論文

• Jun-ichi Takashiro, Yasuhiko Kudo, Si-Jia Hao, Kazuyuki Takai, Don N. Futaba, Toshiaki Enoki, Manabu Kiguchi. Preferential oxidation-induced etching of zigzag edges in nanographene, PCCP, Vol. 16, 21363-21371, Aug. 2014.
• Y. Kudo, M. Kiguchi*, J. Takashiro, K. Takai, T. Enoki. Development of edge state on graphite surface induced by Ar+ irradiation studied using near-edge X-ray absorption fine structure spectroscopy, Carbon, Vol. 72, pp. 152-159, Feb. 2014.
• Hao. S, V. L. Joly, S. Kaneko, J. Takashiro, K. Takai, H. Hayashi, T. Enoki, M. Kiguchi. Magnetic Edge-state in Nanographene, HNO3-Doped Nanographene and Its Residue Compounds of Nanographene-based Nanoporous Carbon, Physical chemistry, chemical physics : PCCP, Royal society of chemistry, Vol. 16, No. 13, pp. 6273-6282, Feb. 2014.
• Jun-ichi Takashiro, Yasuhiko Kudo, Satoshi Kaneko, Kazuyuki Takai, Takafumi Ishii, Takashi Kyotani, Toshiaki Enoki, Manabu Kiguchi. Heat treatment effect on the electronic and magnetic structures of nanographene sheets investigated through electron spectroscopy and conductance measurements, Phys. Chem. Chem. Phys., 2014, No. 16, pp. 7280-7289, Feb. 2014.
• Yoshikazu Ito, K. Takai, Akira Miyazaki, V. Sivamurugan, M. Kiguchi, Y. Ogawa, N. Nakamura, S. Valiyaveettil, T. Tada, S. Watanabe, T. Enoki. Anomalous metallic-like transport of Co-Pd ferromagnetic nanoparticles cross-linked with π-conjugated molecules having a rotational degree of freedom, PCCP, Vol. 16, 288-296, Oct. 2013.
• Kaori Sugii, Kazuyuki Takai, Shinya Uji, Taichi Terashima, Hiroki Akutsu, Atsushi Wada, Shun Ichikawa, Jun-ichi Yamada, Takehiko Mori, Toshiaki Enoki. Crystal Structure and Physical Properties of p-d System k-(BDH-TTP)2FeBr4, J. Phys. Soc. Jpn., Vol. 82, No. 4, pp. 054706, Apr. 2013.  公式リンク  
  
