Abstract
Electric field manipulation of magnetism and 180° magnetization reversal are crucial for realizing magnetic storage devices with low-power consumption. Here, we demonstrate that electric-field manipulation of magnetic anisotropy rotation is achieved by the strain-mediated magnetoelectric effect in a Fe50Pt50/(011)0.7Pb(Mg1/3Nb2/3)O3–0.3PbTiO3/Au. The remanent magnetization and magnetic coercivity of the Fe50Pt50 film exhibit an obvious response with the change of the electric fields. Moreover, the reversible in-plane 180° magnetization reversal can be controlled by alternating on or off the electric field under a small bias magnetic field. These results suggest a promising application for realizing magnetoelectric random access memory (MeRAM) devices with low-power consumption.
Highlights
With the rapid development of electronic information, the demand for information memory devices with high speed, high density, and low power consumption is increasingly urgent
We demonstrate that electric-field control of magnetic anisotropy rotation, accompanied by a large ME effect, can be obtained in this Fe50 Pt50 (FePt)/(011)PMN-PT/Au
We demonstrate that the 180◦ magnetization reversal can be achieved in this ME composite with a small bias magnetic field by alternating on or off the electric field
Summary
With the rapid development of electronic information, the demand for information memory devices with high speed, high density, and low power consumption is increasingly urgent. Using an electric field instead of a traditional magnetic field is feasible to manipulate the magnetism in the design of low-power consumption MeRAM devices [21,23,24,34,35,36,37,38,39,40]. We demonstrate that electric-field control of magnetic anisotropy rotation, accompanied by a large ME effect, can be obtained in this FePt/(011)PMN-PT/Au. The remanent magnetization (Mr ) and Hc of the FePt film along the [100] or [01−1] direction exhibit an obvious anisotropic response with the applying electric fields. The remanent magnetization (Mr ) and Hc of the FePt film along the [100] or [01−1] direction exhibit an obvious anisotropic response with the applying electric fields Taking advantage of these properties, the 180◦ magnetization reversal can be controlled reversibly in this.
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