Lateral electric-field control of giant magnetoresistance in Co/Cu/Fe/BaTiO3 multiferroic heterostructure

作者: S. Savitha Pillai , H. Kojima , M. Itoh , T. Taniyama

DOI: 10.1063/1.4929339

关键词:

摘要: We report lateral electric-field-driven sizable changes in the magnetoresistance of Co/Cu/Fe tri-layered wires on BaTiO3 single crystal. While observed change is marginal tetragonal phase BaTiO3, it reaches over 40% orthorhombic and rhombohedral phases with an electric field 66 kV/cm. attribute to possible electric-field-induced variations spin-dependent electronic structures, i.e., spin polarization, Fe via interfacial strain transfer from BaTiO3. The contrasting results for different are discussed, associated distinct aspects ferroelectric polarization switching processes each phase.

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