Energy Functional Materials Engineering Laboratory

Tomoaki YAMADA won the Best Young Researcher Presentation Awards of the 33th Meeting on Ferroelectric Materials and Their Applications (FMA33) held in Kyoto, Japan for his presentation “Influence of Charge Screening at Interface of Tetragonal/Rhombohedral Pb(Zr_xTi_1-x)O₃ Artificial Superlattice Thin Films on the Piezoelectric Property”.

Our paper entitled “Ab initio study on face azimuth dependency of surface energy and structure in PbTiO₃” has been published in Ferroelectrics. The surface energy and equilibrium crystal morphology sensitively change with the growth conditions.

Citation: Ferroelectrics 490, 167-173 (2016)

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Our paper entitled “Domain structure of tetragonal Pb(Zr,Ti)O₃ nanorods and its size dependence” has been published in Jpn. J. Appl. Phys. The domain structure significantly changes with the nanorod width.

Citation: Jpn. J. Appl. Phys. 54, 10NA07 (2015)

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Our paper entitled “Negligible substrate clamping effect on piezoelectric response in (111)-epitaxial tetragonal Pb(Zr, Ti)O₃ films” has been published in J. Appl. Phys. The 3D-plot of time-resolved synchrotron XRD was incorporated into the cover image (bottom left).

Citation: J. Appl. Phys. 118, 072012 (2015)

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Our paper entitled “Phase transitions associated with competing order parameters in compressively strained SrTiO₃ thin films” has been published in Phys. Rev. B. This work has been in collaboration with Victoria University of Wellington (New Zealand), EPFL (Switzerland), Ioffe Physical Technical Institute (Russia), National Institute for Materials Science (Japan), Tokyo Institute of Technology (Japan) and Bruker AXS (Japan).

Citation: Phys. Rev. B 91, 214101 (2015)

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Daisuke ITO won the Best Poster Award in Student Poster Competition of 2015 Joint IEEE International Symposium on Applications of Ferroelectric, International Symposium on Integrated Functionalities, and Piezoresponse Force Microscopy Workshop (IEEE ISAF-ISIF-PFM 2015) held in Singapore for his poster “Fabrication of Tetragonal Pb(Zr,Ti)O₃ Nanorods by Focused Ion Beam and Characterization of the Domain Structure”.

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Our paper entitled “Suppressed polar distortion with enhanced Curie temperature in in-plane 90º-domain structure of a-axis oriented PbTiO₃ film” has been published in Appl. Phys. Lett. This work has been in collaboration with Tokyo Institute of Technology (Japan), Bruker AXS (Japan), EPFL (Switzerland) and Ioffe Physical Technical Institute (Russia).

Citation: Appl. Phys. Lett. 106, 042905 (2015)

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Our joint research project, Functional Thin-Film Ferroelectric Materials for CMOS Compatible Photonics (FF-Photon), in collaboration with ETH Zürich (Switzerland), Polytechnic University of Milan (Italy), Tokyo Institute of Technology (Japan) and Shizuoka University (Japan) has begun.

On Nov. 14, Dr. Ping Ma (Swiss Federal Institute of Technology, Zürich – ETHZ, Institute of Electromagnetic Fields) visited us and lectured on ferroelectric EO devices.

Lecturer	Seminar title
Dr. Ping Ma (Swiss Federal Institute of Technology, Zürich – ETHZ)	Thin-film ferroelectric materials for Si electro-optic devices

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Yoshinori TANAKA won the Poster Award of the 6th China-Japan Symposium on Ferroelectric Materials and Their Applications held in Yamanashi, Japan for his poster “In-situ Analysis of Strain Influence on Dielectric Constant of (Ba,Sr)TiO₃ Films with Different Orientations”.

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