"藤田 貴啓,小塚 裕介,松野丈夫,打田正輝,塚崎 敦,有馬 孝尚,川崎 雅司","磁気抵抗によるTb2Ir2O7薄膜のall-in-all-out反強磁性ドメインのプローブ",,,,,,,2017,Sept. "小塚 裕介,藤田貴啓,打田正輝,野島 勉,塚崎 敦,松野丈夫,有馬 孝尚,川崎 雅司","走査型SQUID顕微鏡を用いたTb2Ir2O7薄膜のall-in-all-out反強磁性ドメインの可視化",,,,,,,2017,Sept. "A Vishnu Radhan,小塚 裕介,打田正輝,J Falson,塚崎 敦,川崎 雅司","Alloy Disorder Modulated Electron Transport at MgxZn1-xO/ZnO Heterointerface",,,,,,,2017,Mar. "小塚 裕介,阪口 敦史,Aswin Vishn Radhan,J Falson,Denis Maryenko,打田正輝,塚崎 敦,川崎 雅司","MgxZn1-xO/ZnOヘテロ構造を用いた二次元電子系/超伝導接合",,,,,,,2016,Sept. "藤田貴啓,打田正輝,小塚 裕介,佐野航,小川 翔平,塚崎 敦,有馬 孝尚,川崎 雅司","パイロクロア型イリジウム酸化物ヘテロ界面における磁気ドメイン壁伝導",,,,,,,2016,Mar. "T. C. Fujita,Yusuke Kozuka,Masaki Uchida,Atsushi Tsukazaki,Takahisa Arima,Masashi Kawasaki","Odd-parity magnetoresistance in pyrochlore iridate thin films with broken time-reversal symmetry","2015 American Physical Society March Meeting",,,,,,2015,Mar. "藤田貴啓,佐野航,打田正輝,小塚 裕介,塚崎 敦,有馬 孝尚,川崎 雅司","パイロクロア型Ir酸化物の磁気ドメイン境界における磁気輸送現象",,,,,,,2015,Mar. "小川翔平,藤田貴啓,打田正輝,小塚 裕介,塚崎 敦,有馬 孝尚,川崎 雅司","パイロクロア型Ir酸化物薄膜の磁気ドメイン制御と局所輸送特性",,,,,,,2015,Mar. "打田正輝,J Falson,瀬川 勇三郎,小塚 裕介,塚崎 敦,川崎 雅司","MgxZn1-xO/ZnOヘテロ構造における面内Mg分布の評価と制御",,,,,,,2015,Mar. "反保 智貴,J Falson,小塚 裕介,打田正輝,Denis Maryenko,塚崎 敦,川崎 雅司","MgZnO/ZnO量子ホール系におけるランダウ・ゼーマン分裂比の電界効果制御",,,,,,,2015,Mar. "田中 一成,J Falson,小塚 裕介,打田正輝,久保田 将司,Denis Maryenko,塚崎 敦,叶 劍挺,岩佐義宏,川崎 雅司","周期的なポテンシャル変調場におけるMgZnO/ZnO二次元電子系の磁気輸送特性",,,,,,,2015,Mar. "Yuki Ohuchi,Masaki Uchida,Yusuke Kozuka,N Rezaei,M. S. Baharamy,Ryotaro Arita,K Ueno,Atsushi Tsukazaki,Masashi Kawasaki","Anomalous and Topological Hall Effects in EuO Thin Films","21st International Workshop on Oxide Electronics",,,,,,2014,Sept. "大内祐貴,打田正輝,小塚 裕介,上野 和紀,塚崎 敦,川崎 雅司","EuO薄膜におけるトポロジカルホール効果",,,,,,,2014,Sept. "T. C. Fujita,Yusuke Kozuka,Masaki Uchida,Atsushi Tsukazaki,Takahisa Arima,Masashi Kawasaki","Detecting the Magnetic Domains of All-In-All-Out Spin Structure via Magnetotransport in Pyrochlore Iridate Thin Films","21st International Workshop on Oxide Electronics",,,,,,2014,Sept. "藤田貴啓,佐野航,打田正輝,小塚 裕介,塚崎 敦,有馬 孝尚,川崎 雅司","パイロクロア型イリジウム酸化物ヘテロ接合における磁気ドメイン境界の制御と界面伝導の観測",,,,,,,2014,Sept. "藤田貴啓,小塚 裕介,打田正輝,塚崎 敦,有馬 孝尚,川崎 雅司","パイロクロア型Ir酸化物ヘテロ界面の作製と電気伝導特性",,,,,,,2014,Mar. "A. Tsukazaki,A. Ohtomo,M. Kawasaki","Surface and interface engineering of ZnO based heterostructures fabricated by pulsed-laser deposition",,"Journal of Physics D: Applied Physics","IOP Publishing","Volume 47","Number 3"," 034003-1-19",2013,Dec. "S. Akasaka,A. Tsukazaki,K. Nakahara,A. Ohtomo,M. Kawasaki","Improvement of electron mobility above 100,000cm2 V-1s-1 in MgxZn1-xO/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. "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 MgxZn1-xO/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 "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 "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 MgxZn1-xO (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 "S. Akasaka,K. Nakahara,A. Tsukazaki,A. Ohtomo,M. Kawasaki","MgxZn1-xO films with a low residual donor concentration (< 1015 cm-3) grown by molecular beam epitaxy",,"Applied Physics Express","The