Strain-mediated electric-field control of exchange bias in a Co90Fe10/BiFeO3/SrRuO3/PMN-PT heterostructure.
Strain-mediated electric-field control of exchange bias in a Co90Fe10/BiFeO3/SrRuO3/PMN-PT heterostructure.
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Co90Fe10/BiFeO3/SrRuO3/PMN-PT 异质结构中交换偏压的应变介导电场控制
DOI:
10.1038/srep08905
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发表时间:
2015-03-10
影响因子:
4.6
通讯作者:
Jiang Y
中科院分区:
文献类型:
--
作者:
Wu SZ;Miao J;Xu XG;Yan W;Reeve R;Zhang XH;Jiang Y
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.
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