"S. Akasaka,A. Tsukazaki,K. Nakahara,A. Ohtomo,M. Kawasaki","Improvement of electron mobility above 100,000cm<sup>2</sup> V<sup>-1</sup>s<sup>-1</sup> in Mg<sub>x</sub>Zn<sub>1-x</sub>O/ZnO heterostructures",,"Japanese Journal of Applied Physics","The Japan Society of Applied Physics","Vol. 50",,"  080215-1-3",2011,Aug.
"S. Akasaka,K. Nakahara,H. Yuji,A. Tsukazaki,A. Ohtomo,M. Kawasaki","Preparation of an epitaxy-ready surface of a ZnO(0001) substrate",,"Applied Physics Express","The Japan Society of Applied Physics","Vol. 4","No. 3","  035701-1-3",2011,Mar.
"A. Tsukazaki,S. Akasaka,K. Nakahara,Y. Ohno,H. Ohno,D. Maryenko,A. Ohtomo,M. Kawasaki","Observation of the fractional quantum Hall effect in an oxide",,"Nature Materials","Nature Publishing Group","Vol. 9","No. 11","pp. 889-893",2010,Oct.
"塚崎 敦,中野 匡規,大友 明,上野 和紀,赤坂 俊輔,湯地 洋行,中原 健,福村 知昭,川崎 雅司","酸化亜鉛系分極不整合界面の2次元伝導と導電性高分子を用いた伝導性制御",,"まてりあ",,"Vol. 49","No. 7","pp. 312",2010,July
"S. Akasaka,K. Nakahara,A. Tsukazaki,A. Ohtomo,M. Kawasaki","Mg<sub>x</sub>Zn<sub>1-x</sub>O films with a low residual donor concentration (< 10<sup>15</sup> cm<sup>-3</sup>) grown by molecular beam epitaxy",,"Applied Physics Express","The Japan Society of Applied Physics","Vol. 3","No. 7","  071101-1-3",2010,July
"H. Yuji,K. Nakahara,K. Tamura,S. Akasaka,Y. Nishimoto,D. Takamizu,T. Onuma,S. F. Chichibu,A. Tsukazaki,A. Ohtomo,M. Kawasaki","Optimization of the growth conditions for molecular beam epitaxy of Mg<sub>x</sub>Zn<sub>1-x</sub>O (0 <= x <= 0.12) films on Zn-polar ZnO substrates",,"Japanese Journal of Applied Physics","The Japan Society of Applied Physics","Vol. 49","No. 7","  071104-1-5",2010,July
"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. F. Chichibu,A. Tsukazaki,A. Ohtomo,M. Kawasaki","Nitrogen doped Mg<sub>x</sub>Zn<sub>1-x</sub>O/ZnO single heterostructure ultraviolet light-emitting diodes on ZnO substrates",,"Applied Physics Letters","American Institute of Physics","Vol. 97","No. 1","  013501-1-3",2010,July
"A. Tsukazaki,S. Akasaka,K. Nakahara,A. Kamisawa,Y. Ohno,H. Ohno,A. Ohtomo,M. Kawasaki","Fractional quantum Hall effect in MgZnO/ZnO heterostructures","The 2010 WPI-AIMR Annual Workshop",,,,,,2010,Mar.
"M. Nakano,A. Tsukazaki,A. Ohtomo,K. Ueno,S. Akasaka,H. Yuji,K. Nakahara,T. Fukumura,M. Kawasaki","Electronic-field control of two-dimensional electrons in polymer-gated-oxide semiconductor heterostructures",,"Advanced Materials",,"Vol. 22","No. 8","pp. 876-879",2010,Feb.
"A. Tsukazaki,A. Ohtomo,S. Akasaka,K. Nakahara,Y. Ohno,H. Ohno,M. Kawasaki","The fractional quantum Hall effect in MgZnO/ZnO based haterostructures","16th International Workshop on Oxide Electronics",,,,,,2009,Oct.
"牧野 哲征,瀬川 勇三朗,塚崎 敦,大友 明,沈 睿,嶽山 正二郎,赤坂 俊輔,中原 健,川崎 雅司","ZnO単一ヘテロ構造における磁気発光特性","日本物理学会2009年年次・秋季大会",,,,,,2009,Sept.
