@article{fa7df674ff444e5386796d60d56aa063,
title = "Large impact of strain on the electro-optic effect in (Ba, Sr)TiO3 thin films: Experiment and theoretical comparison",
abstract = "(001)-epitaxial (Ba0.5Sr0.5)TiO3 (BST) thin films with different magnitudes of compressive strain were fabricated on SrRuO3/SrTiO3 substrates by pulsed laser deposition, and their electro-optic (EO) properties were characterized by modulation ellipsometry at different temperatures. All fabricated films showed an increased paraelectric-to-ferroelectric phase transition temperature upon compressive strain and revealed c-domain structures in the ferroelectric phase. We experimentally clarified that the EO properties of compressively strained BST thin films are enhanced toward the phase transition temperature modified by the strain. The experimental results were compared with the theoretical prediction based on a phenomenological thermodynamic model. Although the measured EO coefficient r c was less than that theoretically predicted, the experimentally observed strain effect on the EO properties is in good qualitative agreement.",
author = "Shinya Kondo and Tomoaki Yamada and Tagantsev, {Alexander K.} and Ping Ma and Juerg Leuthold and Paolo Martelli and Pierpaolo Boffi and Mario Martinelli and Masahito Yoshino and Takanori Nagasaki",
note = "Funding Information: This work was partly supported by the Concert-Japan Project {"}FF-Photon{"} funded by the Japan Science and Technology Agency and the EC FP7th and by JSPS KAKENHI Grant No. 19J12654. We gratefully acknowledge Dr. James W. Quilty from the Victoria University of Wellington for all useful technical discussions on EO measurements, Professor Kazuo Shinozaki and Professor Tadashi Shiota from the Tokyo Institute of Technology, and Professor Naoki Wakiya and Professor Hisao Suzuki from the Shizuoka University for useful discussions on film depositions. Funding Information: This work was partly supported by the Concert-Japan Project “FF-Photon” funded by the Japan Science and Technology Agency and the EC FP7th and by JSPS KAKENHI Grant No. 19J12654. We gratefully acknowledge Dr. James W. Quilty from the Victoria University of Wellington for all useful technical discussions on EO measurements, Professor Kazuo Shinozaki and Professor Tadashi Shiota from the Tokyo Institute of Technology, and Professor Naoki Wakiya and Professor Hisao Suzuki from the Shizuoka University for useful discussions on film depositions. Publisher Copyright: {\textcopyright} 2019 Author(s).",
year = "2019",
month = aug,
day = "26",
doi = "10.1063/1.5117218",
language = "English",
volume = "115",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "9",
}