Structural, Dielectric, and Ferroelectric Properties of a BiFeO3/Sr0.5Ba0.5Nb2O6/Pt(001)/MgO(001) Heterostructure
Source abstract
Abstract
Abstract— Using rf cathode sputtering in an oxygen atmosphere, we produced a heterostructure based on the bismuth ferrite (BFO) multiferroic and barium strontium niobate (SBN) ferroelectric: BiFeO3(1000 nm)/Sr0.5Ba0.5Nb2O6(1000 nm)/Pt(001)/MgO(001). It was free of impurity phases and had a root mean square surface roughness within 1% of its thickness. All of the layers in the heterostructure were grown epitaxially. The SBN-50 layer consisted of orientation domains tilted in the plane of the interface by ±18.4° with respect to the MgO substrate axes, and the crystallographic axes of the BFO and Pt layers were parallel to the substrate axes. The ferroelectric polarization of the material at U = 90 V was shown to be 59.3 μC/cm2. Our results demonstrate that, to describe the behavior of the relative dielectric permittivity (ε) of the heterostructure in the range 25–250°C, it is sufficient to take into account the ε(t) data for each layer. The mechanisms underlying the observed effects are discussed.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Multiferroics and related materials · Microwave Dielectric Ceramics Synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (13)
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1. Vorotilov, K.A., Mukhortov, V.M., and Sigov, A.S., Integrirovannye segnetoelektricheskie ustroistva (Integrated Ferroelectric Devices), Sigov, A.S., Ed., Moscow: Energoatomi-zdat, 2011.
2. Gritsenko, V.A. and Islamov, D.R., Fizika dielektricheskikh plenok: mekhanizmy transporta zaryada i fizicheskie osnovy priborov pamyati (Physics of Dielectric Films: Charge Transport Mechanisms and Physical Foundations of Memory Devices), Novosibirsk: Parallel’, 2017.
3. Mukhortov, V.M., Golovko, Yu.I., and Tolmachev, G.N., Preparation of single-crystal mixed oxide nanofilms via atom–cluster–crystal three-dimensional ordering, Vestn. Yuzhn. Nauchn. Tsentra Ross. Akad. Nauk, 2006, vol. 2, no. 1, pp. 30–36.10.23885/1813-4289-2006-2-1-30-36 ↗
4. Zinchenko, S.P., Stryukov, D.V., Pavlenko, A.V., and Mukhortov, V.M., The effect of a Ba0.2Sr0.8TiO3 sublayer on the structure and electric characteristics of lead zirconate titanate films on the Si(001) substrate, Tech. Phys. Lett., 2020, vol. 46, no. 12. pp. 1196–1199. https://doi.org/10.1134/S106378502012015910.1134/S1063785020120159 ↗
5. Stryukov, D.V., Mukhortov, V.M., Golovko, Yu.I., and Biryukov, S.V., Specific features of the ferroelectric state in two-layer barium strontium titanate-based heterostructures, Phys. Solid State, 2018, vol. 60, no. 1, pp. 115–119. https://doi.org/10.1134/S106378341801025010.1134/S1063783418010250 ↗
6. Verbenko, I.A., Glazunova, E.V., Dudkina, S.I., and Reznichenko, L.A., Ekologicheski chistye intellektual’nye materialy s osobymi elektricheskimi i magnitnymi svoistvami. Puti poiska: modifitsirovanie (Environmentally Clean Smart Materials with Special Electrical and Magnetic Properties: Modification as a Search Strategy), Rostov-on-Don: Fond Nauki i Obrazovaniya, 2020, vol. 1.
7. Physics of Ferroelectrics: A Modern Perspective, Rabe, K.M., Ahn, Ch.H., and Triscon, J.-M., Eds., Berlin: Springer, 2007.
8. Okatan, M.B., Misirlioglu, I.B., and Alpay, S.P., Contribution of space charges to the polarization of ferroelectric superlattices and its effect on dielectric properties, Phys. Rev. B: Condens. Matter Mater. Phys., 2010, vol. 82, p. 094115.10.1103/PhysRevB.82.094115 ↗
9. Kuz’minov, Yu.S., Segnetoelektricheskie kristally dlya upravleniya lazernym izlucheniem (Ferroelectric Crystals for Laser Beam Steering), Moscow: Nauka, 1982.
10. Pavlenko, A.V., Stryukov, D.V., and Kubrin, S.P., The phase composition and structure of the BiFeO3 film grown on MgO(001) substrate by high frequency cathode deposition in oxygen atmosphere, Phys. Solid State, 2022, vol. 64, no. 2, pp. 212–216. https://doi.org/10.21883/PSS.2022.02.52969.21510.21883/PSS.2022.02.52969.215 ↗
11. Pavlenko, A.V., Zakharchenko, I.N., Kudryavtsev, Yu.A., Kiseleva, L.I., and Alikhadzhiev, S.Kh., Structural characteristics of thin Sr0.5Ba0.5Nb2O6 films in the temperature range 20–500°C, Inorg. Mater., 2020, vol. 56, no. 11, pp. 1188–1192. https://doi.org/10.1134/S002016852010011810.1134/S0020168520100118 ↗
12. Pavlenko, A.V., Stryukov, D.V., Kudryavtsev, Yu.A., Matyash, Ya.Yu., and Malomyzheva, N.V., Preparation, structural features, elemental composition of and dielectric properties of a two-layer structure based on thin films of multiferroic BiFeO3 and ferroelectric (Sr, Ba)Nb2O6, Phys. Solid State, 2022, vol. 64, no. 12, pp. 1923–1928. https://doi.org/10.21883/PSS.2022.12.54387.43910.21883/PSS.2022.12.54387.439 ↗
13. Scanning Probe Microscopy: Electrical and Electromechanical Phenomena at the Nanoscale, Kalinin, S.V. and Gruverman, A.V., Eds., New York: Springer, 2007, vol. 1, pp. 173–214.