"塚崎 敦,赤坂 俊輔,中原 健,神澤 公,大野 裕三,大野 英男,大友 明,川崎雅司","2DEG移動度100,000 cm<sup>2</sup>V<sup>-1</sup>s<sup>-1</sup>を越えるMgZnO/ZnO界面の実現","2009年秋季第70回応用物理学会学術講演会",,,,,,2009,Sept.
"A. Tsukazaki,M. Nakano,S. Akasaka,K. Nakahara,A. Kamisawa,A. Ohtomo,M. Kawasaki","Transistor operation at MgZnO/ZnO interface by Schottky gating with conducting polymer","The 18th International Conference on Electronic Properties of Two-Dimensional Systems (EP2DS-18)",,,,,,2009,July
"A. Tsukazaki,M. Nakano,S. Akasaka,K. Nakahara,A. Kamisawa,A. Ohtomo,M. Kawasaki","Electric-field control of two dimensional transport at MgZnO/ZnO interfaces by conducting polymer Schottky gate","MRS 2009 Spring Meeting",,,,,,2009,Apr.
"M. Nakano,T. Makino,A. Tsukazaki,K. Ueno,A. Ohtomo,T. Fukumura,H. Yuji,Y. Nishimoto,S. Akasaka,D. Takamizu,K. Nakahara,T. Tanabe,A. Kamisawa,M. Kawasaki","Mg<sub>x</sub>Zn<sub>1-x</sub>O-based Schottky photodiode for highly color-selective ultraviolet light detection",,"Applied Physics Express",,"Vol. 1","No. 12","  121201-1-3",2008,Dec.
"A. Tsukazaki,A. Ohtomo,M. Kawasaki,S. Akasaka,H. Yuji,K. Tamura,K. Nakahara,T. Tanabe,A. Kamisawa,T. Gokmen,J. Shabani,M. Shayegan","Spin susceptibility and effective mass of two-dimensional electrons in Mg<sub>x</sub>Zn<sub>1-x</sub>O/ZnO heterostructures",,"Physical Review B",,"Vol. 78","No. 23","  233308-1-4",2008,Dec.
"M. Nakano,T. Makino,A. Tsukazaki,K. Ueno,A. Ohtomo,T. Fukumura,H. Yuji,S. Akasaka,K. Tamura,K. Nakahara,T. Tanabe,A. Kamisawa,M. Kawasaki","Transparent polymer Schottky contact for a high performance visible-blind ultraviolet photodiode based on ZnO",,"Applied Physics Letters",,"Vol. 93","No. 12","  123309-1-3",2008,Sept.
"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. Chichibu,M. Kawasaki","Plasma-assisted molecular beam epitaxy of high optical quality MgZnO films on Zn-polar ZnO substrates",,"Applied Physics Express",,"Vol. 1","No. 9","  091202-1-3",2008,Aug.
"A. Tsukazaki,H. Yuji,S. Akasaka,K. Tamura,K. Nakahara,T. Tanabe,H. Takasu,A. Ohtomo,M. Kawasaki","High electron mobility exceeding 10<sup>4</sup> cm<sup>2</sup>V<sup>-1</sup>s<sup>-1</sup> in Mg<sub>x</sub>Zn<sub>1-x</sub>O/ZnO single heterostructures grown by molecular beam epitaxy",,"Applied Physics Express",,"Vol. 1","No. 5","  055004-1-3",2008,May
"H. Yuji,K. Nakahara,K. Tamura,S. Akasaka,A. Sasaki,T. Tanabe,H. Takasu,T. Onuma,S. F. Chichibu,A. Tsukazaki,A. Ohtomo,M. Kawasaki","Mg<sub>x</sub>Zn<sub>1-x</sub>O epitaxial films grown on ZnO substrates by molecular beam epitaxy",,"Proceedings of SPIE (Zinc Oxide Materials and Devices III, edited by F. H. Teherani and C. W. Litton)",,"vol. 6895",,"p. 68950D",2008,Feb.
"A. Ohtomo,A. Tsukazaki,T. Kita,Y. Ohno,H. Ohno,K. Nakahara,H. Yuji,K. Tamura,S. Akasaka,H. Takasu,M. Kawasaki","Quantum Hall effect in ZnO","WPI & IFCAM Joint Workshop "Challenge of Interdisciplinary Materials Science to Technological Innovation of the 21st Century"",,,,,,2008,Feb.