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Proceedings Article

Polarization coupling in epitaxial ZnO / BaTiO3 thin film heterostructures on SrTiO3 (100) substrates

[+] Author Affiliations
Michael Lorenz, Matthias Brandt, Holger Hochmuth, Holger von Wenckstern, Marius Grundmann

Univ. Leipzig (Germany)

Jürgen Schubert

Forschungszentrum Jülich GmbH (Germany)

Mathias Schubert

Univ. of Nebraska/Lincoln

Proc. SPIE 6474, Zinc Oxide Materials and Devices II, 64741S (February 20, 2007); doi:10.1117/12.715217
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From Conference Volume 6474

  • Zinc Oxide Materials and Devices II
  • Ferechteh Hosseini Teherani; Cole W. Litton
  • San Jose, CA | January 20, 2007

abstract

Strong polarization coupling is expected by combining ferroelectric materials with switchable polarization and wurtzite layers exhibiting a permanent spontaneous polarization. To demonstrate these charge coupling effects, current-voltage, conductivity-frequency and capacitance-frequency (admittance) characteristics have been measured on epitaxial heterostructures grown of ferroelectric BaTiO3 (001) films on conducting SrRuO3 layers on SrTiO3 (100) substrates with oxide SrRuOx, metallic Pt and semiconducting ZnO top electrodes. The electrical measurements show clear indications for polarization coupling of the ferroelectric perovskite BaTiO3 and the piezoelectric wurtzite ZnO thin films.

© (2007) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Michael Lorenz ; Matthias Brandt ; Jürgen Schubert ; Holger Hochmuth ; Holger von Wenckstern, et al.
"Polarization coupling in epitaxial ZnO / BaTiO3 thin film heterostructures on SrTiO3 (100) substrates", Proc. SPIE 6474, Zinc Oxide Materials and Devices II, 64741S (February 20, 2007); doi:10.1117/12.715217; http://dx.doi.org/10.1117/12.715217


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