• Si-Jia Hao, Kazuyuki Takai, V. L. Joseph Joly, Kazumichi Yokota, Manabu Kiguchi, Toshiaki Enoki. Magnetic Properties and Interplay between Nanographene Host and Nitric Acid Guest in Nanographene-Based Carbon, Bull. Chem. Soc. Jpn., Vol. 85, pp. 376-388, Oct. 2012.
• 榎敏明, 酒井 謙一, 高井 和之, 福井 賢一. Honeycomb Superperiodic Pattern and its Fine Structure near the Armchair Edge of Graphene observed by Low-temperature Scanning Tunneling Microscopy, Phys. Rev. B, Vol. 81, No. 23, pp. 235417(1-7), July 2012.
• S. Hao, K. Takai, V. L. J. Joly, T. Enoki. Magnetism of HNO3-Adsorbed Nanoporous Network of Nanographene Sheets, J. Phys. Chem. Solids, July 2012.
• T. Enoki, K. Takai, M. Kiguchi. Magnetic Edge State of Nanographene and Unconventional Nanographene-Based Host-Guest Systems, Bull. Chem. Soc. Jpn., Vol. 85, 249-264, July 2012.
• T. Enoki, K. Takai. Nanographene-Based Host-Guest Systems, J. Phys. Chem. Solids, Vol. 73, No. 12, pp. 1408-1413, July 2012.
• K. Takai, T. Suzuki, H. Nishihara, T. Kyotani, T. Enoki. Magnetic Properties of Host-Guest Material Using Network of Curved Nanocarbon Sheet, J. Phys. Chem. Solids, Elsevier, Vol. 73, No. 12, pp. 1436-1439, July 2012.
• Yoshiaki Sato, kazuyuki Takai, Toshiaki Enoki. Electrically Controlled Adsorption of oxygen in bilayer Graphene Devices, Nano Lett., ACS Publications, Vol. 11, No. 8, pp. 3468–3475, July 2011.
• Manabu Kiguchi, K. Takai, V. L. J. Joly, T. Enoki, R. Sumii, K. Amemiya. Magnetic edge state and dangling bond state of nanographene in activated carbon fibers, Phys. Rev. B, Vol. 84, pp. 045421(1-6), July 2011.
• K. Yokota, K. Takai, T. Enoki. Carrier Control of Graphene Driven by the Proximity Effect of Functionalized Self-assembled Monolayers, NanoLett., Vol. 11, No. 9, pp. 3468-3475, July 2011.
• V. Yu. Osipov, T. L. Makarova, A. V. Baranov, V. I. Ermakov, L. F. Chungong, A. I. Shames, K. Takai, T. Enoki, Y. Kaburagi, M. Endo, A.Ya. Vul'. Diagnostics of Plasmon Resonance in Optical Absorption Spectra of Nanographite Aqueous Suspensions, Optics and Spectroscopy, Vol. 111, pp. 220-223, July 2011.
• Yoshikazu Ito, K. Takai, T. Enoki. Ferromagnetic Enhancement in the Clusters of Co-Pd Magnetic Nanoparticles Induced by the Formation of Cross-Linkage, J. Phys. Chem. C, Vol. 115, No. 18, pp. 8971-8975, Apr. 2011.
• M. Hagiwara, H. Tsugeno, H. Yamaguchi, V. L. J. Joly, K. Takai, T. Enoki. ESR in a disordered network of nanographene sheets, J. Phys. Conf. Series, Vol. 334, pp. 012040(1-5), 2011.
• V. Yu. Osipov, A. V. Baranov, V. A. Ermakov, T. L. Makarova, L. F. Chungong, A. I. Shames, K. Takai, T. Enoki, Y. Kaburagi, M. Endo, Y. A. Vul’. Raman characterization and UV optical absorption studies of surface plasmon resonance in multishell nanographite, Diamond and Related Materials, Vol. 20, No. 2, pp. 205-209, Dec. 2010.
• K. Takahara, S. Hao, H. Tanaka, Takeshi Kadono, Michikazu Hara, K. Takai, T. Enoki. Mechanical compression induced short-range ordering of nanographene spins, Phys. Rev. B, Vol. 82, pp. 121417(R) (1-4), Sept. 2010.  公式リンク  
  
