Bala, Kanchan and Kotnala, R. K. and Shah, Jyoti and Negi, N. S. (2018) AFe(2)O(4)/(Pb0.80Sr0.20)TiO3 (A = Mn, Ni and Co): a New Room-Temperature Magnetoelectric Multiferroic Bi-layered Composite Films. Journal of Superconductivity and Novel Magnetism, 31 (9). pp. 3007-3023. ISSN 1557-1939

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The room temperature and magnetic field-dependent dielectric, impedance and magnetoelectric (ME) coupling effect of polycrystalline AFe(2)O(4)/(Pb0.80Sr0.20)TiO3 (A = Mn, Ni and Co) bi-layered composite films have been investigated. The structural and microstructural analyses using the X-ray diffraction (XRD), atomic force microscopy (AFM) and scanning electron microscopy (SEM) reveal the presence of homogenous growth of both tetragonal and spinel phases without any extra phase and diffusion in the AFO/PST20 bi-layered composite films. Our results show that all composite films exhibit ferroelectric as well as considerable magnetic, indicating magnetoelectric coupling effect. Our results show that the dielectric and impedance properties of AFO/PST20 bi-layered composite films can be manipulated by the magnetic field at room temperature, also indicating the existence of magnetoelectric coupling. The impedance (Z (') and Z (aEuro3)) Nyquist plots show distinct electrical responses with the magnetic field. The maximum magnetoelectric coefficient (alpha) is found to be alpha (ME) 239 and 195 mV/cm/Oe for the MFO/PST20 and CFO/PST20 bi-layered composite films, respectively. The above results show that the AFO/PST20 bi-layered composite films are room-temperature multiferroic material that can be potentially used in magnetoelectric devices.

Item Type: Article
Additional Information: Copyright for this article belongs to M/s Springer Verlag.
Subjects: Applied Physics/Condensed Matter
Depositing User: Mr. Yogesh Joshi
Date Deposited: 17 Oct 2019 08:04
Last Modified: 17 Oct 2019 08:04

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