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    • Magnetic and magnetoelectric properties of Ni$_x$Cu$_{1–x}$Fe$_2$O$_4$–PbZr$_{0.52}$Ti$_{0.48}$O$_3$ single and multilayered thick films

      SHAIK SABIRA BEGUM S S BELLAD

      Volume 45 Published: 30 June 2022 Article ID 0120

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/045/0120

    • Keywords

       

      Ferroelectrics; screen printing; ferrites; multilayer; dielectric; magnetoelectric effect.

    • Abstract

       

      Nano-phase ferrite, Ni$_x$Cu$_{1–x}$Fe$_2$O$_4$ (where x = 0.3, 0.4, 0.5, 0.6, 0.7 and 0.9) and ferroelectric, PbZr$_{0.52}$Ti$_{0.48}$O$_3$ are synthesized by autocombustion method. Trilayered NiCuFe$_2$O$_4$/PZT/NiCuFe$_2$O$_4$ and single layer of y(Ni$_x$Cu$_{1–x}$Fe$_2$O$_4$) + (1–y) (Pb(Zr$_{0.52}$Ti$_{0.48}$)O$_3$) composite thick films are fabricated on fluorine tin oxide coated glass substrates using a screen printing technique. The X-ray diffraction (XRD) patterns confirm the highly crystallized spinal structure in the ferrite phase and perovskite structure in the ferroelectric phase. The scanning electron microscope images show that the grain size in trilayered and single-layered films is in the range 100 and 200 nm, respectively; which is also confirmed by broadened peaks in the XRD pattern. The hysteresis loop studies using vibrating sample magnetometer reveal that both saturation magnetization and coercivity decrease slightly with an increase in composition parameter x offerrite phase and is attributed to the negative magnetostriction coefficient of nickel present in the ferrite phase. The magnetoelectric (ME) voltage coefficient (${\alpha}_{E31}$) vs. DC bias magnetic field shows a peak due to enhanced domain activityand piezoelectric effect. The trilayered thick films exhibit larger values of ME coefficient as compared to single-layered films due to the higher resistivity of trilayered films.

    • Author Affiliations

       

      SHAIK SABIRA BEGUM S S BELLAD1

      1. Department of Physics, Materials Research Center, Maharani Science College for Women, Maharani Cluster University, Bengaluru 560 001, India

    • Dates

       
      Published
      30 June 2022
      Manuscript received
      23 November 2021
      Accepted
      25 February 2022
      Final version published online
      30 June 2022

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