Enhancement of quantum ferroelectricity in SrTi18O3 thin film

Yasuhiro Fujii, Yuki Maeda, Masao Katayama, Hiroki Taniguchi, Hiroshi Takashima, Mitsuru Itoh, Yuji Matsumoto

研究成果: Article査読

4 被引用数 (Scopus)

抄録

We fabricated 18O-exchanged SrTi18O0.03x 16O0.03(100-x) (STO18) thin films on SrTi 16O3(001) single-crystal substrates by pulsed laser deposition from a SrTi18O3 single-crystal target at various growth temperatures and 16O2 partial pressures. The diffusion of 16O from the substrate could be successfully suppressed by growing films under high 16O2 partial pressures, and a homogeneously 18O-exchanged STO18 thin film (x=60) was then obtained. The STO18 film became ferroelectric at a critical temperature higher than that expected from the corresponding STO18 bulk sample by ∼10 K, at which the Raman spectra suggested that the first-order transition occurred, different from the case of the STO18 bulk.

本文言語English
論文番号091501
ジャーナルApplied Physics Express
4
9
DOI
出版ステータスPublished - 2011 9
外部発表はい

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

フィンガープリント 「Enhancement of quantum ferroelectricity in SrTi<sup>18</sup>O<sub>3</sub> thin film」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル