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

Michael Lorenz; Matthias Brandt; Jürgen Schubert; Holger Hochmuth; Holger Von Wenckstern; Mathias Schubert; Marius Grundmann

doi:10.1117/12.715217

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

Michael Lorenz, Matthias Brandt, Jürgen Schubert, Holger Hochmuth, Holger Von Wenckstern, Mathias Schubert, Marius Grundmann

Electrical & Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Scopus citations

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 SrRuO ₃ layers on SrTiO₃ (100) substrates with oxide SrRuO _x, 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.

Original language	English (US)
Title of host publication	Zinc Oxide Materials and Devices II
DOIs	https://doi.org/10.1117/12.715217
State	Published - 2007
Event	Zinc Oxide Materials and Devices II - San Jose, CA, United States Duration: Jan 21 2007 → Jan 24 2007

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	6474
ISSN (Print)	0277-786X

Other

Other	Zinc Oxide Materials and Devices II
Country/Territory	United States
City	San Jose, CA
Period	1/21/07 → 1/24/07

Keywords

Ferroelectric switching
Oxide heterostructures
Polarization coupling
Pulsed laser deposition
Wurtzite structure

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.715217

Cite this

Lorenz, M., Brandt, M., Schubert, J., Hochmuth, H., Von Wenckstern, H., Schubert, M., & Grundmann, M. (2007). Polarization coupling in epitaxial ZnO / BaTiO₃ thin film heterostructures on SrTiO₃ (100) substrates. In Zinc Oxide Materials and Devices II Article 64741S (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6474). https://doi.org/10.1117/12.715217

Polarization coupling in epitaxial ZnO / BaTiO₃ thin film heterostructures on SrTiO₃ (100) substrates. / Lorenz, Michael; Brandt, Matthias; Schubert, Jürgen et al.
Zinc Oxide Materials and Devices II. 2007. 64741S (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6474).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Lorenz, M, Brandt, M, Schubert, J, Hochmuth, H, Von Wenckstern, H, Schubert, M & Grundmann, M 2007, Polarization coupling in epitaxial ZnO / BaTiO₃ thin film heterostructures on SrTiO₃ (100) substrates. in Zinc Oxide Materials and Devices II., 64741S, Proceedings of SPIE - The International Society for Optical Engineering, vol. 6474, Zinc Oxide Materials and Devices II, San Jose, CA, United States, 1/21/07. https://doi.org/10.1117/12.715217

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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 SrRuO 3 layers on SrTiO3 (100) substrates with oxide SrRuO x, 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.",

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