Observation of [110] surface band within {101} a-domain of heteroepitaxial PbTiO3 thin film fabricated by hydrothermal epitaxy

S. K. Choi, S. H. Ahn, W. W. Jung, J. C. Park, S. A. Song, C. B. Lim, Yasuo Cho

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Heteroepitaxial PbTi O3 film on an Nb-doped (001) cubic SrTi O3 substrate was fabricated by hydrothermal epitaxy at 200 °C. Piezoresponse force microscopy and x-ray Θ rocking curves confirmed that the film showed a caca multi-domain structure even though it did not undergo a cubic paraelectric (PE) to tetragonal ferroelectric (FE) phase transition. After heat treatment of this film at 600 °C, we observed the [110] surface band within the a -domain, which was formed through the PE to FE phase transition. We also found that a [110] surface band existed along the (1 1- 1) plane within the a -domain. We predicted that the [110] surface band would be monoclinic phase due to the interaction of two different variants of a -domains in the presence of a c -domain in the heteroepitaxial PbTi O3 film.

Original languageEnglish
Article number052901
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Issue number5
Publication statusPublished - 2006

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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