Properties of clean surface of BaTiO 3 single crystals in UHV and virtual absence of nonferroelectric surface layer

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Multiple scanning probe microscopy (potential, piezoelectric-response and topological imaging) of 180° domains of atomically clean surface of BaTiO 3 single crystals is performed in ultrahigh vacuum (UHV). The 180° domains identified by the microscopy exhibit the potential difference across the domain boundaries that is far lower than the conventional Kittel model prediction. This result is inexplicable by nonferroelectric passive surface layer or closure domain. Instead, the surface conduction indicates that an intrinsic electric screening exists and spontaneous polarization reaches almost the top surface.

Original languageEnglish
Pages (from-to)28-32
Number of pages5
JournalFerroelectrics
Volume419
Issue number1
DOIs
Publication statusPublished - Dec 1 2011

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Ultrahigh vacuum
ultrahigh vacuum
surface layers
Single crystals
single crystals
microscopy
Imaging techniques
Scanning probe microscopy
closures
Microscopic examination
Screening
screening
Polarization
conduction
scanning
probes
polarization
predictions

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Properties of clean surface of BaTiO 3 single crystals in UHV and virtual absence of nonferroelectric surface layer. / Watanabe, Yukio.

In: Ferroelectrics, Vol. 419, No. 1, 01.12.2011, p. 28-32.

Research output: Contribution to journalArticle

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