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Magnetodielectric properties of La0.67Sr0.33MnO3 and Ba0.7Sr0.3TiO3 thin film heterostructures

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Abstract

The paper discuses synthesis and magnetodielectric properties of La0.67Sr0.33MnO3 (LSMO), Ba0.7Sr0.3TiO3 (BST), and BST/LSMO thin film heterostructures. The XRD spectra are determined for confirmation of the crystal structure of LSMO, BST and formation of a pure bi-phase composite. The paper presents variation of Cp and tanδ as a function of frequency between 100 Hz to 1 MHz and applied magnetic field up to 0.6 T. The observed variation of Cp, tanδ, magnetocapacitance and impedance spectra are analyzed in terms of a possible equivalent circuit model. The present analysis shows that the method of impedance spectra could be used to separate out the possible contributions.

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Correspondence to Pradeep Joshi.

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Tarale, A., Kolekar, Y.D., Mathe, V.L. et al. Magnetodielectric properties of La0.67Sr0.33MnO3 and Ba0.7Sr0.3TiO3 thin film heterostructures. Electron. Mater. Lett. 8, 381–385 (2012). https://doi.org/10.1007/s13391-012-2027-9

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  • DOI: https://doi.org/10.1007/s13391-012-2027-9

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