• G. U. Sumanasekera, G. Chen, K. Takai, J. Joly, N. Kobayashi, T.Enoki, P. C. Eklund. Charge transfer and weak chemisorption of oxygen molecules in nanographene-network-based nanoporous carbon, J. Phys.: Condens. Matter, Vol. 22, No. 33, pp. 334208-1-8, Aug. 2010.
• A. Shames, A. M. Panich, V. Osipov, A. Aleksenskiy, A. Vul', T. Enoki, K. Takai, Kazuyuki Takai. Structure and Magnetic Properties of Detonation Nanodiamond Chemically Modified by Copper, J. Appl. Phys., Vol. 107, pp. 014318(1-10), July 2010.
• K. Takai, T. Suzuki, T. Enoki, H. Nishihara, T. Kyotani. Fabrication and characterization of Magnetic Nanoporous Zeolite Templated Carbon, J. Phys. Chem. Solids, Vol. 71, pp. 565-568, July 2010.
• K. Takai, Y. Nishimura, T. Enoki. Anomalous Magnetotransport in Nanostructured graphene, Physica E, Vol. 42, pp. 680-683, July 2010.
• V. L. J. Joly, K. Takai, T. Enoki. Oxygen guest molecules in the nanopores of nanographite-network, J. Phys. Chem. Solids, Vol. 71, pp. 575-578, July 2010.
• K. Takahara, S. Hao, H. Tanaka, T. Kadono, M. Hara, K. Takai, T. Enoki. Mechanical compression induced short-range ordering of nanographene spins, Phys. Rev. B, Vol. 82, pp. 121417R, July 2010.
• 榎 敏明, V. L. Joseph Joly, 木口 学, 高井和之. ナノグラフェン、グラフェン端の電子構造と磁性, 固体物理, Vol. 45, pp. 589-597, July 2010.
• joly-vazhappilly-lona joseph, Manabu Kiguchi, SIJIA HAO, Kazuyuki Takai, Toshiaki Enoki, Ryohei Sumii, Kenta Amemiya, Hiroyuki Muramatsu, Takuya Hayashi. Observation of Magnetic Edge-State in Graphene Nanoribbon, Phys. Rev. B, APS, Vol. 81, pp. 245428, June 2010.
• Kazuyuki Takai, Tsuyoshi Suzuki, Toshiaki Enoki. Structure and magnetic properties of the curved graphene network and the effects of bromine and potassium adsorption, Phys. Rev. B, Vol. 81, No. 20, pp. 205420-1-12, May 2010.
• V. L. Joseph Joly, Katsunori Takahara, Kazuyuki Takai, Ko Sugihara, M. Koshino, H. Tanaka, Toshiaki Enoki. Effect of electron localization on a edge-state spins in a disordered network of nanographene sheets, Phys. Rev. B, Vol. 81, No. 11, pp. 115408-1-5, Mar. 2010.
• V. L. J. Joly, K. Takahara, K. Takai, K. Sugihara, T. Enoki, M. Koshino, H. Tanaka. Effect of electron localization on the edge-state spins in a disordered network of nanographene sheets, Physical Review B, 81, 115408, Mar. 2010.
• Xing Liao, X. Zhang, K. Takai, T. Enoki. Electric field induced sp3 -to-sp2 conversion and nonlinear electron transport in iron-doped diamond-like-carbon film, J. Appl. Phys., Vol. 107, No. 1, pp. 013709-1-7, Jan. 2010.
• Toshiaki Enoki, S. Tsuge, S.Hao, Kazuyuki Takai, Kiyotaka Nakajima, Michikazu Hara, F.Y.Kang. Magnetism of Nanographene Network Influenced by the Interaction with Acid Species, Journal of Physics and Chemistry of Solid, Vol. 71, pp. 534, Nov. 2009.
• Ken-ichi Sasaki, Riichiro Saito, M. S. Dresselhaus, Shuichi Murakami, Kazuyuki Takai, Takanori Mori, Toshiaki Enoki. Kohn Anomalies in Graphene Nanoribbons, Phys. Rev. B, The American Physical Society, Vol. 80, pp. 1249-1254, Oct. 2009.
• 高井和之, 榎敏明. ナノグラフェンの電子物性と化学修飾による制御, 熱測定, Vol. 36, No. 3, pp. 173-180, July 2009.
• Toshiaki Enoki, Kazuyuki Takai, Vladimir Osipov, Marina Baidakova, Alexander Vul’. Nanographene and Nanodiamond; New Members in the Nanocarbon Family, Chemistry-An Asian Journal 2009, Wiley-VCH, Vol. 4, No. 6, p. 798-804, Apr. 2009.
