Investigation of PbTiO3 thin films with reduced and re-oxidized treatment using Raman spectroscopy

Ken Nishida*, Minoru Osada, Hiroki Moriwake, Joe Sakai, Nobuaki Ito, Masamichi Nishide, Hirotaka Oka, Masashi Matsuoka, Rikyu Ikariyama, Hiroshi Funakubo, Takashi Katoda, Takashi Yamamoto

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Investigations of the lattice dynamics of defects, such as oxygen vacancies, are important to understand the properties of PbTiO3 and related materials. Herein polarized Raman spectra of epitaxial PbTiO3 thin films with reduced and re-oxidized treatment were investigated. The oxygen-reduced spectrum displayed an additional mode related to oxygen vacancies, whereas the re-oxidized spectrum was the same as the initial one. The oxygen vacancy content increases as the intensity of additional mode increases, while the intensity of the B mode related to oxygen ions decreases. First-principles calculations of the phonon mode related to oxygen vacancies support the assignment of the additional mode.

Original languageEnglish
Pages (from-to)859-862
Number of pages4
JournalNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Issue number1417
Publication statusPublished - 2013 Sept
Externally publishedYes


  • Additional mode
  • First-principles calculation
  • Oxygen vacancy
  • PbTiO thin film
  • Raman spectroscopy
  • Re-oxidized treatment
  • Reduced treatment

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry
  • General Chemistry
  • Condensed Matter Physics


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