Room temperature magnetoelectric coupling in Zn1 xCoxO/BaTiO3bilayer system

A. Sundararaj, H. Annal Therese, Shiva Ramaswamy, G. Chandrasekaran, K. Annamalai

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    5 Citations (Scopus)


    © 2014 AIP Publishing LLC. We report on room temperature magnetoelectric coupling in Zn1 xCoxO/BaTiO3(x = 0.02, 0.05, and 0.10) bilayer thinfilm multiferroic system (BLS) grown on SrTiO3(100) substrate. All the BLSs exhibit room temperature ferroelectric response. The BLS with x = 0.02 is paramagnetic, while the BLS with x = 0.05 and 0.10 is weakly ferromagnetic. Increase in Co concentration of the BLS results in reduction of permittivity and electric polarization along with increase of coercive voltage, coercive field, and magnetic moment. The d33value change from 23 pm/V to 30 pm/V with increase in external magnetic field from 1500 G to 2500 G for BLS with x = 0.05. This shows that Zn1 xCoxO/BaTiO3is magnetoelectrically coupled at room temperature.
    Original languageEnglish
    Pages (from-to)1-6
    JournalApplied Physics Letters
    Issue number13
    Publication statusPublished - 2014


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