• Toshiaki Enoki, Kazuyuki Takai. Unconventional electronic and magnetic functions of nanographene-based host–guest systems, Dalton Transactions 2008, RSC Publishing, No. 29, p. 3773-3781, 2008.
• Kazuyuki Takai, Souichirou Eto, Masayasu Inaguma, Toshiaki Enoki, Hironori Ogata, Masatoshi Tokita, Junji Watanabe. Magnetic Potassium Clusters in the Nanographite Host System, Phys. Rev. Lett., Vol. 98, No. 1, p. 017203-1-4, Jan. 2007.
• Katsunori Takahara, Kazuyuki Takai, Toshiaki Enoki, Ko Sugihara. Effect of oxygen adsorption on the magnetoresistance of a disordered nanographite network, Phys. Rev. B, Vol. 76, No. 3, p. 0354422-1-9, 2007.
• Ko Sugihara, Katsunori Takahara, Kazuyuki Takai, Toshiaki Enoki. Host-guest interaction effect on electron transport in disordered network of nanogpaphite domains, Phy. Rev. B, Vol. 75, No. 20, p. 205422-1-8, 2007.
• Vladimir Yu. Osipov, A. I. Shames, Toshiaki Enoki, Kazuyuki Takai, Marina Baidakova, Alexander Ya. Vul'. Paramagnetic defects and exchange coupled spins in pristine ultrananocrystalline diamonds, Diamond & Related Materials, Vol. 16, No. 12, p. 2035-2038, 2007.
• Kazuyuki Takai, Toshiaki Enoki. Fabrication of Graphitic Nanowire Structure by Electron Beam Lithography, Physica E, Elsevire, Vol. 40, No. 2, p. 321-323, 2007.
• Toshiaki Enoki, Yousuke Kobayashi, Chika Katsuyama, Vladimir Yu. Osipov, Marina V. Baidakova, Kazuyuki Takai, Ken-ichi Fukui, Alexander Ya. Vul'. Structures and electronic properties of surface/edges of nanodiamond and nanographite, Diamond & Related Materials, Vol. 16, No. 12, pp. 2029-2034, 2007.
• V. Yu. Osipov, T. Enoki, K. Takai, A. Ya. Vul’. Kinetics of diamond to graphite transformation studied by means of continuous magnetic susceptibility measurements, Proceedings of the Joint International Conference “Nanocarbon & Nanodiamond 2006”, pp. 110, Dec. 2006.
• V. Yu. Osipov, M. Baidakova, K. Takai, T Enoki, A. Vul'. Magnetic properties of hydrogen-terminated surface layer of diamond nanoparticles, Fullerenes, Nanotubes, and Carbon Nanostructures, Vol. 14, pp. 565-572, July 2006.
• L. G. Cancado, K. Takai, T. Enoki, M. Endo, Y. A. Kim, H. Mizusaki, A. Jorio, L. N. Coelho, R. M. Paniago, M. A. Pimenta. General equation for the determination of the crystallite size La of nanographite by Raman spectroscopy, Appl. Phys. Lett., Vol. 88, pp. 163106(1-3), July 2006.
• Kazuyuki Takai, Hokuto Kumagai, Hirohiko Sato, Toshiaki Enoki. Bromine-adsorption-induced change in the electronic and magnetic properties of nanographite network systems, Phys. Rev. B, Vol. 73, pp. 035435, Jan. 2006.
• Vladimir Yu Osipov, Toshiaki. Enoki, Kazuyuki Takai, Katsunori Takahara, Morinobu Endo, Tetsuya Hayashi, Yoshihiro Hishiyama, Yutaka Kaburagi. Magnetic and high resolution TEM studies of nanographite derived from nanodiamond, Carbon, Vol. 44, No. 7, pp. 1225, 2006.
• Y. Kobayashi, K. Takai, K. Fukui, T. Enoki, K. Harigaya, Y. Kaburagi, Y. Hishiyama. STM Observation of Electronic Wave Interference Effect in Finite-Sized Graphite with Distortion-Network Structures, Phys. Rev. B, Vol. 69, pp. 035418(1-7), July 2004.
