Fabrication and Evaluation of One-Axis Oriented Lead Zirconate Titanate Films Using Metal–Oxide Nanosheet Interface Layer

• Yoshiki Minemura

• Kohei Nagasaka

• Takanori Kiguchi

• Toyohiko J. Konno

• Hiroshi Funakubo

• Hiroshi Uchida

抄録

Nanosheet Ca 2 Nb 3 O 20 (ns-CN) layers with pseudo-perovskite-type crystal configuration were applied on the surface of polycrystalline metal substrates to achieve preferential crystal orientation of Pb(Zr,Ti)O 3 (PZT) films for the purpose of enhanced ferroelectricity comparable to that of epitaxial thin films. PZT films with tetragonal symmetry (Zr/Ti=0.40:0.60) were fabricated by chemical solution deposition (CSD) on ns-CN-buffered Inconel 625 and SUS 316L substrates, while ns-CN was applied on the the substrates by dip-coating. The preferential crystal growth on the ns-CN layer can be achieved by favorable lattice matching between (001)/(100)PZT and (001)ns-CN planes. The degree of (001) orientation was increased for PZT films on ns-CN/Inconel 625 and ns-CN/SUS 316L substrates, whereas randomly-oriented PZT films with a lower degree of (001) orientation were grown on bare and Inconel 625 films. Enhanced remanent polarization of 60 µC/cm 2 was confirmed for the PZT films on ns-CN/metal substrates, ascribed to the preferential alignment of the polar [001] axis normal to the substrate surface, although it also suffered from higher coercive field above 500 kV/cm caused by PZT/metal interfacial reaction.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 52 (9S1), 09KA04-, 2013-09-01

  IOP Publishing

キーワード

• General Physics and Astronomy
• General Engineering

詳細情報

• CRID: 1360847874817880192
• NII論文ID: 210000142820
• DOI: 10.7567/jjap.52.09ka04
• ISSN: 13474065
• ISSN: 00214922
• ISSN: http://id.crossref.org/issn/13474065
• Web Site: https://iopscience.iop.org/article/10.7567/JJAP.52.09KA04
• Web Site: https://iopscience.iop.org/article/10.7567/JJAP.52.09KA04/pdf
• データソース種別:
  • Crossref
  • CiNii Articles
  • KAKEN