論文

• Tomoaki Yamada, Shogo Matsuo, Takafumi Kamo, Hiroshi Funakubo, Masahito Yoshino, Takanori Nagasaki. Experimental study of effect of strain on electrocaloric effect in (001)-epitaxial (Ba,Sr)TiO3 thin films, Japanese Journal of Applied Physics, vol. 56, pp. 10PF15-1-5, Sept. 2017.
• Shogo Matsuo, Tomoaki Yamada, Takafumi Kamo, Hiroshi Funakubo, Masahito Yoshino, Takanori Nagasaki. Indirect measurements of electrocaloric effect in ferroelectric thin films by positive-up-negative-down method, J. Ceram. Soc. Jpn., vol. 125, no. 6, pp. 441-444, June 2017.
• Xuan Shen, Tomoaki Yamada, Ruoqian Lin, Takafumi Kamo, Hiroshi Funakubo, Di Wu, Huolin L. Xin, Dong Su. Interfacial dislocations in (111) oriented (Ba0.7Sr0.3)TiO3 films on SrTiO3 single crystal, Appl. Phys. Lett., Vol. 107, pp. 141605-1-5, Oct. 2015.
• Takashi Fujisawa, Yoshitaka Ehara, Shintaro Yasui, Takafumi Kamo, Tomoaki Yamada, Osami Sakata, Hiroshi Funakubo. Direct Observation of Intrinsic Piezoelectricity of Pb(Zr,Ti)O₃ by Time-resolved X-ray Diffraction Measurement using Single-crystalline Films, Appl. Phys. Lett., vol. 105, No. 1, pp. 012905 1-5, July 2014.
• Tomoaki Yamada, Itaru Takuwa, Takafumi Kamo, Takashi Iijima, Masahito Yoshino, Takanori Nagasaki, Hiroshi Funakubo. Influence of Ba/Sr Ratio in Compressively-Strained (Ba,Sr)TiO3 (001) Films on the Ferroelectric Phase Transition, J. Ceram. Soc. Jpn., Vol. 121, No. 8, pp. 690-692, 2013.
• Takeshi Tai, Masamichi Nishide, Masashi Matsuoka, Takafumi Kamo, Hiroshi Funakubo, Takashi Katoda, Hiromi Shima, Ken Nishida, Takashi Yamamoto. Investigation of Sputtering Damage in SrRuO3 Films Prepared by Sputtering with Raman and X-ray Photoemission Spectroscopies, Jpn. J. App. Phys., Vol. 51, pp. 09LA19-1-4, 2012.
• T. Yamada, T. Kamo, D. Su, T. Iijima, H. Funakubo. Influence of Epitaxial Growth Orientation on Residual Strain and Dielectric Properties of (Ba0.3Sr0.7)TiO3 Films Grown on In-Plane Compressive Substrates, Ferroele., Vol. 405, pp. 262–267, 2010.
• Tomoaki Yamada, Jin Wang, Osami Sakata, Cosmin S. Sandu, Zhanbing He, Takafumi Kamo, Shintaro Yasui, Nava Setter, Hiroshi Funakubo. Synchrotron X-ray Diffraction Study on a Single Nanowire of PX-Phase Lead Titanate, J. Euro. Ceram. Soc., Vol. 30, pp. 3259–3262, 2010.
• Ken Nishida, Minoru Osada, Shintaro Yokoyama, Takafumi Kamo, Takashi Fujisawa, Keisuke Saito, Hiroshi Funakubo, Takashi Katoda, Takashi Yamamoto. Investigation of Oxygen vacancies in Micro-patterned PZT Thin Films using Raman spectroscopy, Key Engineering Materials, Vol. 421-422, pp. 135-138, 2010.
• Shinichi Ito, Tomoaki Yamada, Kenji Takahashi, Shoji Okamoto, Takafumi Kamo, Hiroshi Funakubo, Ivoyl Koutsaroff, Marina Zelner, Andrew Cervin-Lawry. Effect of bottom electrode on dielectric property of sputtered-(Ba,Sr) TiO3 films, J.Appl.Phys., Vol. 105, pp. 061606-1-4, 2009.
• S. Anastasova, M. Milanova, E. Kashchieva, HIROSHI FUNAKUBO, Takafumi Kamo, N. Grozev, P. Stefanov, D. Todorovsky. “Morphology of sol–gel produced composite films for optical oxygen sensors”, Applied Surface Science,, Vol. 254, pp. 1545–1558., 2008.
• Ken Nishida, Minoru Osada, Hironari Takeuchi, Yoshiaki Ishimoto, Joe Sakai, Nobuaki Ito, Rikyu Ikariyama, Takafumi Kamo, Takashi Fujisawa, Hiroshi Funakubo, Takashi Kotoda, Takashi Yamamoto. “Raman Spectroscopy Study of Oxygen Vacancies in PbTiO3 Thin Films Generated Heat-treated in Hydrogen Atmosphere”, Jpn. J. Appl. Phys., Vol. 47, pp. 7510-7513, 2008.
• Takafumi Kamo, Ken Nishida, Kensuke Akiyama, Joe Sakai, Takashi Katoda, Hiroshi Funakubo. “RF Magnetron Sputtering Growth of Epitaxial SrRuO3 Films with High Conductivity”, Jpn. J. Appl. Phys., Vol. 46, No. 10B, pp. 6987-6990., 2007.

国際会議発表 (査読有り)

• Shogo Matsuo, Tomoaki Yamada, Takafumi Kamo, Hiroshi Funakubo, Masahito Yoshino, Takanori Nagasaki. Indirect measurements of electrocaloric effect in (001) (Ba, Sr)TiO3 thin films by positive-up-negative-down method, ICE2017(8th International Conference on Electroceramics), May 2017.
• S. Matsuo, T. Yamada, T. Kamo, H. Funakubo, M. Yoshino, T. Nagasaki. Nonlinear electric field dependence of electrocaloric effect in (001)-epitaxial (Ba, Sr) TiO3 thin films, 2017 Joint IEEE ISAF-IWATMD-PFM Conference, May 2017.
• S. Matsuo, T. Yamada, M. Yoshino, T. Nagasaki, T. Kamo, H. Funakubo. Nonlinear Electric Field Dependence of Electrocaloric Effect in (001)-epitaxial (Ba, Sr) TiO3 Thin Films, Proc. IEEE ISAF-IWATMD-PFM 2017, pp. 68-70, 2017.
• M. Ishikawa, T. Fujisawa, S. Yasui, T. Kamo, M. Hirano, T. Yamada, M. Kurosawa, T. Morita, H. Funakubo. Growth of Epitaxial Potassium Niobate Film on (100)SrRuO3/(100)SrTiO3 by Hydrothermal Method and Their Electromechanical Properties, Proc. 2008 Materials Research Society Fall Meeting, Dec. 2008.

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