Electrical properties of a-axis aligned lanthanum-modified lead titanate thin films prepared using sol-gel process

Dae Sung Yoon, Chang Jung Kim, Joon Sung Lee, Chan Gi Choi, Won Jong Lee, Kwangsoo No

Research output: Contribution to journalArticle

Abstract

The (100) epitaxial lanthanum-modified lead titanate (PLT) film was fabricated using sol-gel method on platinized MgO substrates. The substrate used was Pt(100)/Ti(100)/MgO where Pt and Ti layers had been sputter-deposited at 600°C. We used the direct furnace insertion method and the crystallization temperature of 700°C in order to fabricate the epitaxial film. The phase of the film was examined using x-ray diffraction (XRD) and the film orientation was examined by pole figure and x-ray rocking curves. The epitaxial PLT thin film had higher dielectric constant and better ferroelectricity and fatigue resistance than the polycrystalline films. However, it shows higher leakage current than the polycrystalline film.

Original languageEnglish
Pages (from-to)277-282
Number of pages6
JournalMetals and Materials International
Volume3
Issue number4
DOIs
Publication statusPublished - 1997 Jan 1
Externally publishedYes

Fingerprint

Lanthanum
sol-gel processes
lanthanum
Sol-gel process
Electric properties
Lead
electrical properties
Thin films
thin films
Epitaxial films
Ferroelectricity
X rays
Substrates
Crystallization
Leakage currents
ferroelectricity
Poles
Furnaces
Permittivity
Diffraction

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

Cite this

Electrical properties of a-axis aligned lanthanum-modified lead titanate thin films prepared using sol-gel process. / Yoon, Dae Sung; Kim, Chang Jung; Lee, Joon Sung; Choi, Chan Gi; Lee, Won Jong; No, Kwangsoo.

In: Metals and Materials International, Vol. 3, No. 4, 01.01.1997, p. 277-282.

Research output: Contribution to journalArticle

Yoon, Dae Sung ; Kim, Chang Jung ; Lee, Joon Sung ; Choi, Chan Gi ; Lee, Won Jong ; No, Kwangsoo. / Electrical properties of a-axis aligned lanthanum-modified lead titanate thin films prepared using sol-gel process. In: Metals and Materials International. 1997 ; Vol. 3, No. 4. pp. 277-282.
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