Goswami, Sudipta and Mishra, Shubhankar and Sen, Shrabanee and Ghosh, Chandan Kumar and Bhattacharya, Dipten (2023) Large room-temperature magnetodielectric effect in polyvinylidene fluoride-trifluoroethylene/La0.7Sr0.3MnO3 (0-3) nanocomposite thin films. Journal of Physics and Chemistry of Solids, 179. Art No-111418. ISSN 0022-3697

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We observe large room-temperature magnetodielectric effect (nearly 12% suppression of dielectric constant under similar to 20 kOe field) as well as its remarkable field-driven switch - from positive to negative - in polyvinyli-dene fluoride-trifluoroethylene/La0.7Sr0.3MnO3 (PVDF-TrFE/LSMO) thin films (0-3 connectivity) containing 7.5 volume% LSMO. The magnetodielectric effect is mapped with the volume fraction of the LSMO nanoparticle across 5-20 volume%. It reveals a close correlation among the LSMO nanoparticles volume fraction, their distribution pattern within the PVDF-TrFE matrix, uniformity in the magnetic domain size (imaged by magnetic force microscopy), and the magnetodielectric effect. The observed 20% jump in the intrinsic bulk capacitance at a critical magnetic field H, similar to 10 kOe can be exploited to develop smart nanoscale magnetoelectric devices.

Item Type: Article
Subjects: Electronics
Depositing User: Bidhan Chaudhuri
Date Deposited: 13 Oct 2023 07:21
Last Modified: 13 Oct 2023 07:21
URI: http://cgcri.csircentral.net/id/eprint/5591

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