, A. Ohtomo, M. Kawasaki
Organizer
International Symposium on Compound Semiconductors (ISCS)
Place of Presentation
Rust, Germany(招待)
Related Report
-
-
-
-
-
-
[Presentation] Zn極性MgZnO/ZnOヘテロ接合の分子線エピタキシーとキャラクタリゼーション2008
Author(s)
赤坂俊輔, 塚崎敦, 湯地洋行, 田村謙太郎, 西本宜央, 高水大樹, 佐々木敦, 藤井哲雄, 中原健, 田辺哲弘, 神澤公, 大友明, 尾沼猛儀, 秩父重英, 川崎雅司
Organizer
第69回応用物理理学会学術講演会
Place of Presentation
愛知県春日井市
Related Report
-
[Presentation] MBE成長MgZnO/ZnO界面における2DEGの電子有効質量と有効g因子の積(g^* m^*)の見積もり2008
Author(s)
塚崎敦, 大友明, 赤坂俊輔, 湯地洋行, 田村謙太郎.中原健, 田辺哲弘, 神澤公, Shavani Javad, Gokmen Tayfun, Mansour Shayegan, 川崎雅司
Organizer
第69回応用物理理学会学術講演会
Place of Presentation
愛知県春日井市
Related Report
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Patent(Industrial Property Rights)] 半導体素子2010
Inventor(s)
中原健, 湯地洋行, 赤坂俊輔, 川崎雅司, 大友明, 塚崎敦, 福村知昭, 中野匡規
Industrial Property Rights Holder
中原健, 湯地洋行, 赤坂俊輔, 川崎雅司, 大友明, 塚崎敦, 福村知昭, 中野匡規
Patent Publication Number
2010-056504
Filing Date
2010-03-11
Related Report
-
-
-
-
[Patent(Industrial Property Rights)] ZnO系半導体及びZnO系半導体素子2009
Inventor(s)
中原健, 赤坂俊輔, 湯地洋行, 川崎雅司, 大友明, 塚崎敦
Industrial Property Rights Holder
中原健, 赤坂俊輔, 湯地洋行, 川崎雅司, 大友明, 塚崎敦
Patent Publication Number
2009-078959
Filing Date
2009-04-16
Related Report
-
-
[Patent(Industrial Property Rights)] ZnO系半導体素子2009
Inventor(s)
中原健, 田村謙太郎, 湯地洋行, 赤坂俊輔, 川崎雅司, 大友明, 塚崎敦
Industrial Property Rights Holder
中原健, 田村謙太郎, 湯地洋行, 赤坂俊輔, 川崎雅司, 大友明, 塚崎敦
Patent Publication Number
2009-200239
Filing Date
2009-09-03
Related Report
-
-
[Patent(Industrial Property Rights)] 半導体素子2009
Inventor(s)
赤坂俊輔, 湯地洋行, 中原健, 川崎雅司, 大友明, 塚崎敦
Industrial Property Rights Holder
赤坂俊輔, 湯地洋行, 中原健, 川崎雅司, 大友明, 塚崎敦
Patent Publication Number
2009-266938
Filing Date
2009-11-12
Related Report
-
[Patent(Industrial Property Rights)] ZnO系半導体素子2009
Inventor(s)
中原健, 湯地洋行, 川崎雅司, 大友明, 塚崎敦, 福村知昭, 中野匡規
Industrial Property Rights Holder
中原健, 湯地洋行, 川崎雅司, 大友明, 塚崎敦, 福村知昭, 中野匡規
Filing Date
2009-08-28
Related Report