Preparation of LSMO/PLZT Composite Film by Sol-Gel Technique and its Ferroelectric and Ferromagnetic Properties

Abstract:

La_0.67Sr_0.33MnO₃ (LSMO)/Pb_0.92La_0.08Zr_0.65Ti_0.35O₃ (PLZT) composite film was fabricated on a (001) LaAlO₃ (LAO) single crystal substrate by a sol-gel technique. The results from X-ray diffraction (XRD) indicated that LSMO and PLZT could grow successively on LAO substrate with (001) preferred orientation. The ferroelectric and ferromagnetic properties of LAO/LSMO/PLZT composite film were also investigated. The results showed that the remnant polarization P_r, and coercive field E_c of the composite film at room temperature were 36.38 μC/cm² and 512.43 kV/cm respectively. Moreover, the composite film exhibited significant ferromagnetic hysteresis loops and soft magnetic behavior at temperatures lower than 250 K.

• Periodical: Materials Science Forum (Volume 815)
• Pages: 166-170
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.815.166
• Online since: March 2015
• Authors: Zong Fan Duan*, Juan Ning Wei, Ying Cui, Gao Yang Zhao
• Keywords: LSMO, Magnetoelectric, Multiferroic, PLZT, Sol-Gel

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