Epitaxial PbTiO3 thin films on SrTiO3(100) and SrRuO3/SrTiO3(100) substrates deposited by a hydrothermal method

Takeshi Morita; Yasuo Cho

doi:10.1143/JJAP.43.6535

Epitaxial PbTiO₃ thin films on SrTiO₃(100) and SrRuO₃/SrTiO₃(100) substrates deposited by a hydrothermal method

Takeshi Morita, Yasuo Cho

New Industry Creation Hatchery Center (NICHe)

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

Lead titanate (PbTiO₃) thin film is a promising material for ultrahigh-density ferroelectric data storage systems, pyroelectric sensors and ferroelectric optical devices. In this study, high-quality epitaxial PbTiO ₃ thin films were deposited on SrTiO₃(100) and SrRuO ₃/SrTiO₃(100) by a hydrothermal method. The crystal orientation of the deposited film was investigated with a high-resolution X-ray diffraction mapping system. The full width at half maximum (FWHM) of the rocking curve of the (002) PbTiO₃ film on SrTiO₃ was 0.060°. The reciprocal space mappings of (103) verified that the PbTiO ₃ films had perfect c-axis orientation. The self-aligned polarizaton was confirmed with observation using a scanning nonlinear dielectric microscope. The PbTiO₃ on SrRuCO₃/SrTiO₃(100) was used for the D-E hysteresis curve measurement and the remanent polarization was 96.5μC/cm². Domain patterning was applied to a 50-nm-thick PbTiO₃ film using a conductive cantilever probe. The minimum radius of the nano domain dot was 12nm, corresponding to a data density of 1 Tbit/inch².

Original language	English
Pages (from-to)	6535-6538
Number of pages	4
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	43
Issue number	9 B
DOIs	https://doi.org/10.1143/JJAP.43.6535
Publication status	Published - 2004 Sept

Keywords

Epitaxial thin film
Hydrothermal method
Lead titanate
Scanning nonlinear dielectric microscope
Ultra-high density ferroelectric data storage

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/JJAP.43.6535

Cite this

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title = "Epitaxial PbTiO3 thin films on SrTiO3(100) and SrRuO3/SrTiO3(100) substrates deposited by a hydrothermal method",

abstract = "Lead titanate (PbTiO3) thin film is a promising material for ultrahigh-density ferroelectric data storage systems, pyroelectric sensors and ferroelectric optical devices. In this study, high-quality epitaxial PbTiO 3 thin films were deposited on SrTiO3(100) and SrRuO 3/SrTiO3(100) by a hydrothermal method. The crystal orientation of the deposited film was investigated with a high-resolution X-ray diffraction mapping system. The full width at half maximum (FWHM) of the rocking curve of the (002) PbTiO3 film on SrTiO3 was 0.060°. The reciprocal space mappings of (103) verified that the PbTiO 3 films had perfect c-axis orientation. The self-aligned polarizaton was confirmed with observation using a scanning nonlinear dielectric microscope. The PbTiO3 on SrRuCO3/SrTiO3(100) was used for the D-E hysteresis curve measurement and the remanent polarization was 96.5μC/cm2. Domain patterning was applied to a 50-nm-thick PbTiO3 film using a conductive cantilever probe. The minimum radius of the nano domain dot was 12nm, corresponding to a data density of 1 Tbit/inch2.",

keywords = "Epitaxial thin film, Hydrothermal method, Lead titanate, Scanning nonlinear dielectric microscope, Ultra-high density ferroelectric data storage",

author = "Takeshi Morita and Yasuo Cho",

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AU - Morita, Takeshi

AU - Cho, Yasuo

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N2 - Lead titanate (PbTiO3) thin film is a promising material for ultrahigh-density ferroelectric data storage systems, pyroelectric sensors and ferroelectric optical devices. In this study, high-quality epitaxial PbTiO 3 thin films were deposited on SrTiO3(100) and SrRuO 3/SrTiO3(100) by a hydrothermal method. The crystal orientation of the deposited film was investigated with a high-resolution X-ray diffraction mapping system. The full width at half maximum (FWHM) of the rocking curve of the (002) PbTiO3 film on SrTiO3 was 0.060°. The reciprocal space mappings of (103) verified that the PbTiO 3 films had perfect c-axis orientation. The self-aligned polarizaton was confirmed with observation using a scanning nonlinear dielectric microscope. The PbTiO3 on SrRuCO3/SrTiO3(100) was used for the D-E hysteresis curve measurement and the remanent polarization was 96.5μC/cm2. Domain patterning was applied to a 50-nm-thick PbTiO3 film using a conductive cantilever probe. The minimum radius of the nano domain dot was 12nm, corresponding to a data density of 1 Tbit/inch2.

AB - Lead titanate (PbTiO3) thin film is a promising material for ultrahigh-density ferroelectric data storage systems, pyroelectric sensors and ferroelectric optical devices. In this study, high-quality epitaxial PbTiO 3 thin films were deposited on SrTiO3(100) and SrRuO 3/SrTiO3(100) by a hydrothermal method. The crystal orientation of the deposited film was investigated with a high-resolution X-ray diffraction mapping system. The full width at half maximum (FWHM) of the rocking curve of the (002) PbTiO3 film on SrTiO3 was 0.060°. The reciprocal space mappings of (103) verified that the PbTiO 3 films had perfect c-axis orientation. The self-aligned polarizaton was confirmed with observation using a scanning nonlinear dielectric microscope. The PbTiO3 on SrRuCO3/SrTiO3(100) was used for the D-E hysteresis curve measurement and the remanent polarization was 96.5μC/cm2. Domain patterning was applied to a 50-nm-thick PbTiO3 film using a conductive cantilever probe. The minimum radius of the nano domain dot was 12nm, corresponding to a data density of 1 Tbit/inch2.

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