Japan Society of Applied Physics","Vol. 3","No. 7"," 071101-1-3",2010,July "H. T. Yuan,H. Shimotani,A. Tsukazaki,A. Ohtomo,M. Kawasaki,Y. Iwasa","Hydrogenation-induced surface polarity recognition and proton memory behavior at protic-ionic-liquid/oxide electric-double-layer interfaces",,"Journal of the American Chemical Society","American Chemical Society","Vol. 132","No. 19","pp. 6672-6678",2010,May "T. Makino,Y. Furuta,A. Tsukazaki,A. Ohtomo,Y. Segawa,R. Shen,S. Takeyama,Y. Takagi,M. Kawasaki","Collective effects in magneto-optical spectra of high-density electron system in modulation-doped ZnO/MgxZn1-xO quantum wells","The 2010 WPI-AIMR Annual Workshop",,,,,,2010,Mar. "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. "M. Nakano,A. Tsukazaki,K. Ueno,R. Y. Gunji,A. Ohtomo,T. Fukumura,M. Kawasaki","Spatial distribution of two-dimensional electron gas in a ZnO/Mg0.2Zn0.8O heterostructure probed with a conducting polymer Schottky contact",,"Applied Physics Letters",,"Vol. 96","No. 5"," 052116-1-3",2010,Feb. "大友 明,塚崎 敦,川崎 雅司","ZnOヘテロ接合の表面・界面制御と量子伝導","第29回表面科学学術講演会",,,,,,2009,Oct. "T. Makino,Y. Furuta,Y. Segawa,A. Tsukazaki,A. Ohtomo,Y. Hirayama,R. Shen,S. Takeyama,Y. Takagi,M. Kawasaki","Charged exciton emission in n-type modulation-doped ZnO/MgZnO single quantum wells","RIEC-CNSI Work Shop",,,,,,2009,Oct. "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. "T. Makino,Y. Furuta,Y. Segawa,A. Tsukazaki,A. Ohtomo,Y. Hirayama,R. Shen,S. Takeyama,Y. Takagi,M. Kawasaki","Magneto-optical study of n-type modulation-doped ZnO/MgxZn(1-x)O single quantum well structures",,"Physical Review B",,"Vol. 80","No. 15"," 155333-1-5",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 cm2V-1s-1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. "T. Makino,Y. Furuta,Y. Segawa,A. Tsukazaki,A. Ohtomo,Y. Hirayama,R. Shen,S. Takeyama,Y. Takagi,M. Kawasaki","Emission blueshift of ZnO/ MgZnO single quantum wells with n-type doping to barrier layers","The OECS 11 (International Conference on Optics of Excitons in Confined Systems)",,,,,,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. "H. T. Yuan,H. Shimotani,A. Tsukazaki,A. Ohtomo,M. Kawasaki,Y. Iwasa","High-density carrier accumulation in ZnO field-effect transistors gated by electric double layers of ionic liquids",,"Advanced Functional Materials",,"Vol. 19","No. 7","pp. 1046-1053",2009,Apr. "T. Makino,Y. Furuta,A. Tsukazaki,A. Ohtomo,Y. Segawa,Y. Takagi,M. Kawasaki","Quantum-confined Stark and Franz?Keldysh effects in ZnO/MgxZn1-xO quantum well structures","The WPI-AIMR 2009 March Annual Workshop",,,,,,2009,Mar. "古田 洋平,牧野 哲征,塚崎 敦,大友 明,瀬川 勇三朗,平山 康博,嶽山 正二郎,高木 芳弘,川崎 雅司","ZnO変調ドープ量子井戸における励起子発光・反射の偏光特性","日本物理学会第64回年次大会",,,,,,2009,Mar. "T. Makino,A. Tsukazaki,A. Ohtomo,M. Kawasaki,Y. Segawa","Optical and electrical properties of ZnO and related hetero-structures",,"Proceedings of the International Workshop on Photonics and Applications (Advances in Optics, Photonics, Spectroscopy & Applications V, edited by P. Brechignac, K. Hakuta, H. Lim, N.V. Hieu, N.D. Hung