Voltage Control of Magnetic Monopoles in Artificial Spin Ice
arXiv:1803.08598 · doi:10.1088/1361-6463/aac0ae
Abstract
Current research on artificial spin ice (ASI) systems has revealed unique hysteretic memory effects and mobile quasi-particle monopoles controlled by externally applied magnetic fields. Here, we numerically demonstrate a strain-mediated multiferroic approach to locally control the ASI monopoles. The magnetization of individual lattice elements is controlled by applying voltage pulses to the piezoelectric layer resulting in strain-induced magnetic precession timed for 180 degree reorientation. The model demonstrates localized voltage control to move the magnetic monopoles across lattice sites, in CoFeB, Ni, and FeGa based ASIs. The switching is achieved at frequencies near ferromagnetic resonance and requires energies below 620 aJ. The results demonstrate that ASI monopoles can be efficiently and locally controlled with a strain-mediated multiferroic approach.
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Cited by in corpus (4)
- Magnetization Dynamics of Fibonacci-Distorted Kagome Artificial Spin Ice
- On the micromagnetic behavior of dipolar-coupled nanomagnets in defective square artificial spin ice systems
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