Evaluation of magnetoelectric coupling in a BaTiO(3)-Ni composite ferroic film by impedance spectroscopy

L Qiao, X F Bi

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A ferroic film of BaTiO(3) (BTO) containing 22.7 at. % Ni was fabricated by the radio frequency cosputtering method. It reveals that the Ni spontaneously stays apart from the BTO phase and congregates around the BaTiO(3) grains by using a high resolution transmission electron microscopy equipped with an electron dispersive spectroscopy. The impedance characterization for the BTO grains in the Ni-containing film is greatly varied with the application of different magnetic fields, while that of a BTO film remains unaffected. This indicates that a magnetoelectric coupling is induced in the ferroic film through an elastic interaction between the magnetostrictive Ni and the BTO. (C) 2008 American Institute of Physics.
    Original languageEnglish
    JournalApplied Physics Letters
    Volume92
    Issue number21
    DOIs
    Publication statusPublished - 2008

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