Radetinac, Aldin and Ziegler, Jürgen and Vafaee, Mehran and Alff, Lambert and Komissinskiy, Philipp (2017):
Growth and interface engineering in thin-film Ba 0.6 Sr 0.4 TiO 3 / SrMoO 3 heterostructures.
In: Journal of Crystal Growth, Elsevier Science Publishing, pp. 134-138, 463, ISSN 00220248,
[Online-Edition: http://doi.org/10.1016/j.jcrysgro.2017.02.015],
[Article]
Abstract
Epitaxial heterostructures of ferroelectric Ba0.6Sr0.4TiO3Ba0.6Sr0.4TiO3 and highly conducting SrMoO3SrMoO3 were grown by pulsed laser deposition on SrTiO3SrTiO3 (0 0 1) substrates. Surface oxidation of the SrMoO3SrMoO3 film is suppressed using a thin cap interlayer of Ba0.6Sr0.4TiO3-δBa0.6Sr0.4TiO3-δ grown in reduced atmosphere. As shown by X-ray photoelectron spectroscopy, the Mo4+Mo4+ valence state of the SrMoO3SrMoO3 films is stable upon annealing of the sample in oxygen up to 600 °C. The described oxygen interface engineering enables utilization of the highly conducting material SrMoO3SrMoO3 in multilayer oxide ferroelectric varactors.
| Item Type: | Article |
|---|---|
| Erschienen: | 2017 |
| Creators: | Radetinac, Aldin and Ziegler, Jürgen and Vafaee, Mehran and Alff, Lambert and Komissinskiy, Philipp |
| Title: | Growth and interface engineering in thin-film Ba 0.6 Sr 0.4 TiO 3 / SrMoO 3 heterostructures |
| Language: | English |
| Abstract: | Epitaxial heterostructures of ferroelectric Ba0.6Sr0.4TiO3Ba0.6Sr0.4TiO3 and highly conducting SrMoO3SrMoO3 were grown by pulsed laser deposition on SrTiO3SrTiO3 (0 0 1) substrates. Surface oxidation of the SrMoO3SrMoO3 film is suppressed using a thin cap interlayer of Ba0.6Sr0.4TiO3-δBa0.6Sr0.4TiO3-δ grown in reduced atmosphere. As shown by X-ray photoelectron spectroscopy, the Mo4+Mo4+ valence state of the SrMoO3SrMoO3 films is stable upon annealing of the sample in oxygen up to 600 °C. The described oxygen interface engineering enables utilization of the highly conducting material SrMoO3SrMoO3 in multilayer oxide ferroelectric varactors. |
| Journal or Publication Title: | Journal of Crystal Growth |
| Volume: | 463 |
| Publisher: | Elsevier Science Publishing |
| Uncontrolled Keywords: | A1. Surfaces, A1. Interfaces, A3. Laser epitaxy, A3. Heterostrostructures, B1. Perovskite oxides |
| Divisions: | 11 Department of Materials and Earth Sciences > Material Science > Advanced Thin Film Technology 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences |
| Date Deposited: | 19 May 2017 09:19 |
| Official URL: | http://doi.org/10.1016/j.jcrysgro.2017.02.015 |
| Identification Number: | doi:10.1016/j.jcrysgro.2017.02.015 |
| Funders: | This work was supported by the DFG projects GRK 1037 (TICMO) and KO 4093/1. |
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