Strain-mediated electric-field control of exchange bias in a Co90Fe10/BiFeO3/SrRuO3/PMN-PT heterostructure

Scientific Reports
S Z WuY Jiang

Abstract

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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Citations

Feb 10, 2018·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Hang JiYang Li
Dec 24, 2019·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Indranil ChakrabortyKaushik Roy
May 26, 2020·Advanced Materials·Huixin GuoZhiqi Liu
Feb 22, 2018·Journal of Physics. Condensed Matter : an Institute of Physics Journal·H JiY Li
Aug 25, 2021·ACS Applied Materials & Interfaces·Maksim E StebliyAlexander S Samardak
Jan 28, 2020·ACS Applied Materials & Interfaces·Liqian WangMing Liu

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Methods Mentioned

BETA
X-ray
AFM

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