Published March 2006 | Version v1
Journal article

Giant dielectric response of oxygen-deficient hexagonal BaTiO3

  • 1. Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, Sagamihara, Kanagawa (Japan)
  • 2. Tokyo Institute of Technology, Materials and Structures Laboratory, Yokohama, Kanagawa (Japan)
  • 3. Japan Science and Technology Agency, Kawaguchi, Saitama (Japan)

Description

Oxygen-deficient hexagonal BaTiO3 crystals were successfully grown by containerless processing and floating zone method. The resulting material exhibited a giant dielectric constant ε' exceeding 105 at room temperature, and a weak temperature dependence of ε' in the range of 70 to 300 K. We confirmed that the giant permittivity can arise from extrinsic effects as Maxwell-Wagner polarization. (author)

Additional details

Publishing Information

Journal Title
Kotai Butsuri
Journal Volume
41
Journal Issue
3
Journal Page Range
p. 187-200
ISSN
0454-4544