Structure and polarization in epitaxial ferroelectric PbZr0.52Ti0.48O3/YBa2Cu 3O7-x/Nd:YAlO3 thin films

A. M. Grishin, M. Yamazato, Y. Yamagata, K. Ebihara

研究成果: Contribution to journalArticle査読

25 被引用数 (Scopus)

抄録

We fabricate epitaxial PbZr0.52Ti0.48O3/YBa2Cu 3O7-x submicron film ferroelectric/superconductor heterostructures on the single-crystal YAlO3+1%Nd2O3 substrate by the pulsed laser deposition technique. Frequency independent low loss tanδ=0.04 and dielectric constant of 950, high electric resistivity ρ (150kV/cm)=6×1011cm, remnant polarization of 32μC/cm2, no visible fatigue after 107 short bipolar pulses switching indicate excellent electrical performance of the new capacitor structure. The slight crystallite polar axis misalignment and depolarizing effect were found to be responsible for the shape of the apparent polarization loop. The only fitting parameter depolarizing coefficient N=2.37×10-4 gives the best fit between theory and experimental data and corresponds to prolate ellipsoidal shaped crystallites with the length-to-diameter ratio of 140.

本文言語英語
ページ(範囲)620-622
ページ数3
ジャーナルApplied Physics Letters
72
5
DOI
出版ステータス出版済み - 1998
外部発表はい

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

フィンガープリント 「Structure and polarization in epitaxial ferroelectric PbZr<sub>0.52</sub>Ti<sub>0.48</sub>O<sub>3</sub>/YBa<sub>2</sub>Cu <sub>3</sub>O<sub>7-x</sub>/Nd:YAlO<sub>3</sub> thin films」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。

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