Synthesis and properties of Nd-substituted bismuth titanate polycrystalline thin films with polar-axis orientation

Masahiro Kurachi, Hirofumi Matsuda, Takashi Iijima, Hiroshi Uchida, Seiichiro Koda, Takayuki Watanabe, Hiroshi Funakubo

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

To gain a deep insight into the contribution of Nd-substitution, we have investigated structural phase transition behavior in Bi4-xNd xTi3O12 (BNT) powders derived from chemical solutions. Differential thermal analysis and thermo-gravimetry (DTA-TG) and X-ray diffraction (XRD) studies indicated that the para- and ferroelectric transition temperature (Curie temperature, Tc) continuously decreased with increasing x. The XRD studies also showed that continuous decrease in lattice anisotropy (a/b, orthorhombicity) with the increase of x. Considering the close relationship with Tc, a/b and spontaneous polarization Ps in displacive ferroelectrics, Nd-substitution may not enhance the intrinsic Ps in Bi4Ti3O12 (BIT). For direct evaluation of Ps upon Nd-substitution, synthesis route to polar-axis-orientated BNT films was investigated.

Original languageEnglish
Pages (from-to)53-56
Number of pages4
JournalKey Engineering Materials
Volume269
Publication statusPublished - 2004
Externally publishedYes

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Bismuth
Substitution reactions
Thin films
Ferroelectric materials
X ray diffraction
Gravimetric analysis
Curie temperature
Powders
Differential thermal analysis
Superconducting transition temperature
Anisotropy
Phase transitions
Polarization
bismuth titanate

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Chemical Engineering (miscellaneous)

Cite this

Synthesis and properties of Nd-substituted bismuth titanate polycrystalline thin films with polar-axis orientation. / Kurachi, Masahiro; Matsuda, Hirofumi; Iijima, Takashi; Uchida, Hiroshi; Koda, Seiichiro; Watanabe, Takayuki; Funakubo, Hiroshi.

In: Key Engineering Materials, Vol. 269, 2004, p. 53-56.

Research output: Contribution to journalArticle

Kurachi, Masahiro ; Matsuda, Hirofumi ; Iijima, Takashi ; Uchida, Hiroshi ; Koda, Seiichiro ; Watanabe, Takayuki ; Funakubo, Hiroshi. / Synthesis and properties of Nd-substituted bismuth titanate polycrystalline thin films with polar-axis orientation. In: Key Engineering Materials. 2004 ; Vol. 269. pp. 53-56.
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AU - Kurachi, Masahiro

AU - Matsuda, Hirofumi

AU - Iijima, Takashi

AU - Uchida, Hiroshi

AU - Koda, Seiichiro

AU - Watanabe, Takayuki

AU - Funakubo, Hiroshi

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