Effect of substrate miscut on the microstructure in epitaxial Pb(Mg1/3Nb2/3)O3-PbTiO3 thin films

Chekhonin P, Mietschke M, Pohl D, Schmidt F, Faeler S, Skrotzki W, Nielsch K, Huehne R (2017)

Publication Type: Journal article

Publication year: 2017

Journal

Materials Characterization Elsevier

Book Volume: 129

Pages Range: 234-241

DOI: 10.1016/j.matchar.2017.05.003

Abstract

Pb(Mg1/3Nb2/3)O3-PbTiO3 is known for its excellent ferroelectric and electrocaloric properties. Epitaxial films, which allow applying high voltages, can be grown in a much broader parameter range when depositing them on miscut substrates than on those without miscut. To understand the influence of substrate miscut, here the structure and microstructure of two films, with and without miscut, is compared in detail. In both cases the epitaxial strain is relaxed, but while in films without miscut perfect misfit dislocations are observed, the film with miscut exhibits many partial dislocations and stacking faults. The stacking faults may play an important role for the stabilization of the pure perovskite Pb(Mg1/3Nb2/3)O3-PbTiO3 phase in thin films on miscut substrates.

Involved external institutions

Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden e.V. (IFW) / Leibniz Institute for Solid State and Materials Research Dresden DE Germany (DE) Technische Universität Dresden DE Germany (DE)

How to cite

APA:

Chekhonin, P., Mietschke, M., Pohl, D., Schmidt, F., Faeler, S., Skrotzki, W.,... Huehne, R. (2017). Effect of substrate miscut on the microstructure in epitaxial Pb(Mg1/3Nb2/3)O3-PbTiO3 thin films. Materials Characterization, 129, 234-241. https://doi.org/10.1016/j.matchar.2017.05.003

MLA:

Chekhonin, Paul, et al. "Effect of substrate miscut on the microstructure in epitaxial Pb(Mg1/3Nb2/3)O3-PbTiO3 thin films." Materials Characterization 129 (2017): 234-241.

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