• . Kobayashi, K. Takai, K. Fukui, T. Enoki, K. Harigaya, Y. Kaburagi, Y. Hishiyama. STM observation of the quantum interference effect in finite-sized graphite, J. Phys. Chem. Solid, Vol. 65, pp. 199-203, July 2004.
• E. P. Sajitha E. P, V.Prasad, S. V. Subramanyam, S. Eto, K. Takai, T. Enoki. Synthesis and characteristics of iron nanoparticles in a carbon matrix along with the catalytic graphitization of amorphous carbon, Carbon, pp. 2815-2820, July 2004.
• K. Harigaya, Y. Kobayashi, N. Kawatsu, K. Takai, H. Sato, J. Ravier, T. Enoki, M. Endo. Turning Magenetism and Novel Electronic Wave Interference Patterns in Nanographite materials, Physica E, Vol. 22, pp. 708-711, July 2004.
• T. Enoki, Y. Yokota, R. Yuge, W. Tu, A. Miyazaki, K. Takai, K. Fukui. Development of TTF-based self-assembled monolayer systems and their electronic properties, J. Physique IV, Vol. 114, pp. 667-671, July 2004.
• K. Harigaya, A. Yamashiro, Y. Shiomi, K. Wakabayashi, Y. Kobayashi, N. Kawatsu, K. Takai, H. Sato, J. Ravier, T. Enoki, M. Endo. Theoretical Study on Novel Elecronic Properties in Nanographite Materials, J. Phys. Chem. Solid., Vol. 65, pp. 123-126, July 2004.
• K.Takai, M.Oga, T.Enoki, A. Taomoto. Effect of Heat-Treatment on Magnetic Properties of Non-Graphitic Disordered Carbon, Diamond and Related Materials, Vol. 13, pp. 1469, 2004.
• L. G. Cancad, M. A. Pimenta, B. R. A. Neves, G. Medeiros, T. Enoki, Y. Kobayashi, K. Takai, K. Fukui, M. S. Dresselhaus, R. Saito, A. Jolio. Anisotropy of the Raman Spectra of Nanographite Ribbons, Phys. Rev. Lett., Vol. 93, pp. 047403, 2004.
• Kumari, Latha; Subramanyam, S. V.; Eto, S.; Takai, K.; Enoki. Metal-insulator transition in iodinated amorphous conducting carbon films, Vol. 41, pp. 2133, 2004.
• K. Takai, M. Oga, H. Sato, T. Enoki, Y. Ohki, A. Taomoto, K. Suenaga, S. Iijima. Structure and Electronic Properties of Non-Graphitic Disordered Carbon System and its Heat-Treatment Effect, Phy. Rev. B, Vol. 67, pp. 214202, 2003.
• Kazuyuki Takai. Interface Effect othe Electronic Structure of Alkanethiol-coated Platimum Nanoparticles, Phys.Chem. B, Vol. 107, pp. 10134, 2003.
• Kazuyuki Takai. Structure and Electronic Properties of sp2/ sp3 Mixed Nano-Carbon Systems, Mol. Cryst. Liq. Cryst., Vol. 3866, pp. 145, 2002.
• Kazuyuki Takai. Novel Electronic Wave Interference Patterns in Nanographen Sheets, J. Phys,: Condensed Matters, Vol. 14, pp. L605, 2002.
• K. Takai, M. Oga, H. Sato, T. Enoki, Y. Ohki, A. Taomoto, K. Suenaga, S. Iijima. Structure and Electronic Properties of Diamond-Like Carbon and its Heat-Treatment Effect, Mat, Res. Soc. Proc., Electrically Based Microstructural Characterization III, Vol. 699, pp. 347, 2002.
• K. Takai, H. Sato, T. Enoki, N. Yoshida, F. Okino, H. Touhara, M. Endo. Effect of fluorination on nano-sized π-electron systems, J. Phys. Soc. Jpn., Vol. 70, pp. 175, 2001.
• Kazuyuki Takai. Host-Guest Systems in Microporous Carbons, Mater. Res. Soc. Symp. Proc., Solid State Ionics V, Vol. 548, pp. 3, 2000.
• Kazuyuki Takai. Fluorine-introduced sp³-carbon sites in a nano-sized π-electron system and their effects on the electronic properties, Mol. Cryst. Liq. Cryst., Vol. 340, pp. 289, 2000.

