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Chemical solution deposition of epitaxial La0.7Sr0.3MnO3 thin films by laser-assisted annealing

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Abstract

Epitaxial La0.7Sr0.3MnO3 thin films on SrTiO3 (001) single-crystal substrates were successfully prepared by a chemical solution deposition usage of an ultraviolet laser (KrF, λ = 248 nm)-assisted annealing at 400 °C. It was observed that the prepared thin films were amorphous when the laser energy density was below 50 mJ/cm2, and epitaxial La0.7Sr0.3MnO3 thin films were successfully obtained when the laser energy density was higher than 60 mJ/cm2. The epitaxial relationship is of La0.7Sr0.3MnO3(001)||SrTiO3(001) and La0.7Sr0.3MnO3[110]||SrTiO3[110]. With the enhancement of laser energy density, the temperatures of metal–insulator transition and magnetic transition are increased, and the resistivity is decreased. The results will provide a facile method to deposit epitaxial La0.7Sr0.3MnO3 thin films at low temperatures.

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All data analyzed during the study are included in this article. Here, we state that the submitted manuscript is original and has not been submitted elsewhere.

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Acknowledgements

This work was supported by Key Project of Support Plan for the Outstanding Youth of Anhui Provincial Colleges and Universities (gxyqZD2016144), the Natural Science Foundation of Anhui Education Office (No. KJ2019A0779), and the National Natural Science Foundation of China (No. U1432137).

Funding

The article is funded by Scientific Research Foundation of Education Department of Anhui Province of China, KJ2019A0779, Li Zhang.

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LZ: Writing and design; YL: Sample Preparation; RW: Data analysis; XK: Figure plotting and microstructure measurement; PL: Discussion; JY: Discussion; KH: Writing and discussion; XZ: Design and guidance.

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Correspondence to Li Zhang.

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Zhang, L., Liu, Y., Wei, R. et al. Chemical solution deposition of epitaxial La0.7Sr0.3MnO3 thin films by laser-assisted annealing. J Mater Sci: Mater Electron 33, 26414–26423 (2022). https://doi.org/10.1007/s10854-022-09321-3

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