期刊
JOURNAL OF PHYSICS D-APPLIED PHYSICS
卷 51, 期 23, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6463/aac0ae
关键词
artificial spin ice; multiferroic heterostructures; magnetoelastic
资金
- MARCO
- DARPA
- NSF Nanosystems Engineering Research Center for Translational Applications of Nanoscale Multiferroic Systems (TANMS) [EEC-1160504]
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 degrees reorientation. The model demonstrates localized voltage control to move the magnetic monopoles across lattice sites, in CoFeB, Ni, and FeGa based ASI's. 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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