著書

• 尾上順, 大澤映二, 松尾豊, 高井和之, 榎敏明, 石橋幸治, 本間芳和. ナノ炭素材料：基礎と応用 「グラフェン」, 近代科学社, July 2012.
• 市村 禎二郎, 藤本 善徳, 小松 隆之, 鈴木 正, 原 典行, 松下 慶寿, 小澤 健一, 工藤 史貴, 高井 和之, 水上 真由美, 追中 寛, 岩井 敦子. 理工系大学 基礎化学実験 第3版, 講談社サイエンティフィク, Nov. 2008.
• 榎敏明, 高井和之. ナノグラファイトとそのホスト-ゲスト系の物性, 炭素材料の新展開, 日本学術振興会炭素材料第117委員会, Mar. 2008.
• Toshiaki Enoki, Kazuyuki Takai. Carbon Based Magnetism, Elsevier, 2006.
• Kazuyuki Takai. Magnetism of Nano-graphite, Carbon Alloys, Carbon Alloys, 2001.

国際会議発表 (査読有り)

• V. Yu. Osipov, Toshiaki Enoki, A.I. Shames, K. Takai, M. Endo, Y. Kaburagi, A.Ya. Vul'. Intercalation between edge-localized spins and molecular oxygen in multishell nanographites derived from nanodiamonds, Diamond and Related Materials, Vol. 19, No. 5-6, 492-495, May 2010.
• Kazuyuki Takai, Souichiro Eto, Masayasu Inaguma, Toshiaki Enoki. Magnetic potassium clusters in the nanographite-based nanoporous system, Journal of Physics and Chemistry of Solids, Elsevier, Vol. 69, p. 1182-1184, May 2009.
• Ruitao Lv, Shinji Tsuge, Xuchun Gui, Kazuyuki Takai, Feiyu Kang, Toshiaki Enoki, Jinquan Wei, Jialin Gu, Kunlin Wang, Dehai Wu. In situ synthesis and magnetic anisotropy of ferromagnetic buckypaper, Carbon, Vol. 47, No. 4, pp. 1141-1145, Apr. 2009.
• V. Yu. Ossipov, A. I. Shames, T. Enoki, K. Takai, M. Endo, T. Hayashi, Y. Kaburagi, A. Y. Vul’. Magnetic and EPR Studies of Edge-Localized Spin Paranagnetism in Multi-shell Nanographites Derived from Nanodiamonds, Diamond and Related Materials, Vol. 18, No. 2-3, pp. 220-223, Feb. 2009.
• Ko Sugihara, Katsunori Takahara, Kazuyuki Takai, Toshiaki Enoki. Magnetotransport of nanoporous nanographite domain network and its oxygen-adsorption effect, Journal of Physics and Chemistry of Solids, Elsevier, Vol. 69, p. 1155-1157, May 2008.
• Sijia Hao, Kazuyuki Takai, Feiyu Kang, Toshiaki Enoki. Electronic and magnetic properties of acid-adsorbed nanoporous activated carbon fibers, Carbon, Vol. 46, No. 1, p. 110-116, 2008.
• L.G. Cançadoa, K. Takai, T. Enoki, M. Endo, Y.A. Kim, H. Mizusaki, N.L. Speziali, A. Jorio, M.A. Pimenta. Measuring the degree of stacking order in graphite by Raman spectroscopy, Carbon, Elsevier, Vol. 46, No. 2, pp. 272-275, Nov. 2007.
• Kazuyuki Takai, Souichiro Eto, Masayasu Inaguma, Toshiaki Enoki. Magnetic potassium clusters in the nanographite-based nanoporous system, Journal of Physics and Chemistry of Solids, Vol. 69, pp. 1182 –1184, Oct. 2007.

その他の論文・著書など

• Toshiaki Enoki, Kazuyuki Takai. The edge state of nanographene and the magnetism of the edge-state spins, Solid State Communications, Elsevier, Vol. 149, No. 27-28, pp. 1144-1150, July 2009.
• 榎敏明, 高井和之. ナノグラフェンの磁性と伝導, ニューダイヤモンド 92, 株式会社 オーム社, Vol. 25, No. 1, p. 8-15, Jan. 2009.

学位論文

• Structure and Electronic Properties of sp² / sp³-Mixed Carbon Systems,  本文,  Doctor of Science,  東京工業大学大学院,  2001/--/--, 

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