首页    期刊浏览 2024年11月10日 星期日
登录注册

文章基本信息

  • 标题:Domain wall motion in Pb(Zr0.20Ti0.80)O3 epitaxial thin films
  • 本地全文:下载
  • 作者:C. Borderon ; A. E. Brunier ; K. Nadaud
  • 期刊名称:Scientific Reports
  • 电子版ISSN:2045-2322
  • 出版年度:2017
  • 卷号:7
  • 期号:1
  • DOI:10.1038/s41598-017-03757-y
  • 语种:English
  • 出版社:Springer Nature
  • 摘要:Two Pb(Zr0.20Ti0.80)O3 samples of different thickness and domain configuration have been studied. The c-domain sample was found to have a higher coercive field E c and higher dielectric losses than the other which presents approximately 60% of c-domains and 40% of a-domains as observed by piezo force microscopy (PFM) characterization. Hyperbolic law measurements reveal that the higher coercive field is due to domain wall pinning in deeper defects and hence a higher field E th is required for unpinning. The dissipation factors due to domain wall motion, however, are similar in both samples since the domain wall density is low and there is almost no interaction between domain walls. The higher dielectric losses in the c-domain oriented sample are a result of a greater contribution from the lattice and seem to be due to strain from the substrate, which is not relieved in a thin sample. PFM and dielectric characterization are complementary methods which provide a better understanding of the domain wall motion.
国家哲学社会科学文献中心版权所有