論文

2019年8月

Large impact of strain on the electro-optic effect in (Ba, Sr)TiO3 thin films: Experiment and theoretical comparison

APPLIED PHYSICS LETTERS
  • Shinya Kondo
  • ,
  • Tomoaki Yamada
  • ,
  • Alexander K. Tagantsev
  • ,
  • Ping Ma
  • ,
  • Juerg Leuthold
  • ,
  • Paolo Martelli
  • ,
  • Pierpaolo Boffi
  • ,
  • Mario Martinelli
  • ,
  • Masahito Yoshino
  • ,
  • Takanori Nagasaki

115
9
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1063/1.5117218
出版者・発行元
AMER INST PHYSICS

(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. Published under license by AIP Publishing.

Web of Science ® 被引用回数 : 3

リンク情報
DOI
https://doi.org/10.1063/1.5117218
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000483884100043&DestApp=WOS_CPL

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