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RESEARCH PRODUCT

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

S. Z. WuRobert M. ReeveYong JiangXiaoguang XuXuze ZhangWan-sen YanJun Miao

subject

MultidisciplinaryExchange biasMaterials scienceFerromagnetismCondensed matter physicsStrain (chemistry)Electric fieldMultiferroicsHeterojunctionSubstrate (electronics)BioinformaticsArticleMagnetic field

description

AbstractThe 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.

yearjournalcountryeditionlanguage
2015-03-10Scientific reports
10.1038/srep08905https://pubmed.ncbi.nlm.nih.gov/25752272