and V. A. Orlovich)","Vietnam Academic Press",,,"pp. 72-78",2009,Feb. "A. Tsukazaki,A. Ohtomo,D. Chiba,Y. Ohno,H. Ohno,M. Kawasaki","Low-temperature field-effect and magnetotransport properties in a ZnO based heterostructure with atomic-layer-deposited gate dielectric",,"Applied Physics Letters",,"Vol. 93","No. 24"," 241905-1-3",2008,Dec. "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","MgxZn1-xO-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 MgxZn1-xO/ZnO heterostructures",,"Physical Review B",,"Vol. 78","No. 23"," 233308-1-4",2008,Dec. "T. Makino,Y. Segawa,A. Tsukazaki,A. Ohtomo,M. Kawasaki","Photoexcitation screening of the built-in electric field in ZnO single quantum wells",,"Applied Physics Letters","American Institute of Physics","Vol. 93","No. 12"," 121907-1-3",2008,Sept. "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. "R. Y. Gunji,M. Nakano,A. Tsukazaki,A. Ohtomo,T. Fukumura,M. Kawasaki","Polymer Schottky contact on O-polar ZnO with silane coupling agent as surface protective layer",,"Applied Physics Letters",,"Vol. 93","No. 1"," 012104-1-3",2008,July "A. Tsukazaki,A. Ohtomo,M. Kawasaki","Epitaxial growth and transport properties of high-mobility ZnO-based heterostructures",,"Advances in Materials Research (edited by Y. Fujikawa, K. Nakajima and T. Sakurai)","Springer, Berlin","vol. 10",,"pp. 77-85",2008,July "A. Tsukazaki,H. Yuji,S. Akasaka,K. Tamura,K. Nakahara,T. Tanabe,H. Takasu,A. Ohtomo,M. Kawasaki","High electron mobility exceeding 104 cm2V-1s-1 in MgxZn1-xO/ZnO single heterostructures grown by molecular beam epitaxy",,"Applied Physics Express",,"Vol. 1","No. 5"," 055004-1-3",2008,May "A. Tsukazaki,A. Ohtomo,M. Nakano,M. Kawasaki","Photoinduced insulator-to-metal transition in ZnO/Mg0.15Zn0.85O heterostructures",,"Applied Physics Letters",,"Vol. 92","No. 5"," 052105-1-3",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. "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","MgxZn1-xO 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. "大友 明,塚崎 敦,川崎 雅司","ZnOヘテロ接合の表面・界面制御と量子伝導",,"表面科学",,"Vol. 29","No. 1","pp. 10-17",2008,Jan. "M. Nakano,A. Tsukazaki,R. Y. Gunji,K. Ueno,A. Ohtomo,T. Fukumura,M. Kawasaki","Schottky contact on a ZnO (0001) single crystal with conducting polymer",,"Applied Physics Letters",,"Vol. 91","No. 14"," 142113-1-3",2007,Oct. "A. Ohtomo,A. Tsukazaki,M. Kawasaki","Quantum Hall effect in polar oxide heterostructures","The 14th International Workshop on Oxide Electronics (WOE14)",,,,,,2007,Oct. "塚崎 敦,大友 明,北 智洋,大野 裕三,大野 英男,川崎 雅司","ZnO/MgZnO界面における量子ホール効果",,"固体物理",,"Vol. 42","No. 9","pp. 559-567",2007,Sept. "H. Shimotani,H. Asanuma,A. Tsukazaki,A. Ohtomo,M. Kawasaki,Y. Iwasa","Insulator-to-metal transition in ZnO by electric double layer gating",,"Applied Physics Letters",,"Vol. 91","No. 8"," 082106-1-3",2007,Aug. "M. Kubota,T. Onuma,A. Tsukazaki,A. Ohtomo,M. Kawasaki,T. Sota,S. F. Chichibu","Recombination dynamics of excitons in Mg0.11Zn0.89O alloy films grown using the high-temperature-annealed self-buffer layer by laser-assisted molecular-beam