文章基本信息

标题：Strain-mediated electric-field control of exchange bias in a Co₉₀Fe₁₀/BiFeO₃/SrRuO₃/PMN-PT heterostructure
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作者：S. Z. Wu ; J. Miao ; X. G. Xu 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2015
卷号：5
DOI：10.1038/srep08905
出版社：Springer Nature
摘要：The electric-field (E-field) controlled exchange bias (EB) in a Co₉₀Fe₁₀/BiFeO₃ (BFO)/SrRuO₃/PMN-PT heterostructure has been investigated under different tensile strain states. The in-plane tensile strain of the BFO film is changed from +0.52% to +0.43% as a result of external E-field applied to the PMN-PT substrate. An obvious change of EB by the control of non-volatile strain has been observed. A magnetization reversal driven by E-field has been observed in the absence of magnetic field. Our results indicate that a reversible non-volatile E-field control of a ferromagnetic layer through strain modulated multiferroic BFO could be achieved at room temperature.