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Stronger Photo-Induced Effect in Epitaxial Thin Films of Small-Bandwidth Manganite Pr1−x Ca x MnO3 Compared to the Polycrystalline Bulk

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Abstract

Photo-induced magnetization has been studied in small-bandwidth manganite Pr1−x Ca x MnO3 (x = 0.1) (PCMO) bulk and thin films. It is observed that the persistent change in magnetization under optical excitation is much stronger in epitaxial thin films of PCMO compared to the bulk. This change is manifested in a change of both coercive field and Curie temperature of the thin films. Stronger photo-induced effect in the thin films might have their origin in the substrate-induced strain effect on the magnetic properties.

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Acknowledgments

The authors acknowledge Jenny and Antti Wihuri Foundation. SM acknowledges Turku Collegium for Science and Medicine and Kone Foundation for financial support.

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Authors and Affiliations

  1. Wihuri Physical Laboratory, Department of Physics and Astronomy, University of Turku, 20014, Turku, Finland

    Sayani Majumdar, Hannu Huhtinen, Tomi Elovaara & Petriina Paturi

  2. NanoSpin, Department of Applied Physics, Aalto University School of Science, P.O. Box 15100, 00076, Aalto, Finland

    Sayani Majumdar

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  1. Sayani Majumdar
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  2. Hannu Huhtinen
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  4. Petriina Paturi
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Correspondence to Sayani Majumdar.

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Majumdar, S., Huhtinen, H., Elovaara, T. et al. Stronger Photo-Induced Effect in Epitaxial Thin Films of Small-Bandwidth Manganite Pr1−x Ca x MnO3 Compared to the Polycrystalline Bulk. J Supercond Nov Magn 28, 197–201 (2015). https://doi.org/10.1007/s10948-014-2838-z

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  • DOI: https://doi.org/10.1007/s10948-014-2838-z

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