epitaxy",,"Applied Physics Letters",,"Vol. 90","No. 14"," 141903-1-3",2007,Aug. "A. Ohtomo,A. Tsukazaki,T. Kita,Y. Ohno,H. Ohno,M. Kawasaki","Quantum Hall effect in polar oxide heterostructures","DFG-Kolloquium “Quantum Hall System”",,,,,,2007,June "大友 明,塚崎 敦,北 智洋,大野 裕三,大野 英男,川崎雅司","ZnOの量子ホール効果",,"応用電子物性分科会誌",,"Vol. 13","No. 2","p. 73-78",2007,June "A. Tsukazaki,A. Ohtomo,T. Kita,Y. Ohno,H. Ohno,M. Kawasaki","Quantum Hall effect in polar oxide heterostructures",,"Science",,"Vol. 315","No. 5817","pp. 1388-1391",2007,Mar. "T. Makino,A. Tsukazaki,A. Ohtomo,M. Kawasaki,H. Koinuma","Shifting donor-acceptor photoluminescence in N-doped ZnO",,"Journal of the Physical Society of Japan","日本物理学会","Vol. 75","No. 7"," 073701-1-4",2006,Sept. "A. Ohtomo,A. Tsukazaki,M. Kawasaki","Combinatorial technology towards ZnO-based light-emitting diodes","Asia-Pacific Optical Communications (APOC) 2006",,,,,,2006,Sept. "T. Makino,A. Tsukazaki,A. Ohtomo,M. Kawasaki,H. Koinuma","Hole transport in p-type ZnO",,"Japanese Journal of Applied Physics Part 1-Regular Papers Brief Communications & Review Papers",,"Vol. 45","No. 8A","pp. 6346-6351",2006,Aug. "T. Makino,A. Tsukazaki,A. Ohtomo,M. Kawasaki,H. Koinuma","Analysis of time-resolved donor-acceptor photoluminescence of N-doped ZnO",,"Journal of the Physical Society of Japan","日本物理学会","Vol. 75","No. 9"," 095001-1-3",2006,July "S. F. Chichibu,T. Onuma,M. Kubota,A. Uedono,T. Sota,A. Tsukazaki,A. Ohtomo,M. Kawasaki","Improvements in quantum efficiency of excitonic emissions in ZnO epilayers by the elimination of point defects",,"Journal of Applied Physics",,"Vol. 99","No. 9"," 093505-1-6",2006,May "A. Tsukazaki,A. Ohtomo,M. Kawasaki","High-mobility electronic transport in ZnO thin films",,"Applied Physics Letters",,"Vol. 88","No. 15"," 152106-1-3",2006,Apr. "T. Makino,Y. Segawa,A. Tsukazaki,A. Ohtomo,M. Kawasaki","Majority-carrier mobilities in undoped and n-type doped ZnO epitaxial layers",,"Physica Status Solidi C",,"Vol. 3","No. 4","pp. 956-959",2006,Mar. "大友 明,塚崎 敦,川崎 雅司","21世紀を照らす光 ?酸化亜鉛発光ダイオード",,"パリティ",,"Vol. 21","No. 1","p. 24-26",2006,Jan. "A. Ohtomo,A. Tsukazaki,J. Nishimura,M. Kawasaki","Integrated thin film and device libraries based on conducting wide-gap oxides","2005 MRS Fall Meeting",,,,,,2005,Nov. "T. Makino,Y. Segawa,S. Yoshida,A. Tsukazaki,A. Ohtomo,M. Kawasaki,H. Koinuma","Spectral shape analysis of ultraviolet luminescence in n-type ZnO : Ga",,"Journal of Applied Physics",,"Vol. 98","No. 9"," 093520-1-4",2005,Nov. "塚崎 敦,大友 明,川崎 雅司","ZnO青色発光ダイオード",,"応用物理",,"Vol. 74","No. 10","pp. 1359-1364",2005,Oct. "T. Makino,Y. Segawa,S. Yoshida,A. Tsukazaki,A. Ohtomo,M. Kawasaki,H. Koinuma","Free-carrier effects on zero- and one-phonon absorption onsets of n-type ZnO",,"Japanese Journal of Applied Physics Part 1-Regular Papers Brief Communications & Review Papers",,"Vol. 44","No. 10","pp. 7275-7280",2005,Oct. "塚崎 敦,大友 明,川崎 雅司","酸化亜鉛発光ダイオード?結晶品質の向上がもたらした古い材料の新たな応用?",,"セラミックス",,"Vol. 40","No. 9","pp. 749-751",2005,Sept. "T. Makino,Y. Segawa,A. Tsukazaki,A. Ohtomo,M. Kawasaki","Electron transport in ZnO thin films",,"Applied Physics Letters",,"Vol. 87","No. 2"," 022101-1-3",2005,July "川崎 雅司,寺井 恒太,塚崎 敦,大西 剛,大友 明,リップマー ミック","バッファー層による酸化物へテロエピタキシーの格子不整合エンジニアリング",,"日本結晶成長学会誌",,"Vol. 32","No. 2","pp. 74-81",2005,June "A. Tsukazaki,M. Kubota,A. Ohtomo,T. Onuma,K. Ohtani,H. Ohno,S. F. Chichibu,M. Kawasaki","Blue light-emitting diode based on ZnO",,"Japanese Journal of Applied Physics Part 2-Letters & Express Letters",,"Vol. 44","No. 20-23","pp. L643-L645",2005,May "A. Ohtomo,A. Tsukazaki","Pulsed laser deposition of thin films and superlattices based on ZnO",,"Semiconductor Science and Technology",,"Vol. 20","No. 4","pp. S1-S12",2005,Apr. "S. F. Chichibu,A. Uedono,A. Tsukazaki,T. Onuma,A. Ohtomo,A. Kavokin,G. Cantwell,C. W. Litton,T. Sota,M. Kawasaki","Exciton-polariton spectra and limiting factors for the room-temperature photoluminescence efficiency in ZnO",,"Semiconductor Science and Technology",,"Vol. 20","No. 4","pp. S67-S77",2005,Apr. "A. Tsukazaki,A. Ohtomo,T. Onuma,M. Ohtani,T. Makino,M. Sumiya,K. Ohtani,S. F. Chichibu,S. Fuke,Y. Segawa,H. Ohno,H. Koinuma,M. Kawasaki","Repeated temperature modulation epitaxy for p-type doping and light-emitting diode based on ZnO",,"Nature Materials",,"Vol. 4","No. 1","pp. 42-46",2005,Jan. "T. I. Suzuki,A. Ohtomo,A. Tsukazaki,F. Sato,J. Nishii,H. Ohno,M. Kawasaki","Hall and field-effect mobilities of electrons accumulated at a lattice-matched ZnO/ScAIMgO4 heterointerface",,"Advanced Materials",,"Vol. 16","No. 21","pp. 1887-1890",2004,Nov. "T. Makino,Y. Segawa,S. Yoshida,A. Tsukazaki,A. Ohtomo,M. Kawasaki","Gallium concentration dependence of room-temperature near-band-edge luminescence in n-type ZnO : Ga",,"Applied Physics Letters",,"Vol. 85","No. 5","pp. 759-761",2004,Aug. "A. Tsukazaki,A. Ohtomo,M. Kawasaki,T. Makino,C. H. Chia,Y. Segawa,H. Koinuma","Emission from the higher-order excitons in ZnO films grown by laser molecular-beam epitaxy",,"Applied Physics Letters",,"Vol. 84","No. 19","pp. 3858-3860",2004,May "M. Sumiya,A. Tsukazaki,S. Fuke,A. Ohtomo,H. Koinuma,M. Kawasaki","SIMS analysis of ZnO films co-doped with N and Ga by temperature gradient pulsed laser deposition",,"Applied Surface Science",,"Vol. 223","No. 1-3","pp. 206-209",2004,Feb. "A. Tsukazaki,A. Ohtomo,S. Yoshida,M. Kawasaki,C. H. Chia,T. Makino,Y. Segawa,T. Koida,S. F. Chichibu,H. Koinuma","Layer-by-layer growth of high-optical-quality ZnO film on atomically smooth and lattice relaxed ZnO buffer layer",,"Applied Physics Letters",,"Vol. 83","No. 14","pp. 2784-2786",2003,Oct. "M. Sumiya,S. Fuke,A. Tsukazaki,K. Tamura,A. Ohtomo,M. Kawasaki,H. Koinuma","Quantitative control and detection of heterovalent impurities in ZnO thin films grown by pulsed laser deposition",,"Journal of Applied Physics",,"Vol. 93","No. 5","pp. 2562-2569",2003,May "I. Ohkubo,Y. Matsumoto,A. Ohtomo,T. Ohnishi,A. Tsukazaki,M. Lippmaa,H. Koinuma,M. Kawasaki","Investigation of ZnO/sapphire interface and formation of ZnO nanocrystalline by laser MBE",,"Applied Surface Science",,"Vol. 159",,"pp. 514-519",2000,June